{"product_id":"ge-multilin-ur-8ah-ur8ah-ur-series-ct-vt-module","title":"Module TC\/VT GE Multilin UR-8AH \/ UR8AH série UR","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE Multilin UR-8AH\u003c\/strong\u003e is an analog AC measurement interface module developed for the Universal Relays platform that provides \u003cstrong\u003ethree 1A\/5A Phase CTs, one 1A\/5A Ground CT, and 4 VTs\u003c\/strong\u003e to step down primary electrical grid signals into precise secondary values. This configuration allows the hosting relay chassis to sample, meter, and monitor crucial utility parameters including current, voltage, active power, energy, frequency, and circuit demand factors.\u003c\/p\u003e\n\u003cp\u003eThe primary function of the \u003cstrong\u003eUR-8AH\u003c\/strong\u003e is to act as an isolated instrument transformer interface, converting high-magnitude high-voltage system lines into lower operational signals that can be recognized and modulated by the internal processing logic. As a legacy hardware option, it is engineered to operate on legacy equipment tiers carrying firmware version 3.5x or earlier, establishing standard 4CT\/4VT matching layouts. This module provides critical safety isolation between secondary instrument circuits and ground, delivering accurate data streams used by protection loops to isolate faulted primary components. All parameter adjustments, calibration thresholds, and trend logs are interfaced using General Electric Multilin's EnerVista UR workstation software.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 4CT\/4VT Interface Layout:\u003c\/strong\u003e Features three 1A\/5A phase current inputs, one 1A\/5A ground current input, and 4 voltage transformer paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Firmware Support:\u003c\/strong\u003e Optimized for legacy UR installations running firmware version 3.5x or lower.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Accuracy Parameter Metering:\u003c\/strong\u003e Delivers secondary sensing resolution for voltage, current, power, energy, and grid frequency metrics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnerVista Software Configuration:\u003c\/strong\u003e Combines with EnerVista UR interfaces for streamlined data export, trending, and graphical parameter review.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstation Feeder Monitoring:\u003c\/strong\u003e Deployed inside traditional utility panels to capture current and voltage waveforms across key distribution circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Protective Relay Upgrades:\u003c\/strong\u003e Installed within retrofitted configurations to replace faulty analog acquisition cards in legacy UR relay groups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Electrical Plant Safeguards:\u003c\/strong\u003e Measures transformer and large electrical distribution loops to supply continuous utility data to central automation networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUR-8AH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUR Series (Universal Relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCT\/VT Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase Current Transformer Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Channels (1A\/5A Dual Rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGround Current Transformer Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Channel (1A\/5A Dual Rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Transformer Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Channels (VTs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirmware Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVersion 3.5x or earlier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration Tool\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnerVista UR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturing Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOntario, Canada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eapprox. 15cm L x 18cm W x 4cm H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 lb, 9 oz (approx. 1.16 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Circuit Isolation:\u003c\/strong\u003e Prior to removing or installing the module, disconnect and isolate all primary and secondary power lines from the relay case. Short-circuit all external CT secondary lines to avoid high-voltage transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic Grounding Procedures:\u003c\/strong\u003e Technicians must utilize a grounded ESD wrist strap when inserting or removing this analog instrumentation card to safeguard embedded analog-to-digital processing components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCPU Hardware Co-linking:\u003c\/strong\u003e Ensure this legacy card is paired with compatible legacy processing components such as the UR-9A, UR-9C, or UR-9D CPU cards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Attachment:\u003c\/strong\u003e Slide the assembly straight along the dedicated enclosure chassis guide slots until the analog terminal headers align properly with the rear backplane assembly. Fasten faceplate locking screws tightly.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52695412277611,"sku":"UR-8AH","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/general-electric-ur8ah-universal-relays-module-hnas23wuwqk_2a2f99a2-ecce-4d41-8610-e1ece8b96dce.jpg?v=1766135105","url":"https:\/\/www.plcprotech.com\/fr\/products\/ge-multilin-ur-8ah-ur8ah-ur-series-ct-vt-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}