{"id":5193,"date":"2026-09-04T10:50:00","date_gmt":"2026-09-04T02:50:00","guid":{"rendered":"https:\/\/www.solidess.com\/?p=5193"},"modified":"2026-09-04T10:49:50","modified_gmt":"2026-09-04T02:49:50","slug":"bess-ct-polarity-metering-commissioning","status":"publish","type":"post","link":"https:\/\/www.solidess.com\/ar\/bess-ct-polarity-metering-commissioning\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0642\u064a\u0627\u0633 \u0646\u0638\u0627\u0645 \u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0637\u0627\u0642\u0629 \u0628\u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0627\u062a (BESS) \u0648\u0642\u0637\u0628\u064a\u0629 \u0645\u062d\u0648\u0644 \u0627\u0644\u062a\u064a\u0627\u0631 (CT) \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062a\u062c\u0631\u064a\u0628\u064a"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5193\" class=\"elementor elementor-5193\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bf4793c e-con-full auto-article-root e-flex e-con e-parent\" data-id=\"bf4793c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6ad7038d auto-p elementor-widget elementor-widget-heading\" data-id=\"6ad7038d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A BESS CT polarity PASS releases the named PCC signal for the operating modes covered by the test. Usable kWh, power quality and availability stay under their own procedures. Before the metering result can pass, the electrical and controls teams have to agree on the measurement point, CT ratio, polarity, phase pairing, software sign and timestamp.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f04a86f4 auto-p elementor-widget elementor-widget-heading\" data-id=\"f04a86f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">When a 400 V <strong><a href=\"https:\/\/www.solidess.com\/ar\/product\/%d9%86%d8%b8%d8%a7%d9%85-%d8%aa%d8%ae%d8%b2%d9%8a%d9%86-%d8%a7%d9%84%d8%b7%d8%a7%d9%82%d8%a9-%d9%84%d9%84%d8%ae%d8%b2%d8%a7%d8%a6%d9%86-%d8%a7%d9%84%d8%ae%d8%a7%d8%b1%d8%ac%d9%8a%d8%a9\/\" target=\"_blank\" style=\"color:#61ce70\">MegSolid ESSA0100B-0215<\/a><\/strong> follows a charge or discharge command, a site-installed PCC measurement chain with reversed CTs can still report the opposite direction. The cabinet response and the site measurement have separate test boundaries. The <strong><a href=\"https:\/\/www.solidess.com\/ar\/ci-bess-testing-fat-sat-performance-acceptance\/\" target=\"_blank\" style=\"color:#61ce70\">C&amp;I BESS testing sequence<\/a><\/strong> places the final CT, voltage-input, meter and network checks at site.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da14e898 auto-p elementor-widget elementor-widget-heading\" data-id=\"da14e898\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Peak shaving and zero export both act on the PCC signal. The <strong><a href=\"https:\/\/www.solidess.com\/ar\/%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%aa%d8%ad%d8%af%d9%8a%d8%af-%d9%86%d8%b8%d8%a7%d9%85-%d8%a7%d9%84%d8%aa%d8%ad%d9%83%d9%85-%d9%81%d9%8a-%d8%b9%d8%af%d9%85-%d8%aa%d8%b5%d8%af%d9%8a%d8%b1-%d8%b7%d8%a7\/\" target=\"_blank\" style=\"color:#61ce70\">\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0646\u0638\u0627\u0645 BESS \u0644\u0644\u0631\u0642\u0627\u0628\u0629 \u0639\u0644\u0649 \u0627\u0644\u0635\u0627\u062f\u0631\u0627\u062a \u0627\u0644\u0635\u0641\u0631\u064a\u0629<\/a><\/strong> sets the control boundary. Commissioning has to show that the installed signal moves in the same direction as the physical power flow.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44751b89 auto-image elementor-widget elementor-widget-image\" data-id=\"44751b89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning.png\" class=\"attachment-1536x1536 size-1536x1536 wp-image-5190\" alt=\"\u062c\u0647\u0627\u0632 MegSolid ESSA0100B-0215 \u0628\u062c\u0627\u0646\u0628 \u0644\u0648\u062d\u0629 \u062a\u0648\u0632\u064a\u0639 \u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0628\u062c\u0647\u062f 400 \u0641\u0648\u0644\u062a \u0623\u062b\u0646\u0627\u0621 \u0625\u062c\u0631\u0627\u0621 \u0627\u062e\u062a\u0628\u0627\u0631 \u062a\u062d\u062f\u064a\u062f \u0642\u0637\u0628\u064a\u0629 \u0646\u0638\u0627\u0645 \u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0637\u0627\u0642\u0629 \u0628\u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0627\u062a (BESS) \u0645\u0646 \u0646\u0648\u0639 CT\" srcset=\"https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning.png 850w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning-300x300.png 300w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning-150x150.png 150w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning-768x768.png 768w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning-12x12.png 12w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning-600x600.png 600w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-CT-Polarity-Commissioning-100x100.png 100w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1aafc21 auto-h2 elementor-widget elementor-widget-heading\" data-id=\"e1aafc21\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why CT Polarity Alone Cannot Prove PCC Power Direction<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a01fa15 auto-p elementor-widget elementor-widget-heading\" data-id=\"5a01fa15\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A conventional CT converts primary current into a smaller secondary current. Import, export, charge and discharge acquire their meaning later in the measurement path. CT orientation, secondary terminals, voltage-phase pairing, meter settings, communications registers and the EMS sign all affect the final value.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e179e19 auto-p elementor-widget elementor-widget-heading\" data-id=\"3e179e19\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A polarity test can pass while the live PCC value remains wrong. P1\/P2 and S1\/S2 may agree, but L1 current may be paired with L2 voltage. The meter may calculate the correct primary current and the EMS may scale it again. Even a correct value becomes misleading when its timestamp is compared with the wrong PCS command.