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Enhanced Features For OSM Imterface Test Set

The Interface Test Set is used to conduct primary and secondary injection testing for the OSM recloser.

The latest version of this tool now has re-settable thermal circuit breakers for each current channel. Each current input has its own neutral connection rather than a common connection.

The set simulates the current and voltage signals generated by sensors inside the OSM15 and OSM27 recloser bushings. It connects to the OSM control cubicle and OSM tank through Harting connectors. When used in conjunction with a power system and three phase test set the following tests can be conducted:

  • Three phase short circuit
  • Phase to phase short circuit
  • Earth fault
  • Upstream broken wire
  • Low source voltage
  • Loss of supply