The application and research of impedance-voltage compare method in the testing of distribution transformer's capacity

The text introduce the theory and the test result of the determination of distribution transformer's capacity in impedance-voltage compare method, and analyse the new method's excellence in contrast to the traditional test methods of transformer capacity. The impedance-voltage compare method associating with the three element determination method can prevent the fault judgement of distribution transformer's capacity with very high veracity. It has very high actual meaning to the work against stealing and reducing wasting electricity.