{"product_id":"ge-750-p5-g5-s1-hi-a20-r-e-sr750-series-feeder-management-relay","title":"GE 750-P5-G5-S1-HI-A20-R-E SR750 Series Feeder Management Relay","description":"\u003cp\u003eThe \u003cstrong\u003eGE Multilin 750-P5-G5-S1-HI-A20-R-E\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e750\u003c\/strong\u003e Feeder Management Relay, operates as a dedicated hardware component for high-speed electrical fault detection within medium-voltage substation distribution networks. The device reads multi-channel current and voltage variables, executing localized overcurrent, ground fault, and phase imbalance protection algorithms to command breaker trip routing under abnormal line conditions.\u003c\/p\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\u003e750-P5-G5-S1-HI-A20-R-E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin (General Electric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSR750 Feeder Management Relay Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States \/ Canada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard SR750 horizontal drawout chassis profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard compact rack-mount panel envelope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard substation panel environment limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eHigh-range (HI) internal control power block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Current Inputs\u003c\/td\u003e\n\u003ctd\u003eThree-channel 5 A nominal transformer inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround Current Input\u003c\/td\u003e\n\u003ctd\u003eOne-channel 1 A zero-sequence transformer link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Inputs\u003c\/td\u003e\n\u003ctd\u003e100-120 VAC nominal range via voltage transformers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003eEight channels of isolated 4-20 mA current loops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Outputs\u003c\/td\u003e\n\u003ctd\u003eMultiple Form-A and Form-C electromechanical relay contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Schemes\u003c\/td\u003e\n\u003ctd\u003ePhase overcurrent, ground fault, negative sequence, undervoltage, overvoltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Logic\u003c\/td\u003e\n\u003ctd\u003eFlexLogic programmable internal configuration arrays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Interface\u003c\/td\u003e\n\u003ctd\u003eEnhanced front-panel display matrix with integrated keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Processing\u003c\/h3\u003e\n\u003cp\u003eThe feeder protection assembly utilizes high-density internal bus traces to maintain deterministic microsecond communication cycles across all sensing and execution sub-modules. Hardware timing circuits dictate that physical current and voltage signals are processed through active analog-to-digital converters, matching the firmware flash compatibility criteria of the core SR750 CPU matrix. This configuration maintains immediate logic resolution under maximum line fault spikes, ensuring that the internally calculated overcurrent tripping sequences broadcast to output contacts without encountering bus bottlenecks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the ground fault input profile of the 750-P5-G5-S1-HI-A20-R-E differ from standard 5 A models?\u003c\/p\u003e\n\u003cp\u003eA: This specific module configuration features a sensitive 1 A zero-sequence ground current input channel instead of the standard 5 A interface. This lower nominal range enables increased processing resolution and selective fault detection on low-impedance or grounded distribution lines prone to minor earth leakages.\u003c\/p\u003e\n\u003cp\u003eQ: Can the internal protection and trip parameters be updated online without disrupting active monitoring?\u003c\/p\u003e\n\u003cp\u003eA: No. Altering critical protection setpoints or updating firmware flash profiles requires the system to be put into configuration mode. To prevent accidental tripping or loss of protection during parameters updates, the relay should be isolated from the live breaker tripping matrix.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":47613857038526,"sku":"750-P5-G5-S1-HI-A20-R-E","price":320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-18_15-06-05_3ac4da7e-59f8-40f4-9e45-27426112f5a2.png?v=1780883920","url":"https:\/\/www.autooiltech.com\/products\/ge-750-p5-g5-s1-hi-a20-r-e-sr750-series-feeder-management-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}