Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

No-Load Full-Voltage Switching Impulse Testing for Newly Commissioned TransformersFor newly commissioned transformers, besides conducting necessary tests according to handover test standards and protection/secondary system tests, no-load full-voltage switching impulse tests are typically performed before official energization.Why Perform Impulse Testing?1. Check for Insulation Weaknesses or Defects in the Transformer and Its CircuitWhen disconnecting a no-load transformer, switching overvoltages

The purpose of the pulse testDetection of partial dischargePartial discharge refers to the discharge phenomenon that occurs at the air gap or impurity in the insulation material under the action of high voltage electric field, which may gradually destroy the insulation system.Evaluate the degree of insulation agingBy analyzing the characteristics of partial discharge, you can evaluate the degree of aging of the insulation material.Identify potential insulation failuresProblems such as moisture,