{"product_id":"ge-multilin-ur7dh-inter-relay-communications-module-ur-series-protection","title":"GE Multilin UR7DH Inter-Relay Communications Module | UR Series Protection","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGE UR7DH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an advanced inter-relay communications module designed for GE’s Universal Relay (UR) series. It delivers high-speed, reliable data transfer between relays to enable precise coordination in transmission line protection and substation automation. Engineered for utility and industrial power systems, it supports critical communication-aided schemes for fault detection and isolation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection and Control\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSupports directional comparison blocking (DCB) and unblocking (DCU) pilot schemes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSub-cycle tripping with response times typically under 16 ms for transient stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFive independent distance protection zones with mho or quadrilateral characteristics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated Digital Fault Recording (DFR) and Sequence of Events (SOE) logging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSingle-mode 1300 nm fiber optic channel with optional direct relay-to-relay connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFully compliant with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIEC 61850 Edition 2\u003c\/strong\u003e, supporting seamless substation integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports PRP (Parallel Redundancy Protocol) and HSR (High-availability Seamless Redundancy)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDNP 3.0, Modbus TCP\/IP, and IEC 60870-5-104 compatible\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMonitoring and Diagnostics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eContinuous self-health diagnostics of internal hardware and communication integrity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated Phasor Measurement Unit (PMU) compatible with IEEE C37.118\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannel health monitoring for real-time fault detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eHardware and Environmental\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePowered through the connected relay unit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperating range: -40°C to +70°C (-40°F to +158°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 6 × 7 × 1.5 inches; Weight: 0.77 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModular design allows field upgrades and easy maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh EMC immunity suitable for substation environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Summary Table\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUR7DH\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eInter-Relay Communications Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eSingle-mode 1300 nm fiber, peer-to-peer capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Speed\u003c\/td\u003e\n\u003ctd\u003eSub-cycle (~12–16 ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850, DNP 3.0, Modbus TCP\/IP, IEC 60870-5-104\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O\u003c\/td\u003e\n\u003ctd\u003eScalable, transducer support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity\u003c\/td\u003e\n\u003ctd\u003eCyberSentry™ AAA authentication (Radius, LDAP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C; high EMC tolerance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6 × 7 × 1.5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.77 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for high-voltage transmission line protection and coordination, substation automation, and wide-area monitoring in industrial and utility networks. Compatible with UR series relays for pilot-aided schemes like POTT, DCB, and DUTT.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can UR7DH integrate with other UR series relays?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it supports seamless inter-relay communication with any GE UR relay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it provide real-time diagnostics?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the unit continuously monitors channel health, hardware status, and communication integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the typical response time for protection tripping?\u003c\/strong\u003e\u003cbr\u003eA: Sub-cycle response, typically under 16 ms.\u003c\/p\u003e","brand":"GE","offers":[{"title":"Default Title","offer_id":44136026832995,"sku":"UR7DH","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/GEUR7DH-3.jpg?v=1776938224","url":"https:\/\/precisemodule.com\/products\/ge-multilin-ur7dh-inter-relay-communications-module-ur-series-protection","provider":"Precise Module Ltd.","version":"1.0","type":"link"}