ZN12 40 5 vacuum circuit breaker can be used as a switch for capacitor cabinets

Yes, when ordering, just tell the circuit breaker manufacturer that it is used to switch the capacitor, and he will add an accessory.

It can't be done unless you make it clear to the manufacturer before ordering, so that they can make a circuit breaker that specializes in switching capacitor banks.

Yes, we use it here as a switch for the capacitor cabinet, which is no different from the switch cabinet for other loads.

Hello: There is no fundamental difference between the switching of capacitors and the switching of ordinary components, and the capacitor should pay attention to the capacitive current of the capacitor, that is, the current is very large when the capacitor is just put into operation, and the two ends are charged when it is removed, and the arc is not easy to extinguish. In fact, some manufacturers boast of what capacitor special switching switch, as long as it is not a synchronous switch or thyristor zero-crossing switch, the others are blowing, from a practical point of view, as long as there is a contact switching switch capacity with sufficient margin, large enough, can meet the requirements, but the service life of the contact switch must not be compared with the non-contact zero-crossing switch.

However, the switching of the reactive power compensation device should consider the reactive power characteristics, that is, the change frequency of the reactive power, the vacuum circuit breaker is used as the switching of the reactive power compensation device, there is certainly no problem from the breaking current, it is a good choice to use it under the stable reactive power change and fixed compensation scheme, but it can not be applied to the reactive power automatic compensation device, first of all, the breaking operation is not flexible enough, and then the vacuum circuit breaker is not suitable for frequent switching operation. Therefore, in general, the automatic compensation device uses a vacuum contactor to switch the capacitor bank.

ZN12 indoor vacuum circuit breaker is suitable for 35kV three-phase AC.

In the 50hz power system, the arc chamber of this circuit breaker is a porcelain structure.

With longitudinal magnetic field contacts, it has a small volume and produces diffusion when it is broken.

The arc current is distributed consistently on the contact, there is no local melting, and it also has a low arc energy voltage (20-200V) and a low cut-off value (4-15A), and is equipped with a high-reliability operating mechanism.

This circuit breaker adopts DYT-1 spring energy storage mechanism, which can be used for AC energy storage.

DC operation, which can also be operated manually. This circuit breaker uses special contacts.

material, so that the interrupting capacity of the interrupter is high, and has a long electrical life.

This circuit breaker has simple structure, strong breaking ability, long life, and complete operation functions.

Dangerous and simple maintenance, suitable for the control of power distribution systems such as power plants and substations.

The protection switch is especially suitable for breaking important loads and frequent operation places.

The type circuit breaker is an indoor device with a three-phase AC 50Hz rated voltage of the concept.

The mechanism of this circuit breaker is designed as a whole with the arc extinguisher system, and the special Siemens 3AF spring operating mechanism uses two electric motors for AC and DC energy storage operation, and can also be operated manually.

This product is designed with: 350mm, 400mm, 460mm and other interphase distances, which is more convenient to use with different types of switch cabinets.

It can be used in a stationary cabinet or in a cabinet.

Xi'an Huayi high-voltage switch manufacturing.

Xi'an Huayi high difficulty banquet auspicious pressure switch manufacturing ****.

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