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d66b7e53 auto-p elementor-widget elementor-widget-heading\" data-id=\"d66b7e53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Commissioning follows the signal from the primary conductor to the control response. The signed result covers the meter, settings and operating mode used during that run.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9068cb0 auto-h3 elementor-widget elementor-widget-heading\" data-id=\"a9068cb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">A Plausible Reading Can Still Drive the Battery the Wrong Way<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9eb2affe auto-p elementor-widget elementor-widget-heading\" data-id=\"9eb2affe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Take a factory importing about 420 kW at its main incomer. The commissioning engineer commands 20 kW discharge. The PCS reaches its setpoint, yet the PCC meter rises towards 440 kW. Viewed on separate screens, neither number looks absurd.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8f2baf3 auto-p elementor-widget elementor-widget-heading\" data-id=\"d8f2baf3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The engineer holds the command at that point. Reversed CTs are one explanation; a voltage\/current phase mismatch, duplicated CT multiplier or inverted EMS sign can produce a similar trend. A clock offset may also place a load increase beside the wrong battery command.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2462863 auto-p elementor-widget elementor-widget-heading\" data-id=\"b2462863\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The original per-phase values are saved before anyone changes wiring or software. Troubleshooting then moves from the conductors towards the EMS tag, one layer at a time.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cdc59d67 auto-h2 elementor-widget elementor-widget-heading\" data-id=\"cdc59d67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Start With the Boundary and Sign Convention<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e24349b auto-p elementor-widget elementor-widget-heading\" data-id=\"3e24349b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A correctly wired meter at the wrong point cannot run whole-site peak shaving. For factory peak shaving, the PCC measurement normally sits upstream of the site loads and BESS feeder so it sees total grid exchange. A meter on the BESS feeder sees cabinet power only. A meter on one production board misses every load outside that board.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-afdd37ee auto-p elementor-widget elementor-widget-heading\" data-id=\"afdd37ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Trace the approved single-line diagram and mark:<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ae7f165 elementor-widget-mobile__width-inherit auto-list elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"3ae7f165\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">the primary conductor passing through each CT;<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">the voltage take-off used by the meter;<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">the meter or gateway publishing active power;<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">the EMS tag receiving that value;<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">every multiplier or sign conversion between the meter and controller.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a919c046 auto-p elementor-widget elementor-widget-heading\" data-id=\"a919c046\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">\u0627\u0644\u0640 <strong><a href=\"https:\/\/www.solidess.com\/ar\/%d8%aa%d9%88%d8%b5%d9%8a%d9%84-%d9%86%d8%b8%d8%a7%d9%85-%d8%aa%d8%ae%d8%b2%d9%8a%d9%86-%d8%a7%d9%84%d8%b7%d8%a7%d9%82%d8%a9-%d8%a7%d9%84%d8%a8%d8%b7%d8%a7%d8%b1%d9%8a%d8%a9-bess-%d8%a8%d8%ac%d9%87\/\" target=\"_blank\" style=\"color:#61ce70\">400 V BESS switchboard guide<\/a><\/strong> separates the cabinet feeder from the incomer, bus and site protection. The drawing used for commissioning should show that physical distinction.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54243aa5 auto-p elementor-widget elementor-widget-heading\" data-id=\"54243aa5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Write the sign convention beside the drawing. With grid import positive and BESS charging positive:<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a4a7a9e auto-p elementor-widget elementor-widget-heading\" data-id=\"1a4a7a9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\"><strong>P<sub>PCC<\/sub> \u2248 P<sub>site load<\/sub> + P<sub>BESS<\/sub><\/strong><\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33b24ac7 auto-p elementor-widget elementor-widget-heading\" data-id=\"33b24ac7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Discharge makes P<sub>BESS<\/sub> negative, so PCC import falls when the facility load stays roughly steady. Charging makes import rise. Projects may adopt a different sign convention. The meter, EMS, PCS, SCADA and signed test still need to agree on one definition.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a24d3ea auto-image elementor-widget elementor-widget-image\" data-id=\"1a24d3ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/PCC-Metering-Signal-Path.png\" class=\"attachment-1536x1536 size-1536x1536 wp-image-5191\" alt=\"PCC metering signal path from grid current transformers through the power meter and EMS to a MegSolid ESSA cabinet\" srcset=\"https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/PCC-Metering-Signal-Path.png 1000w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/PCC-Metering-Signal-Path-300x225.png 300w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/PCC-Metering-Signal-Path-768x576.png 768w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/PCC-Metering-Signal-Path-16x12.png 16w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/PCC-Metering-Signal-Path-600x450.png 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1809719c auto-h2 elementor-widget elementor-widget-heading\" data-id=\"1809719c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What to Verify at the CT and Meter<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-202c94f4 auto-p elementor-widget elementor-widget-heading\" data-id=\"202c94f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The de-energized review starts at the installed CT. The nameplate gives its primary and secondary rating, accuracy class, rated burden and terminal markings; some models also carry an individual serial number. The meter input must match the installed 1 A or 5 A secondary circuit.