Maintenance for CBB capacitors

Nowadays, CBB capacitors have been widely used in our electrical appliances. Because CBB capacitors are rich in functions, such as phase shifting, coupling, step-down, filtering, etc., they are often used for parallel compensation of reactive power in high and low voltage systems, shunting of parallel AC high voltage circuit breakers, and motor starting. , voltage partial pressure and so on. Through reactive local compensation, it can reduce line loss, reduce line voltage drop, improve voltage quality, and improve system power supply.

Power system loads such as electric motors, electric welders, induction furnaces, etc., in addition to consuming active power, also "absorb" reactive power. Reactive power is also required for transformers of power systems. If all reactive power is supplied by the generator, it is not only expensive, but also the voltage quality is poor, which affects the user's use.

CBB capacitor daily inspection items:

1. Check that it is operating at rated voltage and rated current. The three-phase ammeter indication value should be balanced.

2. The casing is completely clean, free of cracks or discharge.

3. The terminals of each connecting cable should be tight and not hot.

4. The shell has no deformation and expansion.

5. There is no noise inside the capacitor.

6. There is no external flashover and the case is grounded.

7. The capacitor room should be well ventilated and the operating environment temperature should not exceed 45 °C.

8. The protective devices of the capacitors are all put into operation.

9. Check the capacitor's circuit breaker, transformer, reactor, discharge coil, etc. should be abnormal. Through reactive local compensation, it can reduce line loss; reduce line voltage drop, improve voltage quality; improve system power supply capability.

If you need sample testing requirements, please contact us to provide a sample test for free.