BRU9950900-01

Circuit Breaker Auxiliary Tests

The following tests were conducted during the manufacturing process (except the CT insulation test and magnetization curve) and are provided as a reference for commissioning purposes:

  • All secondary wiring has been subjected to a 1 kV insulation test at the factory.

  • For on-site testing, it is recommended to use a 1000 V insulation megger to avoid overstressing the insulation.

  • Disconnect all earth connections and test the wiring to earth.

  • For units equipped with a VIP relay, refer to the VIP user guide (NRJED311206EN).

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