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99b1680d auto-h3 elementor-widget elementor-widget-heading\" data-id=\"99b1680d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Ratio and Scaling<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64076b65 auto-p elementor-widget elementor-widget-heading\" data-id=\"64076b65\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A 600\/5 A CT has a ratio of 120:1. If a suitable test instrument measures 2.5 A secondary, the corresponding primary current is 300 A.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9855efa5 auto-p elementor-widget elementor-widget-heading\" data-id=\"9855efa5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\"><strong>Primary current = secondary current \u00d7 CT ratio<\/strong><\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e37fb49 auto-p elementor-widget elementor-widget-heading\" data-id=\"1e37fb49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A meter configured for 600\/1 A on that 600\/5 A circuit produces a fixed-factor error. A similar error appears when the meter already publishes primary amperes and the EMS multiplies the register again.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f341a60 auto-p elementor-widget elementor-widget-heading\" data-id=\"6f341a60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Put the nameplate ratio beside the meter setting, protocol unit and EMS multiplier. The burden calculation also includes secondary cables, terminals, test blocks and any instruments connected in series. Long secondary runs deserve attention because excess burden adds ratio and phase error.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef8eff51 auto-h3 elementor-widget elementor-widget-heading\" data-id=\"ef8eff51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Polarity and Terminal Markings<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ee84507 auto-p elementor-widget elementor-widget-heading\" data-id=\"6ee84507\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">CTs may use P1\/P2 and S1\/S2, H1\/H2 and X1\/X2, K\/L and k\/l, or an arrow. Follow the installed manufacturer's diagram and the approved project drawing. Cable colours do not prove polarity.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14a8a399 auto-p elementor-widget elementor-widget-heading\" data-id=\"14a8a399\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Do not leave an energized conventional CT secondary open. Schneider Electric's meter documentation also requires CT secondary grounding in accordance with the equipment instructions and warns against using a meter display to prove that a circuit is de-energized. Qualified electrical personnel must use the approved isolation, shorting and test arrangements. The <a href=\"https:\/\/www.productinfo.schneider-electric.com\/iem3100_iem3200_iem3300\/iem3100_iem3200_iem3300-series_user-manual\/iEM3100_iEM3200_iEM3300%20series_User%20Manual\/English\/DOCA0005EN-15.pdf\" target=\"_blank\" rel=\"noopener\" style=\"color:#61CE70\">manufacturer safety manual<\/a> controls the work method.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c3c7d32 auto-h3 elementor-widget elementor-widget-heading\" data-id=\"9c3c7d32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Phase Association<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b92a7b8 auto-p elementor-widget elementor-widget-heading\" data-id=\"4b92a7b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Each current channel needs the voltage from the same phase. Current from L1 paired with L2 voltage can show a believable current magnitude while active power, reactive power and power factor become wrong. When one phase contributes negative power, the three-phase total may still look plausible.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41542158 auto-p elementor-widget elementor-widget-heading\" data-id=\"41542158\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Check voltage, current, active power, reactive power, power factor and phase angle per phase. A phasor display helps locate swapped phases and reversed current direction. Schweitzer Engineering Laboratories lists phasor display as a commissioning tool for verifying CT polarity and phasing in its <a href=\"https:\/\/selinc.com\/api\/download\/2818\/\" target=\"_blank\" rel=\"noopener\" style=\"color:#61CE70\">SEL-787 documentation<\/a>. The project meter or power-quality analyzer can provide the same comparison when it supports a phasor view.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15f1fa6b auto-h2 elementor-widget elementor-widget-heading\" data-id=\"15f1fa6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Pair Secondary Injection With a Live Direction Test<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbaec8e4 auto-p elementor-widget elementor-widget-heading\" data-id=\"cbaec8e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Secondary injection checks the downstream circuit without relying on facility load. Known current and voltage quantities confirm meter input scaling, phase assignment, active-power sign, register mapping and the value received by the EMS.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f2c7b00 auto-p elementor-widget elementor-widget-heading\" data-id=\"2f2c7b00\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Secondary injection leaves the primary conductor direction untested. Placing the leads close to the meter may also bypass field terminals and cable runs. Mark the injection point and the portion of the circuit covered by the test.