{"product_id":"ge-multilin-745-w2-p5-g5-hi-a-r-e-transformer-protection-system","title":"GE Multilin 745-W2-P5-G5-HI-A-R-E Transformer Protection System","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE Multilin 745-W2-P5-G5-HI-A-R-E\u003c\/strong\u003e is a micro-processor based three-winding transformer protection relay designed for the primary protection and management of power transformers. This device provides high-speed differential protection, extensive current, voltage, and frequency monitoring, as well as integrated programmable logic capabilities. Equipped with comprehensive analog inputs\/outputs and enhanced communication infrastructure including a 10Base-T Ethernet interface, the \u003cstrong\u003eGE Multilin 745-W2-P5-G5-HI-A-R-E\u003c\/strong\u003e ensures seamless integration into modern substation automation networks and industrial SCADA systems. It supports complex transformer configurations with automated restraint and zero-sequence component removal.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThree-winding transformer differential protection capability\u003c\/li\u003e\n\u003cli\u003eHigh-speed dual-slope percentage differential protection with harmonic restraint\u003c\/li\u003e\n\u003cli\u003eEnhanced communication interface supporting 10Base-T Ethernet, RS485, and RS422\u003c\/li\u003e\n\u003cli\u003eIntegrated analog I\/O expansion package featuring 4 analog inputs and 8 analog outputs\u003c\/li\u003e\n\u003cli\u003eAdvanced programmable logic using FlexLogic for custom control schemes\u003c\/li\u003e\n\u003cli\u003eEnhanced user interface with a 40-character vacuum fluorescent display and 22 status LEDs\u003c\/li\u003e\n\u003cli\u003eComprehensive event recording, oscillography, and data logging functions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary and backup protection of three-winding power transformers\u003c\/li\u003e\n\u003cli\u003eSubstation automation and industrial power distribution monitoring\u003c\/li\u003e\n\u003cli\u003eHarmonic analysis and transformer winding temperature emulation\u003c\/li\u003e\n\u003cli\u003eUtility intertie protection and control schemes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model:\u003c\/strong\u003e 745 (Transformer Protection System)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinding Setup:\u003c\/strong\u003e W2 (Three-Wound Transformer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase Current Input:\u003c\/strong\u003e P5 (5 A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Current Input:\u003c\/strong\u003e G5 (5 A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Power:\u003c\/strong\u003e HI (90 to 300 VDC \/ 70 to 265 VAC @ 45 to 66 Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog I\/O:\u003c\/strong\u003e A (4 Analog Inputs \/ 8 Analog Outputs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunications:\u003c\/strong\u003e R (Enhanced Comm: Rear RS485 \/ Rear RS422 \/ Front RS232 \u0026amp; 10Base-T Ethernet)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e E (Enhanced Display: 40-character LCD, 22 LEDs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Function\u003c\/td\u003e\n\u003ctd\u003eThree-Winding Transformer Protection and Management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Current Input\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround Current Input\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage (HI)\u003c\/td\u003e\n\u003ctd\u003e90 to 300 VDC, 70 to 265 VAC @ 45 to 66 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e45 to 66 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Inputs\u003c\/td\u003e\n\u003ctd\u003e4 Channels (0 to 1 mA, 0 to 20 mA, or 4 to 20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003e8 Channels (0 to 1 mA, 0 to 20 mA, or 4 to 20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunications\u003c\/td\u003e\n\u003ctd\u003eFront RS232, Rear RS485\/RS422, 10Base-T Ethernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocols\u003c\/td\u003e\n\u003ctd\u003eModbus RTU, DNP 3.0 Level 2, Modbus TCP\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel Mounting:\u003c\/strong\u003e Mount the unit firmly into a standard cutout on a switchgear panel to minimize mechanical stress and vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Establish a dedicated low-impedance ground connection to the rear terminal ground busbar to mitigate EMI\/RFI interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Transformer Connections:\u003c\/strong\u003e Ensure correct polarity alignment on all phase and ground CT inputs prior to energization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Leave sufficient clearance around the cooling vents at the rear of the unit to ensure natural convective ventilation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUL listed (USA and Canada)\u003c\/li\u003e\n\u003cli\u003eISO9001:2000 Quality Management System\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52695417258347,"sku":"745-W2-P5-G5-HI-A-R-E","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ge-multilin-745-w2-p5-g5-hi-a-r-e-feeder-management-relay-ndul2lbffny_26fb1d0e-ae4b-4801-98d8-d040583433fb.jpg?v=1766135288","url":"https:\/\/www.plcprotech.com\/ru\/products\/ge-multilin-745-w2-p5-g5-hi-a-r-e-transformer-protection-system","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}