Question

Explain the procedure of testing a high voltage capacitor of microwave oven.

Hint:

Always discharge high voltage capacitors before testing to prevent electrical hazards.

Answer 1

Steps to test a high voltage capacitor:
1. Disconnect the microwave from the power source.
2. Discharge the capacitor using an insulated screwdriver to avoid electric shocks.
3. Remove the capacitor and inspect for physical damage.
4. Use a multimeter set to the resistance mode to check continuity.
5. Observe the meter reading: a good capacitor shows increasing resistance, while a defective one shows zero or infinite resistance.