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09b51910 auto-p elementor-widget elementor-widget-heading\" data-id=\"09b51910\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">An end-to-end live test closes the remaining gap:<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec947d5d elementor-widget-mobile__width-inherit auto-list elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"ec947d5d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">1. Establish a stable facility load or controlled primary-current condition.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">2. Compare each phase with a calibrated reference instrument.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">3. Record the baseline PCC power and meter quality state.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">4. Issue a small BESS charge command and return to zero.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">5. Issue a small discharge command of similar magnitude.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">6. Compare command, PCS power and PCC movement on one time base.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-circle\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">7. Interrupt the selected meter signal and observe the timeout, alarm, fallback and recovery.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99800245 auto-image elementor-widget elementor-widget-image\" data-id=\"99800245\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"900\" height=\"675\" src=\"https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-Power-Direction-Test.png\" class=\"attachment-1536x1536 size-1536x1536 wp-image-5192\" alt=\"Engineer comparing three-phase CT readings with synchronized PCC and BESS power trends during commissioning\" srcset=\"https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-Power-Direction-Test.png 900w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-Power-Direction-Test-300x225.png 300w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-Power-Direction-Test-768x576.png 768w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-Power-Direction-Test-16x12.png 16w, https:\/\/www.solidess.com\/wp-content\/uploads\/2026\/09\/BESS-Power-Direction-Test-600x450.png 600w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5431ce65 auto-p elementor-widget elementor-widget-heading\" data-id=\"5431ce65\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The first command only has to stand clear of normal load movement and meter resolution. On one site that may be 10 kW; on another, 20 kW still disappears inside production swings. The procedure sets a workable value from the actual load profile, available battery power and test conditions.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-354937b0 auto-p elementor-widget elementor-widget-heading\" data-id=\"354937b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">For MegSolid systems connected to third-party switchgear and meters, the interface review can align CT direction, protocol scaling and the approved fallback before automatic control is released.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0f6dfeb elementor-tablet-align-center elementor-align-center auto-cta elementor-widget elementor-widget-button\" data-id=\"d0f6dfeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6Ijk0OCIsInRvZ2dsZSI6ZmFsc2V9\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact MegSolid About PCC Metering Integration<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be3bad58 auto-h2 elementor-widget elementor-widget-heading\" data-id=\"be3bad58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Put Every Test Trend on One Time Base<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f47345a auto-p elementor-widget elementor-widget-heading\" data-id=\"2f47345a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">A PCC meter may publish an averaged result after the PCS has reacted. When the EMS, meter and SCADA clocks differ, the exported trend can pair a command with the wrong response. That can send the team back to wiring that was correct all along.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62fcd807 auto-p elementor-widget elementor-widget-heading\" data-id=\"62fcd807\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Before the live step, compare the displayed time on the meter, PCS, EMS and historian. Record the time source and synchronization status for every device. NTP, SNTP, PTP, GPS and local site clocks appear in industrial systems; the required method depends on equipment capability and test resolution.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e703ce47 auto-p elementor-widget elementor-widget-heading\" data-id=\"e703ce47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Clock tolerance depends on the control response, meter update rate and evidence resolution. The procedure states the permitted difference, sampling interval, averaging window and time zone. A known event should appear at the expected time in every record. If analysis applies a time correction, the report keeps both the original timestamp and the adjustment.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55142f53 auto-p elementor-widget elementor-widget-heading\" data-id=\"55142f53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">\u0627\u0644\u0640 <strong><a href=\"https:\/\/www.solidess.com\/ar\/%d9%82%d8%a7%d8%a6%d9%85%d8%a9-%d9%86%d9%82%d8%a7%d8%b7-%d8%b3%d9%83%d8%a7%d8%af%d8%a7-%d9%84%d9%86%d8%b8%d8%a7%d9%85-%d8%aa%d8%ae%d8%b2%d9%8a%d9%86-%d8%a7%d9%84%d8%b7%d8%a7%d9%82%d8%a9-%d8%a8%d8%a7\/\" target=\"_blank\" style=\"color:#61ce70\">\u0642\u0627\u0626\u0645\u0629 \u0646\u0642\u0627\u0637 \u0646\u0638\u0627\u0645 BESS SCADA<\/a><\/strong> should use the same tag names, units and quality fields as the commissioning trace. The <strong><a href=\"https:\/\/www.solidess.com\/ar\/%d8%a8%d9%86%d9%8a%d8%a9-%d8%a7%d8%aa%d8%b5%d8%a7%d9%84%d8%a7%d8%aa-%d9%86%d8%b8%d8%a7%d9%85-%d8%a5%d8%af%d8%a7%d8%b1%d8%a9-%d8%a7%d9%84%d8%a8%d8%b7%d8%a7%d8%b1%d9%8a%d8%a9-bms-%d9%88%d9%86%d8%b8\/\" target=\"_blank\" style=\"color:#61ce70\">\u0628\u0646\u064a\u0629 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u0623\u0646\u0638\u0645\u0629 \u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0629 (BMS) \u0648\u0623\u0646\u0638\u0645\u0629 \u0625\u062f\u0627\u0631\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 (EMS)<\/a><\/strong> explains which limits remain local when the PCC signal becomes stale or disappears.