Common tests for medium-voltage switchgear include:

  • Insulation resistance testing to verify the integrity of the insulation.
  • Contact resistance testing to measure resistance across breaker contacts.
  • High-potential (Hi-Pot) testing to assess dielectric strength.
  • Protection relay testing to validate relay settings and operation.
  • Current transformer (CT) testing to confirm ratio and polarity accuracy.
  • Functional testing to simulate system operation and verify coordination and interlocks.