{"product_id":"abb-ret316-4-hesg448750m2-numerical-transformer-protection-relay","title":"ABB RET316*4 HESG448750M2 Numerical Transformer Protection Relay","description":"\u003cp\u003eThe \u003cstrong\u003eABB RET316*4 HESG448750M2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eRET316*4\u003c\/strong\u003e Numerical Transformer Protection Relay, operates as a dedicated hardware component for advanced protection, control, measurement, and supervision within two- or three-winding transformers, autotransformers, and generator-transformer blocks. The multi-layer logic processing core executes real-time evaluation of differential current vectors, phase unbalances, and thermal replica metrics. It communicates directly with station control networks and process buses to isolate electrical faults via high-speed trip outputs before damage occurs to the transformer windings.\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\u003eRET316*4 HESG448750M2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSwitzerland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e67.5 mm x 135 mm x 28 mm (W x H x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 V DC auxiliary supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850, IEC 60870-5-103, Modbus, DNP3, Profibus DPV1 (via SPA-ZC 302)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterfaces\u003c\/td\u003e\n\u003ctd\u003e3 serial ports (local PC, station control system, process bus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Configuration\u003c\/td\u003e\n\u003ctd\u003eMulti-layer logic with timers, flip-flops, and custom schemes via PCM600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration Software\u003c\/td\u003e\n\u003ctd\u003eCAP2\/316 menu-driven software\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 Network Integration\u003c\/h3\u003e\n\u003cp\u003eThe RET316*4 utilizes three dedicated serial interfaces structured to match high-frequency backplane bus communication velocity baselines. The architecture routes time-critical sampled values and breaker status attributes across deterministic networks using natively supported IEC 61850 or external Profibus DPV1 physical layer links. This network execution allows for rapid I\/O density scaling inside complex substation racks while maintaining predictable firmware flash compatibility across legacy terminal hardware nodes without augmenting total system propagation delays.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":47582978769086,"sku":"RET316*4 HESG448750M2","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-22_11-08-45_8fa5ca7d-c082-4e61-8fac-983d630adeab.png?v=1779848748","url":"https:\/\/www.autooiltech.com\/products\/abb-ret316-4-hesg448750m2-numerical-transformer-protection-relay","provider":"AutoOilTech Limited","version":"1.0","type":"link"}