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c06d050 auto-h2 elementor-widget elementor-widget-heading\" data-id=\"1c06d050\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Diagnose the Pattern Before Changing the Wiring<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1631152f auto-p elementor-widget elementor-widget-heading\" data-id=\"1631152f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Capture per-phase values before moving wires or changing software. The pattern usually narrows the fault faster than the total kW value.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77f64adb auto-table elementor-widget elementor-widget-text-editor\" data-id=\"77f64adb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"cea-table-wrap\"><table><thead><tr><th>Result at site<\/th><th>Check first<\/th><th>Evidence needed after correction<\/th><\/tr><\/thead><tbody><tr><td>All three phase powers are negative during known grid import<\/td><td>CT orientation or overall meter sign<\/td><td>Physical orientation record and positive import on the agreed convention<\/td><\/tr><tr><td>One phase is negative while two are positive<\/td><td>One reversed CT or wrong voltage\/current pairing<\/td><td>Corrected per-phase phasor and power record<\/td><\/tr><tr><td>Current and kW differ by a steady factor<\/td><td>CT primary\/secondary setting, 1 A\/5 A input or duplicate multiplier<\/td><td>Nameplate, settings and reference-current comparison<\/td><\/tr><tr><td>Total kW is near zero under a substantial balanced load<\/td><td>Phase contributions cancelling<\/td><td>Per-phase sign and phase-angle check<\/td><\/tr><tr><td>Power factor looks implausible while current is normal<\/td><td>Voltage phase mapped to the wrong current channel<\/td><td>Confirmed voltage\/current pairing<\/td><\/tr><tr><td>PCS responds but the PCC changes later or barely moves<\/td><td>Wrong boundary, moving site load or timestamp mismatch<\/td><td>Synchronized controlled step with meter location shown<\/td><\/tr><tr><td>Peak-shaving power hunts around the target<\/td><td>Signal delay, duplicated filtering, sign error or unsuitable deadband<\/td><td>Raw update timing and stable closed-loop trend<\/td><\/tr><tr><td>Meter display and EMS value disagree<\/td><td>Register, byte order, unit or scaling map<\/td><td>Side-by-side display, register and EMS comparison<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8b5c3a7 auto-p elementor-widget elementor-widget-heading\" data-id=\"d8b5c3a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Negative active power may mean real export, reversed CT polarity or an inverted software convention. After each change, repeat the same controlled step and keep the failed trace beside the corrected one.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62c873d1 auto-h2 elementor-widget elementor-widget-heading\" data-id=\"62c873d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Where the ESSA Cabinet Ends and Site Metering Begins<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf27d615 auto-p elementor-widget elementor-widget-heading\" data-id=\"cf27d615\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">In the 420 kW factory example, the ESSA0100B-0215 connects to an existing 400 V main board for peak shaving. Its published 100 kW rated AC power and 215.04 kWh nominal energy describe the cabinet. PCC location, CT orientation and site-meter scaling remain part of the installed electrical system.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8895e411 auto-p elementor-widget elementor-widget-heading\" data-id=\"8895e411\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Per-phase inspection finds negative active power on all three incomer phases under known grid import. The nameplate ratios match the programmed values, which moves attention to physical orientation. The CT arrows oppose the direction shown on the approved drawing.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d1c18d8 auto-p elementor-widget elementor-widget-heading\" data-id=\"9d1c18d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The electrical team corrects the CT orientation under the approved isolation procedure. Repeating the 20 kW discharge step now moves PCC import towards 400 kW, and a charge step moves it upward. The figures illustrate direction only. Site-load movement, losses, meter accuracy and sampling delay set the actual comparison band.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-297f3df8 auto-table elementor-widget elementor-widget-text-editor\" data-id=\"297f3df8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"cea-table-wrap\"><table><thead><tr><th>Test state<\/th><th>Cabinet-side result<\/th><th>Expected PCC movement with stable load<\/th><\/tr><\/thead><tbody><tr><td>Zero command<\/td><td>Active power inside the defined zero band<\/td><td>Baseline import<\/td><\/tr><tr><td>Controlled charge<\/td><td>Battery absorbs AC power<\/td><td>Import rises<\/td><\/tr><tr><td>Controlled discharge<\/td><td>Battery supplies AC power<\/td><td>Import falls<\/td><\/tr><tr><td>Meter data stale or missing<\/td><td>EMS follows the approved fallback<\/td><td>Alarm, data-quality state and recovery are recorded<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e600a2c1 auto-p elementor-widget elementor-widget-heading\" data-id=\"e600a2c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">\u0627\u0644\u0640 <strong><a href=\"https:\/\/www.solidess.com\/ar\/bess-site-acceptance-test-checklist\/\" target=\"_blank\" style=\"color:#61ce70\">BESS site acceptance test procedure<\/a><\/strong> carries the corrected metering result into the wider site release. It should reference the same meter, CT set, settings file and trend.