{"product_id":"ge-489-p5-hi-a20-generator-management-relay-system","title":"GE 489-P5-HI-A20 Generator Management Relay System","description":"\u003ch3\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGE 489\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a microprocessor-based generator management relay designed to provide\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecomprehensive protection, control, and monitoring\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor synchronous and induction generators. It is widely applied in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epower plants, cogeneration systems, industrial facilities, and utility substations\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe relay integrates multiple generator protection functions, high-accuracy metering, event recording, and communication capabilities into a single platform. By continuously monitoring electrical parameters, the GE 489 can rapidly detect abnormal operating conditions—such as overcurrent, reverse power, loss of excitation, or frequency deviations—and initiate protective actions to prevent equipment damage and ensure system stability. Its flexible configuration and robust hardware make it suitable for both new installations and retrofit projects.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\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\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eGE 489 Generator Management Relay\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGenerator Protection and Management Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Input Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 A or 5 A CT secondary (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThree-phase voltage inputs for generator monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Power Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLow range: 20–60 V DC \/ 20–48 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh range: 90–300 V DC \/ 70–265 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 Hz \/ 50 Hz \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOvercurrent, differential protection, over\/under-voltage, over\/under-frequency, reverse power, loss of excitation, negative sequence, thermal protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMetering Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-accuracy RMS measurement for current, voltage, power, energy, and frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4–20 mA programmable outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Inputs \/ Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMultiple programmable digital inputs and relay outputs (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS232 \/ RS485; supports common industrial protocols (e.g., Modbus, DNP3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEvent \u0026amp; Fault Recording\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTime-stamped event records and fault logs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLarge backlit LCD with keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePanel-mounted, draw-out case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 °C to +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GE","offers":[{"title":"Default Title","offer_id":51520153256247,"sku":"489-P5-HI-A20","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/8343\/6343\/files\/489-P5-HI-A20.jpg?v=1767493674","url":"https:\/\/www.controltech-supply.com\/ru\/products\/ge-489-p5-hi-a20-generator-management-relay-system","provider":"ControlTech Supply Limited","version":"1.0","type":"link"}