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Electrical fault between two windings of the same phase of a generator having double star winding can be detected by the following protection in the generator

  • Electrical fault between two windings of the same phase of a generator having double star winding can be detected by inter-turn fault protection in the generator.
  • In a double-star winding, each phase has two windings connected in series, and inter-turn faults can occur within each winding.
  • Inter-turn fault protection is a method of detecting such faults, which involves the installation of a relay that monitors the current in each winding and detects any imbalances that occur due to a fault.
  • When an inter-turn fault occurs, the current in one of the windings will increase, causing an imbalance that can be detected by the relay.
  • The relay then sends a signal to trip the generator and prevent further damage.