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf062d04 auto-h2 elementor-widget elementor-widget-heading\" data-id=\"bf062d04\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Where the Metering PASS Ends<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ba6afb3 auto-p elementor-widget elementor-widget-heading\" data-id=\"2ba6afb3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">An end-to-end metering PASS covers the named measurement chain under the stated test method. Capacity acceptance has a separate SOC window, power setpoint, temperature basis, auxiliary treatment and AC measurement point. Power-quality testing uses its own analyzer placement and operating conditions. A later reliability run records alarms, curtailment and availability.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed6004b2 auto-p elementor-widget elementor-widget-heading\" data-id=\"ed6004b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">\u0627\u0644\u0640 <strong><a href=\"https:\/\/www.solidess.com\/ar\/%d8%a7%d8%ae%d8%aa%d8%a8%d8%a7%d8%b1-%d8%b3%d8%b9%d8%a9-%d8%a3%d9%86%d8%b8%d9%85%d8%a9-%d8%aa%d8%ae%d8%b2%d9%8a%d9%86-%d8%a7%d9%84%d8%b7%d8%a7%d9%82%d8%a9-%d8%a7%d9%84%d8%aa%d8%ac%d8%a7%d8%b1%d9%8a\/\" target=\"_blank\" style=\"color:#61ce70\">\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629 \u0644\u0623\u0646\u0638\u0645\u0629 \u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0637\u0627\u0642\u0629 \u0628\u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0627\u062a (BESS)<\/a><\/strong> covers the energy calculation. A later meter replacement, CT change or EMS remapping reopens the affected metering tests even when the battery hardware remains unchanged.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf58533c auto-p elementor-widget elementor-widget-heading\" data-id=\"bf58533c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">At handover, the operator needs three matching references: <strong>the identified PCC meter and CT set, the approved settings and software record, and the signed end-to-end metering test.<\/strong><\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d008bde6 auto-p elementor-widget elementor-widget-heading\" data-id=\"d008bde6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The cabinet-side signal and the released operating mode should match those three references.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2690bf10 elementor-tablet-align-center elementor-align-center auto-cta elementor-widget elementor-widget-button\" data-id=\"2690bf10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6Ijk0OCIsInRvZ2dsZSI6ZmFsc2V9\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact MegSolid About BESS Metering Commissioning<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e8f4e829 auto-faq e-flex e-con-boxed e-con e-child\" data-id=\"e8f4e829\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e6559ae5 elementor-widget elementor-widget-heading\" data-id=\"e6559ae5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f736ef91 e-con-full e-flex e-con e-child\" data-id=\"f736ef91\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f9a2363 elementor-widget elementor-widget-n-accordion\" data-id=\"0f9a2363\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"\u0627\u0644\u0623\u0643\u0648\u0631\u062f\u064a\u0648\u0646. \u0627\u0641\u062a\u062d \u0627\u0644\u0631\u0648\u0627\u0628\u0637 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u062a\u0627\u062d \u0627\u0644\u0625\u062f\u062e\u0627\u0644 (Enter) \u0623\u0648 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 (Space)\u060c \u0648\u0623\u063a\u0644\u0642 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u062a\u0627\u062d \u0627\u0644\u0647\u0631\u0648\u0628 (Escape)\u060c \u0648\u062a\u0648\u0643\u0644 \u0639\u0628\u0631 \u0645\u0641\u0627\u062a\u064a\u062d \u0627\u0644\u0623\u0633\u0647\u0645\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2610\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2610\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 1. What happens if BESS CT polarity is reversed? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2610\" class=\"elementor-element elementor-element-bfeaa67f e-con-full e-flex e-con e-child\" data-id=\"bfeaa67f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2610\" class=\"elementor-element elementor-element-5f4c490d e-con-full e-flex e-con e-child\" data-id=\"5f4c490d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1182b94e elementor-widget elementor-widget-heading\" data-id=\"1182b94e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Current magnitude may look normal while active power carries the opposite sign. A peak-shaving or zero-export controller can then drive the command the wrong way. Hold the run and trace the direction from the CT markings through to the EMS tag.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2611\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2611\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 2. Can reversed CT polarity make grid import rise during BESS discharge? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2611\" class=\"elementor-element elementor-element-b4fbbf25 e-con-full e-flex e-con e-child\" data-id=\"b4fbbf25\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2611\" class=\"elementor-element elementor-element-178e7024 e-con-full e-flex e-con e-child\" data-id=\"178e7024\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc597290 elementor-widget elementor-widget-heading\" data-id=\"cc597290\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Yes. The PCS can deliver the requested discharge while the PCC meter or EMS reports it with the opposite sign. Repeat a small charge and discharge step under a steady load and watch which way grid import moves.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2612\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2612\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 3. How should CT polarity be checked safely? