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sf6 Load break switch high-voltage switchgears leakage test electronic weighing device

Routine Tests of Circuit Breakers | Electrical4U· During test the voltage is applied at the button terminal of breakers by high voltage cascaded transformer, and varied from 0 to specified value slowly and gently then stay there for 60 second and then slowly decreased to zero. During test the leakage current to the ground to be measured and the leakage current should not cross the specified ...

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