— Relion® 620 series Protection and control relays

ABB’s Relion 620® series of relays offers a wide range of protection and control functionality, characterized by functional scalability and flexibility, for more advanced power distribution applications.

08 Feeder protection and control control RET620 10 Motor protection and control

— The 620 series relays have been designed for protection, control, measurement and supervision in utility, industrial, and transport and infrastructure applications.

RELION® 620 SERIES PROTECTION AND CONTROL RELAYS 620 series Flexibility for utility and industrial power distribution systems The 620 protection and control series of relays is a member of ABB’s Relion® product family. The 620 series relays are characterized by their compactness, functional scalability and withdrawable plug-in unit design. Flexible adaptation to application-specific requirements The wide functionality offering, combined with the ability to run large configurations, makes the 620 series relays ideal for protection and control in more advanced power distribution applications. They...

Capacitor bank Voltage protection Automatic voltage regulation Main customer benefits • Compact and versatile solution for utility and industrial power distribution systems with integration of protection, control, monitoring and supervision in one relay • Wide application coverage – feeder (including basic motor, interconnection, capacitor bank, busbar and arc protection), transformer as well as motor protection and control • Extensive range of protection and control functionality, either with sensors or conventional instrument transformers • Withdrawable plug-in unit design for swift installation...

RELION® 620 SERIES PROTECTION AND CONTROL RELAYS REF620 has been designed to protect overhead line and cable feeders in utility and industrial power distribution systems, including radial, looped and meshed distribution networks, with or without distributed power generation. • = Supported o = Optional add-on Application REF620 has been designed to be the main overcurrent and earth-fault protection for overhead lines and cable feeders, in either isolated neutral, resistance-earthed, compensated or effectively-earthed networks. The feeder management relay can be used in various single or double-busbar...

RET620 has been designed to protect power and step-up transformers, including power generator-transformer blocks, in utility and industrial power distribution systems. RET620 is also ideal for voltage regulation. • = Supported o = Optional add-on Application RET620 has been designed to be the main protection for two-winding power transformers and power generator-transformer blocks. The transformer management relay can be used in various single or double-busbar applications, with either one or two breakers and numerous switching devices. It also supports a substantial number of both manually and...

RELION® 620 SERIES PROTECTION AND CONTROL RELAYS • = Supported o = Optional add-on Application REM620 has been designed to be the main protection for medium-sized and large asynchronous motors requiring differential protection. The coverage is now extended to include synchronous motors. In addition, support for sensor-based phase current and voltage measurement is introduced, specifically intended for basic motor applications. The motor management relay is typically used with medium-sized and large circuit-breaker or contactor-controlled MV motors and contactor-controlled LV motors in a variety...

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