{"product_id":"ge-multilin-ur-series-l90-line-current-differential-protection-relay","title":"GE Multilin UR Series L90 Line Current Differential Protection Relay","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eGE Multilin L90\u003c\/strong\u003e is a high‑performance line current differential protection relay developed by General Electric for transmission lines and cables across multiple voltage levels. It is engineered to deliver fast, secure, and reliable protection, combining advanced differential and distance protection functions with modern communication capabilities.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis relay supports synchronized sampling, adaptive restraint, and inter‑relay communication, ensuring dependable operation even under challenging network conditions. With integrated synchrophasor support and compliance with IEEE C37.118 and IEC 61850‑90‑5 standards, the \u003cstrong\u003eGE Multilin L90\u003c\/strong\u003e is suitable for utilities and industrial power systems requiring precise fault detection and system stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eModel \/ Order Number\u003c\/strong\u003e: \u003cstrong\u003eL90\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: General Electric (GE Multilin)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eType\u003c\/strong\u003e: Line Current Differential Protection Relay\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh‑speed current differential protection for transmission lines and feeders\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDistance protection with 5 zones (phase and ground)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDual‑breaker applications with single and three‑pole tripping\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdaptive restraint for internal vs. external fault discrimination\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Features\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSynchronized sampling across relays\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInter‑relay communication via fiber and multiple interfaces\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSynchrophasor (PMU) support per IEEE C37.118 (2011) and IEC 61850‑90‑5\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSensitivity Enhancements\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDynamic charging current compensation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCommunication channel asymmetry compensation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDesign\u003c\/strong\u003e: Phase‑segregated differential protection for secure high‑speed tripping\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplication Scenarios\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTransmission line protection in utility networks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCable protection across varying voltage levels\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDual‑breaker configurations requiring single or three‑pole tripping\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePower system monitoring with synchrophasor integration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: What type of protection does the GE Multilin L90 provide?\u003c\/strong\u003e  A: It offers line current differential protection, distance protection, and synchrophasor support.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Can the relay handle dual‑breaker applications?\u003c\/strong\u003e  A: Yes, it supports both single and three‑pole tripping scenarios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: How does the relay maintain sensitivity during external faults?\u003c\/strong\u003e  A: Through adaptive restraint and dynamic compensation features.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Does the L90 support synchrophasor measurements?\u003c\/strong\u003e  A: Yes, it complies with IEEE C37.118 and IEC 61850‑90‑5 standards.\u003c\/span\u003e\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52434764038453,"sku":"L90","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/L90.jpg?v=1773385172","url":"https:\/\/www.5gplc.com\/products\/ge-multilin-ur-series-l90-line-current-differential-protection-relay","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}