{"product_id":"reb670-abb-relion-670-busbar-differential-protection","title":"REB670 | ABB | Relion 670 Busbar Differential Protection","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREB670\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance numerical protection relay from the ABB Relion 670 series, specifically engineered for the high-speed differential protection of busbars in medium- and high-voltage substations. As an Intelligent Electronic Device (IED), the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eREB670\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eintegrates complex protection logic, real-time monitoring, and advanced communication capabilities into a single unit. It is designed to provide maximum selectivity, ensuring that internal busbar faults are cleared within milliseconds while maintaining absolute stability during external through-faults or heavy load conditions. This relay is a critical component for utility transmission grids, large-scale power plants, and industrial distribution networks where system availability is paramount.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: ABB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel\u003c\/strong\u003e: REB670\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e: Relion 670 Protection and Control Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDevice Type\u003c\/strong\u003e: Numerical Busbar Protection Relay\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e: Busbar differential protection (low\/high impedance), breaker failure protection, backup overcurrent, and voltage supervision.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated Current Input\u003c\/strong\u003e: 1 A or 5 A (Software\/Hardware selectable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated Voltage Input\u003c\/strong\u003e: Up to 110 V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Frequency\u003c\/strong\u003e: 50 \/ 60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAuxiliary Power Supply\u003c\/strong\u003e: Wide range 24–250 V DC or 48–240 V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBinary Inputs\/Outputs\u003c\/strong\u003e: Scalable, programmable digital I\/O for logic interlocking and signaling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Protocols\u003c\/strong\u003e: IEC 61850-8-1 (Ed. 1\/Ed. 2), IEC 60870-5-103, Modbus RTU\/TCP, DNP3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTime Synchronization\u003c\/strong\u003e: Precision timing via SNTP, IRIG-B, or GPS (via specialized modules)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e: Local HMI with high-resolution LCD and navigational keypad\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: -25°C to +70°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e: -40°C to +85°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Configuration\u003c\/strong\u003e: 19-inch rack mount or panel flush-mount options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e: 6.0 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e: IEC 60255, CE, UL\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43026944065626,"sku":"REB670","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/36._9783c837-8317-42fb-a219-0198a85cace4.jpg?v=1773200059","url":"https:\/\/www.spareoil.com\/products\/reb670-abb-relion-670-busbar-differential-protection","provider":"SpareOil Automation","version":"1.0","type":"link"}