{"product_id":"ur8lh-ge-multilin-ur-8lh-universal-relay-ct-vt-module","title":"UR8LH GE Multilin UR-8LH Universal Relay CT\/VT Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eUR-8LH (UR8LH)\u003c\/strong\u003e is a high-performance current transformer and voltage transformer (CT\/VT) interface module developed for the General Electric Universal Relay (UR) series. This module functions as the primary analog input interface, scaling down high-voltage and high-current grid values into precise, low-level signals that the internal relay processing unit can safely analyze. It features an integrated architecture providing 4CT and 4VT channels along with enhanced diagnostic capabilities. The \u003cstrong\u003eUR-8LH\u003c\/strong\u003e continuously verifies analog signal integrity through an embedded hardware algorithm, enabling immediate detection of signal anomalies to ensure substation protection system reliability. System operators can monitor live metering values, ratios, and diagnostic data locally via the relay front faceplate liquid-crystal display or remotely through the EnerVista UR software suite.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProvides a combined 4CT and 4VT channel configuration within a single slot module.\u003c\/li\u003e\n\u003cli\u003eFeatures enhanced diagnostic algorithms for real-time validation of analog signal integrity.\u003c\/li\u003e\n\u003cli\u003eSupports standard 3-phase current monitoring plus dedicated ground current detection.\u003c\/li\u003e\n\u003cli\u003eDelivers seamless integration with the GE Multilin Universal Relay architecture.\u003c\/li\u003e\n\u003cli\u003eEnables high-precision scaling of hazardous system current and voltage levels for safe relay calculation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUtility and industrial substation protection and control systems.\u003c\/li\u003e\n\u003cli\u003eThree-phase feeder, transmission line, and transformer monitoring.\u003c\/li\u003e\n\u003cli\u003eHigh-reliability power system automated diagnostic architectures.\u003c\/li\u003e\n\u003cli\u003eRetrofitting and upgrading existing GE Universal Relay hardware configurations.\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\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUR-8LH (UR8LH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct 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\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGE Multilin and GE Grid Solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUR 8LH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase CTs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 channels, 1A\/5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGround CTs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 channel, 1A\/5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVTs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2lb, 9oz\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\u003eModule Insertion:\u003c\/strong\u003e Ensure the Universal Relay chassis is completely powered down before inserting or replacing the module to prevent damage to internal backplane connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCT Secondary Circuiting:\u003c\/strong\u003e Never open-circuit a current transformer secondary circuit while the primary side is energized. Ensure all CT blocks are shorted securely prior to removing wiring or the module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Integrity:\u003c\/strong\u003e Route analog input signals through shielded twisted-pair cables to mitigate the effects of electromagnetic interference (EMI) and radio frequency interference (RFI) common in high-voltage substations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftware Configuration:\u003c\/strong\u003e Following physical installation, connect via EnerVista UR software to map the new hardware matrix and verify that the ratio settings match the primary instrument transformers.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52695416242539,"sku":"UR-8LH","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ge-ur8lh-multilin-ct-vt-module-nga1gbhwuz4_79f63da9-e1e3-429a-83d7-fdce34473c8f.jpg?v=1766135258","url":"https:\/\/www.plcprotech.com\/products\/ur8lh-ge-multilin-ur-8lh-universal-relay-ct-vt-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}