{"product_id":"1mrk002810-ab-red670-abb-765kv-current-differential-relay","title":"1MRK002810-AB RED670 ABB 765kV Current Differential Relay","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe ABB RED670 (Order Number 1MRK002810-AB) serves as a high-performance Intelligent Electronic Device (IED) engineered for the current differential protection (87L) of overhead transmission lines and underground utility cables. Part of the elite Relion 670 series, this unit delivers ultra-fast, phase-segregated protection for complex power grid topologies up to 765 kV, including multi-terminal lines and meshed networks. By evaluating time-synchronized current measurements from all ends of the protected terminal zone, it pinpoints internal faults with absolute selectivity.\u003c\/p\u003e\n\u003cp\u003eWe guarantee this system component arrives 100% Brand New, factory-original, and ready to secure high-voltage utility assets with advanced digital substation communications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eABB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRED670\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrder Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1MRK002810-AB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRelion 670\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePrimary Protection Function\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLine Current Differential Protection (ANSI 87L)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Voltage Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePower Grids Up to 765 kV\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAnalog Current Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1A or 5A (Software Configurable)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMeasurement Accuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClass 0.2 percent of Nominal Current and Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTypical Operation Trip Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLess than 25 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtocol Suites\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIEC 61850 Edition 1 and 2, DNP3, Modbus RTU\/TCP, IEC 60870-5-103\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Hardware\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual 100 Mbps Ethernet Interfaces (ST or LC Fiber Options)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDifferential Channel Media\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDedicated Fiber-Optic Link or Multiplexed IEEE C37.94\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTime Sync Standards\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePTP (IEEE 1588), IRIG-B, SNTP, Integrated GPS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAuxiliary Supply Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUniversal 24 to 250 VDC \/ 100 to 240 VAC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChassis Dimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard 19-Inch Rack Mount, 6U Vertical Height\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIngress Protection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP54 Front Panel \/ IP20 Rear Case Housing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to +55 degrees C Continuous Environment\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResolves Complex Topology Blind Spots:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe phase-segregated current differential algorithm evaluates raw local and remote vector data simultaneously. This direct method maintains absolute protection sensitivity across meshed lines and multi-terminal systems where traditional distance relays fail due to variable source impedances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrates Seamlessly into Digital Substation Buses:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNative implementation of IEC 61850 Edition 2 allows the relay to broadcast high-speed GOOSE messages and interface directly with process-bus Sampled Values. This integration cuts out copper hard-wiring and accelerates inter-tripping times across the yard.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNeutralizes Current Transformer (CT) Saturation Risks:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced internal stabilization logic detects external through-fault currents that saturate physical CT cores. The module dynamically restrains tripping functions during external events, avoiding accidental power outages while remaining fully active for internal faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConsolidates Complete Bay Protection Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis IED combines primary line differential protection with comprehensive backup functions, including four-step directional overcurrent, full distance protection, breaker failure logic, and multi-shot autoreclosing with built-in synchro-check. This high functional density shrinks total panel space demands.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the RED670 synchronize current samples across remote line ends?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1MRK002810-AB relies on strict microsecond time synchronization to run its differential comparison algorithms. It can calculate channel propagation delays dynamically through dedicated fiber links using echo methods, or sync directly to absolute time via Precision Time Protocol (IEEE 1588 PTP), GPS clock receivers, or IRIG-B inputs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I reconfigure the current input channels from 1A to 5A while the unit is mounted in the panel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The current input circuits support both standard 1A and 5A CT secondary ratings. You configure this selection via the PCM600 Protection and Control IED Manager software package; it requires no manual physical wiring modifications inside the terminal terminal array.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat redundancy layout options does the dual fiber-optic network design support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe dual 100 Mbps fiber ports accommodate redundant station bus topologies using standard Parallel Redundancy Protocol (PRP) or High-availability Seamless Redundancy (HSR) architectures. This configuration ensures that the substation automation platform loses zero data frames if a network switch or individual fiber cable fails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":42870827122778,"sku":"RED670 1MRKO02810-AB","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/110.1_d7afe791-4a04-4027-89e7-8ed57316ab60.jpg?v=1771895712","url":"https:\/\/www.spareoil.com\/products\/1mrk002810-ab-red670-abb-765kv-current-differential-relay","provider":"SpareOil Automation","version":"1.0","type":"link"}