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2612\" class=\"elementor-element elementor-element-bbec693a e-con-full e-flex e-con e-child\" data-id=\"bbec693a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2612\" class=\"elementor-element elementor-element-d4711187 e-con-full e-flex e-con e-child\" data-id=\"d4711187\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9114e300 elementor-widget elementor-widget-heading\" data-id=\"9114e300\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Qualified electrical personnel must work to the CT and meter manuals, the site isolation procedure and local electrical rules. An energized conventional CT secondary must stay closed through the specified shorting or test arrangement. The live-direction check follows after the circuit is restored safely.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2613\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2613\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 4. Does secondary injection prove the installed CT direction? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2613\" class=\"elementor-element elementor-element-7e337417 e-con-full e-flex e-con e-child\" data-id=\"7e337417\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2613\" class=\"elementor-element elementor-element-6049a051 e-con-full e-flex e-con e-child\" data-id=\"6049a051\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6ff36b37 elementor-widget elementor-widget-heading\" data-id=\"6ff36b37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Secondary injection covers the downstream inputs, scaling, phase mapping, registers and communications included from the injection point. Primary direction through the CT then comes from a primary or controlled live-load test of the installed path.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2614\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2614\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 5. How is a CT ratio error found during BESS commissioning? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2614\" class=\"elementor-element elementor-element-b0ce7827 e-con-full e-flex e-con e-child\" data-id=\"b0ce7827\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2614\" class=\"elementor-element elementor-element-7fcdad02 e-con-full e-flex e-con e-child\" data-id=\"7fcdad02\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2301597 elementor-widget elementor-widget-heading\" data-id=\"f2301597\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Start with the CT nameplate and the meter's primary and secondary settings. Then check the 1 A or 5 A input, protocol units and EMS multiplier against a known current on each phase. A fixed multiplier error usually points to the ratio or double scaling.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2615\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"6\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2615\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 6. What is a CT phase-association error? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2615\" class=\"elementor-element elementor-element-f5cc39f0 e-con-full e-flex e-con e-child\" data-id=\"f5cc39f0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2615\" class=\"elementor-element elementor-element-fcb94d52 e-con-full e-flex e-con e-child\" data-id=\"fcb94d52\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-157b4347 elementor-widget elementor-widget-heading\" data-id=\"157b4347\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The meter is using current from one phase with voltage from another. Amperes can still look believable, but kW, kvar, power factor and phase angle will disagree. Per-phase readings or a phasor view make the mismatch easier to spot.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2616\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"7\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2616\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 7. Where should the PCC meter sit for whole-site peak shaving? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2616\" class=\"elementor-element elementor-element-5d8d8c6f e-con-full e-flex e-con e-child\" data-id=\"5d8d8c6f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2616\" class=\"elementor-element elementor-element-7b7c9a2e e-con-full e-flex e-con e-child\" data-id=\"7b7c9a2e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-25026a01 elementor-widget elementor-widget-heading\" data-id=\"25026a01\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">For whole-site control, the meter normally sits where it sees the grid exchange of all relevant loads, PV and BESS feeders. The single-line diagram fixes the exact point. A meter installed only on the battery feeder reports cabinet power, not total site import.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2617\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"8\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2617\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 8. Why do the PCC meter and PCS meter show different power? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2617\" class=\"elementor-element elementor-element-0e3f434f e-con-full e-flex e-con e-child\" data-id=\"0e3f434f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2617\" class=\"elementor-element elementor-element-3091b9bd e-con-full e-flex e-con e-child\" data-id=\"3091b9bd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-25cd962d elementor-widget elementor-widget-heading\" data-id=\"25cd962d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The two meters sit at different electrical points. Loads between them, transformer and cable losses, auxiliaries, accuracy and sample timing all change the comparison. The test defines the expected difference for the installed arrangement.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2618\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"9\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2618\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 9. What time-synchronization tolerance should the test use? