{"product_id":"abb-ret316-4-hesg448750m2-transformer-protection-relay","title":"ABB RET316*4 HESG448750M2 Transformer Protection Relay","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ABB\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRET316*4 HESG448750M2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a modular digital protection relay designed for high-speed, selective monitoring of two-winding and three-winding power transformers. It executes sophisticated phase, earth, and interturn fault detection without requiring external interposing current transformers. \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: ABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRET316*4\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHESG448750M2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e: Transformer protection, measurement, and substation supervision\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtection Schemes\u003c\/strong\u003e: Differential, thermal overload, overexcitation, distance, overcurrent, and breaker failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperational Voltage\u003c\/strong\u003e: 24 V DC input power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtocol Support\u003c\/strong\u003e: IEC 61850, Modbus, DNP3, and IEC 60870-5-103 architectures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFieldbus Expansion\u003c\/strong\u003e: Profibus DPV1 compatible when paired with an external SPA-ZC 302 adapter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardware Ports\u003c\/strong\u003e: 3 serial interfaces for terminal PCs, station control networks, and process buses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnclosure Protection\u003c\/strong\u003e: IP20 ingress rating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration Utility\u003c\/strong\u003e: Driven via CAP2\/316 software and PCM600 logic systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Window\u003c\/strong\u003e: Operates reliably from -20 to +55 degrees Celsius\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e: 67.5 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e: 135 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e: 28 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e: 1.5 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Application Scenarios\u003c\/h3\u003e\n\u003cp\u003eThis protection controller is implemented within heavy industrial power substations, renewable energy generation sites, and utility grid networks to safeguard critical transmission transformers from winding damage and overexcitation faults.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45025546797171,"sku":"RET316*4 HESG448750M2","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-22_11-08-45.png?v=1779420963","url":"https:\/\/www.dcssupplier.com\/products\/abb-ret316-4-hesg448750m2-transformer-protection-relay","provider":"DcsSupplier Limited","version":"1.0","type":"link"}