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Omicron CMC 256 - Three Phase Relay Test Set

Omicron CMC 256 Three Phase Relay Test Set

The Omicron CMC 256 is a three phase relay test set. Due to the long life spans of protection relays, engineers are often required to test relays of all generations from older electromechanical designs to the latest IEDs (Intelligent Electronic Device). Three phase relay test sets for the testing of all types of distance relays, voltage relays, RoCoF etc. This instrument is available with relay types pre-programmed and user interface via software.


  • Universal solution for testing all relay generations & types
  • Designed for protection testing of electromechanical relays as well as for testing modern IEC 61850 IEDs
  • Ideal tool for various testing tasks in substation commissioning & maintenance
  • First choice for all applications requiring the highest versatility, amplitude & power
  • Opens up new possibilities especially for applications with 5A CTs & for tests with very high power demand
  • Specification covers applications in power generation (including distributed generation), transmission, distribution, industry & railways in high, medium & low voltage levels
  • Commissioning engineers will appreciate the ability to perform wiring & plausibility checks of the current transformers by primary injection of high currents from the test set
  • Three-phase testing of high-burden electromechanical relays & the latest IEC 61850 technology in one device is the answer to the wide variety of challenges in today's protection engineering
  • Complete with omicron's versatile software including the Universal Advanced Protection package

    Package Includes

  • Carry case
  • User guide

  • Code HRPH.21
    Item Omicron CMC 256 - Three Phase Relay Test Set
    Weekly £726.00