Circuit Breaker Maintenance and Electrical Testing

William E. Groves Construction, Inc. is your one-stop-shop for circuit breaker maintenance and electrical testing of your industrial equipment.

ETM can perform the following electrical tests:

  • Contact Resistance (ductor)
  • Insulation Resistance (Megger)
  • High Potential Test (hi-pot) on vacuum bottles
  • Current Transformer Ratio and Polarity
  • Current Transformer Excitation
  • Primary Current Injection
  • Circuit Breaker Timing and Travel Analysis