{"product_id":"abb-dspad-02-647-stabilized-differential-relay","title":"ABB DSPAD\/02\/647 Stabilized Differential Relay","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB DSPAD\/02\/647\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an advanced stabilized differential relay engineered for the protection of power transformers and generator-transformers. Combining three-phase differential, overcurrent, and earth-fault protection into a single compact device, this relay delivers accurate fault detection with rapid tripping, reducing transformer stress and preventing extensive damage.\u003c\/p\u003e\n\u003cp\u003eDesigned for reliability in power generation, transmission networks, and heavy industrial installations, it ensures operational safety under demanding electrical conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStabilized Differential Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Functions\u003c\/td\u003e\n\u003ctd\u003eThree-phase differential, overcurrent, earth-fault\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Detection\u003c\/td\u003e\n\u003ctd\u003eWinding short-circuits, interturn faults, earth faults, interwinding short-circuits, pole short circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStabilization\u003c\/td\u003e\n\u003ctd\u003ePrevents false trips during transformer inrush and external faults\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy Class\u003c\/td\u003e\n\u003ctd\u003e5P (distinguishes between operational and fault currents)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003eFast tripping to isolate faults efficiently\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e110–240 V AC\/DC (typical, confirm per installation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail or panel-mountable, compatible with standard enclosures\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e334.6 × 121.9 × 21 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.42 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated transformer protection in a single module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-precision measurement for reliable fault discrimination\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRapid trip response to minimize equipment damage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStabilized design to avoid nuisance tripping during inrush conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompact and lightweight for flexible installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation substations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial transformer installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUtility and heavy industrial power networks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGenerator-transformer protection in combined cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCan the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDSPAD\/02\/647\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebe used for both single and three-phase transformers?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, it supports three-phase differential protection and can be configured for various transformer types.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHow does it handle transformer inrush currents?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe relay includes stabilization features that prevent false trips during inrush conditions while maintaining accurate fault detection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAre there similar ABB models for comparison?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eComparable models include ABB\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREF615\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRET615\u003c\/strong\u003e, which offer advanced differential and overcurrent protection with digital communication interfaces.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43008812777562,"sku":"DSPAD\/02\/647","price":258.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/ABBDSPAD32376_60b89eba-57eb-41d0-8b3e-ac1fb42d3d08.jpg?v=1740999152","url":"https:\/\/www.plcmasters.com\/ru\/products\/abb-dspad-02-647-stabilized-differential-relay","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}