{"product_id":"abb-red670-1mrk002810-ac-line-differential-protection","title":"ABB RED670 1MRK002810-AC Line Differential Protection","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB RED670 (1MRK002810-AC)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an advanced Intelligent Electronic Device (IED) specifically engineered for the high-speed protection of overhead transmission lines and underground cables. As part of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRelion® 670 series\u003c\/strong\u003e, it utilizes the \"Unit Protection\" principle, comparing the instantaneous current values at both ends of the protected zone via a dedicated communication link. \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRED670 (Part: 1MRK002810-AC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e50\/60 Hz (Auto-detecting)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-40°C to +70°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtection Speed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSub-cycle fault detection and clearance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5% to 95% RH (Non-condensing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e230 mm x 160 mm x 100 mm; Weight: 1.5 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFull IEC 61850 support for digital substation integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features \u0026amp; Engineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhase-Segregated Differential Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEvaluates each phase independently, providing superior performance for single-phase-to-earth faults, which are the most common on transmission grids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports various communication media, including direct fiber optic links or multiplexed networks (SDH\/SONET), ensuring the two relays at either end of the line remain perfectly synchronized.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdaptive Algorithms:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit automatically adjusts its sensitivity based on load conditions and charging currents, effectively eliminating nuisance trips on long, high-voltage cables.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMulti-Application Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBeyond line protection, the RED670 includes functional libraries for busbar and transformer protection, making it a versatile asset for substation engineering.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSub-Cycle Operation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRapidly identifies internal faults to trigger circuit breakers within milliseconds, minimizing the thermal and mechanical stress on expensive grid infrastructure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46805215609022,"sku":"RED670 1MRK002810-AC","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-05-08_13-50-22_4f3543c4-d847-409d-bdfb-7f23d1321120.png?v=1778219695","url":"https:\/\/www.autooiltech.com\/products\/abb-red670-1mrk002810-ac-line-differential-protection","provider":"AutoOilTech Limited","version":"1.0","type":"link"}