Basis for replacing reactive power compensation power capacitors

Reactive power compensation power capacitor is a reactive power compensation device that can improve power factor. To ensure that the power capacitor can function at any time, it is necessary to ensure its normal and stable operation.

However, many users are confused: is it time to replace the compensating power capacitors they are using? Let's discuss together in today's article!

Basis for replacing reactive power compensation power capacitors

1. The capacitor has a "visual" fault

From the appearance, it can be directly seen that the reactive power compensation capacitor has serious faults such as severe expansion, oil leakage, fire, explosion, etc., which means that the capacitor must be replaced.

In order to ensure the normal operation of reactive power compensation, in addition to regularly checking whether there are obvious problems with the capacitor bank, it is also necessary to regularly shut down for maintenance, check whether there are discharge marks on the bushing, and whether the capacity is severely degraded.

2. Severe attenuation of power capacitors

Once the reactive power compensation power capacitor severely attenuates, it not only fails to meet the relevant compensation requirements, but may also lead to equipment failures such as capacitors, shorten the actual service life, and increase system losses.

Therefore, when the capacitance value of the compensation capacitor severely decays, it is necessary to consider replacing the capacitor. If the capacitance value of the capacitor is only 10%, it means that the life is terminated and it cannot be used anymore, and it needs to be replaced immediately.

3. Poor compensation effect

If the indicators of the reactive power compensation capacitor used are normal, but there are frequent faults in actual use, even if a new compensation capacitor is replaced, the same problem will still occur, and the power factor still does not meet the standard

If this phenomenon is found, it proves that the selection of power capacitors is improper or the capacitance reactance is mismatched. To ensure the compensation effect, it is necessary to replace the power capacitor.