What is the qualified value of transformer high and low voltage insulation resistance?
What is the qualified value of transformer high and low voltage insulation resistance? The qualified standard for insulation resistance of power transformers in operation is: for 10KV level and below, the insulation value is greater than 300 megohms; for 35KV level, the insulation value is greater than 400 megohms (ambient temperature is 20℃). The insulation […]