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2618\" class=\"elementor-element elementor-element-cbc98b06 e-con-full e-flex e-con e-child\" data-id=\"cbc98b06\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2618\" class=\"elementor-element elementor-element-f80b1e0d e-con-full e-flex e-con e-child\" data-id=\"f80b1e0d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a82d9c5 elementor-widget elementor-widget-heading\" data-id=\"4a82d9c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Set the tolerance from the control response, meter update rate, averaging interval and trend resolution. The result also needs the time source, time zone and measured offset. A fast zero-export loop and a slow energy trend will not use the same timing limit.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2619\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"10\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2619\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 10. Can a meter show plausible values and still be wired incorrectly? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2619\" class=\"elementor-element elementor-element-971d9215 e-con-full e-flex e-con e-child\" data-id=\"971d9215\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2619\" class=\"elementor-element elementor-element-0fa89405 e-con-full e-flex e-con e-child\" data-id=\"0fa89405\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b9faf9a elementor-widget elementor-widget-heading\" data-id=\"3b9faf9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Yes. Two correct phases can mask one reversed phase, and a bad voltage\/current pairing can still produce believable amperes. Read voltage, current, kW, kvar, power factor and phase angle phase by phase before trusting the total.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-26110\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"11\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-26110\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 11. What belongs in the BESS metering commissioning record? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-26110\" class=\"elementor-element elementor-element-6f8052cf e-con-full e-flex e-con e-child\" data-id=\"6f8052cf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-26110\" class=\"elementor-element elementor-element-6331a51e e-con-full e-flex e-con e-child\" data-id=\"6331a51e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f44a0ad0 elementor-widget elementor-widget-heading\" data-id=\"f44a0ad0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The record identifies the meter location and serial number, CT set and ratio, polarity, phase pairing, voltage inputs, settings revision, register map, EMS scaling, sign convention and clock source. Add the reference measurements, raw charge\/discharge trends and signed release.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-26111\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"12\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-26111\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 12. Does a BESS metering PASS prove usable AC kWh? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-26111\" class=\"elementor-element elementor-element-480e3434 e-con-full e-flex e-con e-child\" data-id=\"480e3434\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-26111\" class=\"elementor-element elementor-element-61fdeaaf e-con-full e-flex e-con e-child\" data-id=\"61fdeaaf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b7f2b56b elementor-widget elementor-widget-heading\" data-id=\"b7f2b56b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">No. The metering result confirms the named measurement chain. A usable-energy test still sets its SOC endpoints, AC boundary, power level, temperature basis, auxiliary treatment, sample interval and calculation method.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-26112\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"13\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-26112\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> 13. How does the ESSA0100B-0215 fit the metering test? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-26112\" class=\"elementor-element elementor-element-353cf8f2 e-con-full e-flex e-con e-child\" data-id=\"353cf8f2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-26112\" class=\"elementor-element elementor-element-9bf1af50 e-con-full e-flex e-con e-child\" data-id=\"9bf1af50\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5e9b9bf7 elementor-widget elementor-widget-heading\" data-id=\"5e9b9bf7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">The cabinet brings a 400 V interface and 100 kW rated AC power to the project. The site test then covers the external PCC meter, CTs, switchboard connection, EMS mapping and closed-loop response installed around it.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0625\u062c\u0631\u0627\u0621 \u0645\u064a\u062f\u0627\u0646\u064a \u0644\u0641\u062d\u0635 \u0633\u0644\u0633\u0644\u0629 \u0642\u064a\u0627\u0633 \u0646\u0638\u0627\u0645 \u062a\u062e\u0632\u064a\u0646 \u0627\u0644\u0637\u0627\u0642\u0629 \u0628\u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0627\u062a (BESS) \u0628\u0627\u0644\u0643\u0627\u0645\u0644\u060c \u0628\u062f\u0621\u064b\u0627 \u0645\u0646 \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u062d\u0648\u0644 \u0627\u0644\u062d\u0627\u0644\u064a (CT) \u0648\u0646\u0633\u0628\u062a\u0647 \u0648\u0635\u0648\u0644\u0627\u064b \u0625\u0644\u0649 \u0631\u0633\u0645 \u062e\u0631\u0627\u0626\u0637 \u0627\u0644\u0637\u0648\u0631\u060c \u0648\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0625\u0634\u0627\u0631\u0629\u060c \u0648\u0645\u0648\u0627\u0621\u0645\u0629 \u0627\u0644\u062a\u0648\u0642\u064a\u062a.<\/p>","protected":false},"author":4,"featured_media":5190,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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