{"product_id":"ge-multilin-745-w3-p511-g51-hi-r-e-transformer-protection-system","title":"GE Multilin 745-W3-P511-G51-HI-R-E Transformer Protection System","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE Multilin 745-W3-P511-G51-HI-R-E\u003c\/strong\u003e is a digital, three-winding transformer protection system engineered for the primary protection, management, and control of power transformers. This high-performance device delivers comprehensive multi-winding differential protection, adaptive harmonic restraint, and extensive overcurrent protection elements within a rugged draw-out construction. It features advanced internal logic and precise high-accuracy metering to eliminate the need for extra external components or auxiliary transducers. The unit is configured with 5 A phase current inputs and 5 A ground current inputs across its winding interfaces to match specific system requirements. Outfitted with high-speed processing, comprehensive data logging, and flexible communication ports, the device interfaces seamlessly with distributed control systems (DCS) and SCADA automation architectures to monitor asset health and maintain system integrity.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComprehensive three-winding transformer differential protection with percentage restraint and adaptive harmonic blocking.\u003c\/li\u003e\n\u003cli\u003eDraw-out chassis construction allowing quick unit replacement and drastically reduced system maintenance downtime.\u003c\/li\u003e\n\u003cli\u003eIntegrated high-accuracy metering functions for current, voltage, power, and frequency parameters without auxiliary equipment.\u003c\/li\u003e\n\u003cli\u003eAdvanced fault diagnostics incorporating precise sequence-of-events reporting, oscillography, and waveform capture.\u003c\/li\u003e\n\u003cli\u003eMultiple user-programmable analog and digital inputs\/outputs for extensive control and interlocking logic schemes.\u003c\/li\u003e\n\u003cli\u003eHigh-speed communications supporting industrial protocols for integration into SCADA networks.\u003c\/li\u003e\n\u003cli\u003eFlexLogic programming capabilities allowing users to customize control sequences and interlocking logic without extra hardware.\u003c\/li\u003e\n\u003cli\u003eFront-panel enhanced user interface with an informative LCD screen and tactile keypad for straightforward configuration and diagnostic readout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary protection and control for three-winding power transformers in utility and industrial substations.\u003c\/li\u003e\n\u003cli\u003eMain or backup differential and overcurrent protection for auto-transformers and multi-winding generation transformers.\u003c\/li\u003e\n\u003cli\u003eComprehensive asset monitoring, load profiling, and transformer thermal overload tracking in power networks.\u003c\/li\u003e\n\u003cli\u003eAdvanced power system automation requiring high-speed network reporting and protective relay interlocking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Code\u003c\/th\u003e\n\u003cth\u003eTechnical Specification Description\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e745\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase model for Transformer Protection System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eW3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThree-Winding Transformer Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eP511\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A Phase Current Inputs (Winding 1, Winding 2, Winding 3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eG51\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A Ground Current Inputs (Winding 1, Winding 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e88 – 300 VDC, 70 – 265 VAC @ 48 – 62 Hz Power Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRed Breaker Closed LED Indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnhanced Display, Larger LCD, and Improved Keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\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\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGE Multilin (GE Vernova)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransformer Windings (W3)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Windings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase Current Inputs (P511)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A for all three windings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGround Current Inputs (G51)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A for Winding 1 and Winding 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Option (HI)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e88 – 300 VDC, 70 – 265 VAC @ 48 – 62 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBreaker Status LED (R)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRed breaker closed LED indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUser Interface (E)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnhanced display, larger LCD, and improved keypad layout\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\u003eChassis Mounting:\u003c\/strong\u003e Securely mount the draw-out chassis into the instrument panel cutout using standard hardware guidelines designated for the unit frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Protocols:\u003c\/strong\u003e Connect a dedicated, low-impedance grounding copper wire directly to the chassis ground terminal to mitigate electrical noise and protect sensitive circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Requirements:\u003c\/strong\u003e Route current transformer (CT) and voltage transformer (VT) connections isolated from low-voltage signal wiring and communication lines to mitigate EMI\/RFI issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCT Circuit Integrity:\u003c\/strong\u003e Ensure all phase and ground current transformer secondary circuits are fully verified and safely terminated to the correct rear blocks prior to operational power-up.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52695422206315,"sku":"SR745-W3-P511-G51-HI-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-w3-p511-g51-hi-r-e-feeder-management-relay-2wt4wezgyeo_6f0d591b-f301-494d-8c8f-bf3064e5b77e.jpg?v=1766135460","url":"https:\/\/www.plcprotech.com\/ru\/products\/ge-multilin-745-w3-p511-g51-hi-r-e-transformer-protection-system","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}