Digital Energy > Protection & Control > Voltage and Frequency Relays > IAV Time Delay Voltage Relay
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IAV Time Delay Voltage Relay

IAV Time Delay Voltage Relay

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