ABB Earth Leakage Relay

REF601 ABB Earth Leakage Relay

REF601 ABB Earth Leakage Relay is a dedicated feeder protection and control relay intended for the protection and control of utility and industrial power systems in primary and secondary distribution networks. The relay provides an optimized composition of protection, monitoring and control functionality in one unit, with the best performance and usability in its class. Besides the conventional current transformer interface based variant, the relay also supports a variant based on Rogowski current sensors’ analog interface. This helps to obtain a compact medium voltage switchgear equipment size reduc­tion with improved performance and standardization.

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Feature

  • Compact, flexible and simple to handle
  • Speedy commissioning through selective test function for protection functions, binary signals and communication features
  • Easily configurable binary inputs and outputs
  • Extensive self-supervision of the relay hardware and software
  • Enhanced safety with usage of sensors variant / detachable terminals with CT shorting facility
  • Press fit mounting arrangement facilitates easy and fast installation

Applications

  • Service entrance ground fault protection
  • General industrial use

Specifications

  • Measured/monitored value: earth-leakage, over-current, thermal, phase sequence, frequency
  • Applications: for feeder
  • Mounting: panel-mount
  • Norms: IEC
  • Other characteristics: digital, programmable, configurable, compact
  • Trigger voltage: Max.: 265 V
  • Min.: 24 V

 

 

 

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