The products > Reactive energy compensation > High voltage capacitors and capacitor banks > High voltage capacitor banks > Protection and operating devices

The protection and operating devices (circuit breaker, fuse, switch, contactor) of a high voltage capacitor bank must take the following constraints into account:

• capacity to withstand high transient currents when activated

• capacity to guarantee a disconnection without reconnection when opened (at disconnection, the bank may loaded at full voltage)

• capacity to withstand a continuous RMS current equivalent to at least 1.43 times the nominal 50Hz current of the bank in a steady state

The vacuum disconnection control devices or the operating devices in the SF6 are perfectly suitable for capacitor bank control and protection.

The technical departments at ALPES TECHNOLOGIES can advise you on the choice of a suitable protection and operating device for your capacitor bank.

High voltage summary