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IAV Time Delay Voltage Relay

IAV Time Delay Voltage Relay
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The Type IAV relays are single phase induction disk relays designed to respond, with time delay, to either an increasing or a decreasing voltage, or both. Some models are frequency compensated, and some include an instantaneous unit (hinged armature type). Most models listed in the Selection Guide include a target seal-in unit on all contacts.

  • AC generators (including Hydro)
  • Distribution feeder
  • Protection and Control
  • Generator overvoltage
  • Feeder under and overvoltage