Analysis Of Low Insulation Problem Of Busbar In 35kv Switch Cabinet
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After the purchase of Insulation Contact Box, the technicians carried out a power outage inspection and treatment of the low insulation problem of the upper busbar of the 35kV switch cabinet as planned. After the power outage, without any treatment, the insulation resistance tester FLUKE 1550C was used to test the insulation of the three-phase busbar to the ground at 2500V. Phase A: 8.35GΩ, Phase B: 163MΩ, Phase C: 52.9MΩ. It was judged that the insulation of phases B and C was low, and phase C just met the operating requirement of not less than 50MΩ.
