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What is a doble test



What is a doble test..

Answer / rk

The insulating power factor test, better known as the ”Doble
Test”, is a complete overall test of the insulating
properties of a transformer. Elements such as carbonization,
ionization, moisture, and heat can breakdown the
insulation's strength. The Doble test measures the power
losses due to leakage current through the insulation.

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