{"product_id":"abb-ret620-relion-620-protection-and-control-relay","title":"ABB RET620 Relion 620 Protection and Control Relay","description":"\u003cp\u003eConfigured for two-winding transformer differential protection, tap changer voltage regulation, and sub-station signal acquisition in Relion 620 series platforms, the \u003cstrong\u003eABB RET620\u003c\/strong\u003e (\u003cstrong\u003eRET620\u003c\/strong\u003e Transformer Protection and Control Relay) provides direct physical\/electrical execution.\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\u003eRET620\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\u003eFinland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard Relion 620 series internal power supply draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Application\u003c\/td\u003e\n\u003ctd\u003eTwo-winding power transformers, step-up transformers, generator-transformer blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Functions\u003c\/td\u003e\n\u003ctd\u003eDifferential protection, automatic voltage regulation (OLTC), arc protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarth-Fault Schemes\u003c\/td\u003e\n\u003ctd\u003eHigh-impedance or numerical low-impedance restricted earth-fault (REF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850 Ed. 1 \u0026amp; Ed. 2 (GOOSE, IEC 61850-9-2 LE), Modbus, DNP3, IEC 60870-5-103\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Redundancy\u003c\/td\u003e\n\u003ctd\u003eHigh-availability Seamless Redundancy (HSR) and Parallel Redundancy Protocol (PRP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Synchronization\u003c\/td\u003e\n\u003ctd\u003eIEEE 1588 v2 Precision Time Protocol (PTP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Interface\u003c\/td\u003e\n\u003ctd\u003eLarge graphical LCD with customizable Single-Line Diagram (SLD) and web HMI\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 \u0026amp; Deterministic Networks\u003c\/h3\u003e\n\u003cp\u003eThe RET620 optimizes backplane bus communication velocity and internal analog-to-digital signal processing to execute high-speed transformer differential algorithms with inrush current stabilization. Integrated native IEC 61850 Edition 1 and Edition 2 protocol stacks support GOOSE messaging and IEC 61850-9-2 LE sampled values, minimizing hardwired interconnections across deterministic networks. Utilizing HSR and PRP redundant Ethernet architectures along with IEEE 1588 v2 Precision Time Protocol (PTP), the unit ensures uninterrupted data synchronization and firmware flash compatibility across utility and industrial substation automation networks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What network redundancy standards are supported by the RET620 Ethernet interface?\u003c\/p\u003e\n\u003cp\u003eA: The relay natively supports High-availability Seamless Redundancy (HSR) and Parallel Redundancy Protocol (PRP) to prevent communication loss in critical substation network loops.\u003c\/p\u003e\n\u003cp\u003eQ: How is restricted earth-fault (REF) protection configured on this unit?\u003c\/p\u003e\n\u003cp\u003eA: The RET620 supports various neutral earthing configurations matching either high-impedance or numerical low-impedance restricted earth-fault principles.\u003c\/p\u003e\n\u003cp\u003eQ: What mechanical housing design is utilized for maintenance and testing?\u003c\/p\u003e\n\u003cp\u003eA: The relay features a withdrawable plug-in unit design, allowing rapid physical isolation, testing, and replacement without disturbing rear field terminal wiring.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eCut out the switchgear panel door or mounting rack according to Relion 620 series dimensional templates, inserting the outer case frame into position.\u003c\/li\u003e\n\u003cli\u003eConnect the protective earthing conductor directly to the chassis ground screw using a heavy gauge copper braid before making any signal or power connections.\u003c\/li\u003e\n\u003cli\u003eWire the current transformer (CT), voltage transformer (VT), and on-load tap changer (OLTC) control lines to the rear terminal blocks, ensuring correct phase polarity.\u003c\/li\u003e\n\u003cli\u003eConnect dual Ethernet communications cables to the RJ45\/LC ports to establish HSR or PRP redundancy loops.\u003c\/li\u003e\n\u003cli\u003eInsert the withdrawable relay plug-in unit into the flush-mounted case until the locking handle latches securely, then apply auxiliary power and verify relay readiness via the local graphical display.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53218209366325,"sku":"RET620","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/RET620.png?v=1785134835","url":"https:\/\/www.5gplc.com\/products\/abb-ret620-relion-620-protection-and-control-relay","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}