{"product_id":"ge-345-e-p5-g5-h-e-s-n-n-sn-d-n-transformer-protection-relay","title":"GE 345-E-P5-G5-H-E-S-N-N-SN-D-N Transformer Protection Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE 345-E-P5-G5-H-E-S-N-N-SN-D-N\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e345\u003c\/strong\u003e Transformer Protection Relay, operates as a dedicated hardware component for primary current differential protection and feeder management within electrical substation automation networks.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode Segment\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e345\u003c\/td\u003e\n\u003ctd\u003eBase model (345 Transformer Protection System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003eEnglish language display option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP5\u003c\/td\u003e\n\u003ctd\u003e5A Phase current input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG5\u003c\/td\u003e\n\u003ctd\u003e5A Ground current input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003ctd\u003eHigh-voltage power supply (110-250 VDC \/ 110-230 VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003eStandard Ethernet \/ RS485 communication baseline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003eStandard I\/O (10 contact inputs, 2 Form A \u0026amp; 5 Form C outputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eN \/ N\u003c\/td\u003e\n\u003ctd\u003eNon-sensitive ground \/ Reserved hardware code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSN\u003c\/td\u003e\n\u003ctd\u003eStandard neutral configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003eDrawout case design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eN\u003c\/td\u003e\n\u003ctd\u003eNone (No additional environmental coating options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware 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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e345-E-P5-G5-H-E-S-N-N-SN-D-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCanada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard 345 series drawout relay weight (~4.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 345 drawout case dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eHigh-voltage supply: 110-250 VDC \/ 110-230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase \/ Ground Inputs\u003c\/td\u003e\n\u003ctd\u003e5A CT inputs (Three-phase and ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiscrete I\/O\u003c\/td\u003e\n\u003ctd\u003e10 contact inputs, 2 Form A outputs, 5 Form C outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Construction\u003c\/td\u003e\n\u003ctd\u003eDrawout unit design for rapid rack mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial \/ Local Interfaces\u003c\/td\u003e\n\u003ctd\u003eFront USB port, rear RS485 serial port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eModbus RTU, DNP3.0, IEC 60870-5-103\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Elements\u003c\/td\u003e\n\u003ctd\u003ePercent differential, neutral\/phase\/ground\/negative time and instantaneous overcurrent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Networks and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe relay incorporates high-density I\/O density scaling alongside high-speed microprocessor execution to maintain real-time current differential and time-overcurrent protection loops. Communication buses link via RS485 and USB interfaces, supporting deterministic field data acquisition across Modbus RTU, DNP3.0, and IEC 60870-5-103 protocols. Internal firmware flash memory maintains millisecond-accurate event recording for up to 256 events, while firmware flash compatibility allows field updating without disrupting drawout wiring connections.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many event logs can the 345-E-P5-G5-H-E-S-N-N-SN-D-N maintain simultaneously?\u003c\/p\u003e\n\u003cp\u003eA: The relay stores up to 256 time-stamped events with millisecond resolution in non-volatile memory for diagnostic fault analysis.\u003c\/p\u003e\n\u003cp\u003eQ: What operational advantage does the drawout case design (D suffix) offer?\u003c\/p\u003e\n\u003cp\u003eA: The drawout unit construction allows engineers to extract the internal processing chassis without disconnecting backplane CT shorting blocks or secondary field wiring, minimizing maintenance downtime.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify that current transformer (CT) secondary circuits are properly shorted before withdrawing the relay unit from its drawout case.\u003c\/li\u003e\n\u003cli\u003eConfirm that the auxiliary control power voltage matches the rated high-voltage supply range of 110-250 VDC or 110-230 VAC prior to energization.\u003c\/li\u003e\n\u003cli\u003eGround the relay chassis enclosure using a dedicated low-impedance copper earth strap attached directly to the station grounding bus.\u003c\/li\u003e\n\u003cli\u003eSet up role-based security passwords during commissioning to prevent unauthorized modification of protective setpoints over the RS485 or USB interfaces.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":45368490492019,"sku":null,"price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/745-W2-WP5-G5-HI_1.jpg?v=1786949523","url":"https:\/\/www.dcssupplier.com\/ar\/products\/ge-345-e-p5-g5-h-e-s-n-n-sn-d-n-transformer-protection-relay","provider":"DcsSupplier Limited","version":"1.0","type":"link"}