Electrical plate capacitor resin test - is carried out by applying supply and checking for pulse generation

摘要

Electrical plate capacitors are formed from metal coated plastic material that is protected from the adverse effects of moisture by being located in a cup-shaped container that is filled with a suitable casting resin. The capacitors are checked for faults in the resin by applying a probe, connected to a power supply, to the surface of the resin. A second probe connects one or both of the terminals to ground to complete a test circuit. A fault is indicated by a pulse being generated. ADVANTAGE - Simple means of testing.