The CEMCS PM capacity's dedicated switching

Detailed Product Description

1. Products Summarization

In the compensation device, the switching is the important part which is related to the stable running of the compensation device, for the specialize of the capacitive load, it has a special demand for the contact’s technology of the vacuum tube, also the switching must has a long use-life and do less tremble during the switch’s open/close, especially if it rebound when the switch breaking, the arc will be reborn and do a impact to the capacity group and system, that will caused the damage of the capacity.

The normal vacuum breaker must has a large volume and a short life, although the vacuum contactor has a long life, but there’s a little distance between each contact and the closing distance of the machine part is short too, so the contact will be tremble easily and cause the incident.

Against the problems above, our company developed the CEMCS PM capacity switching, it is designed for the switching groups of capacity, the main contact is made up with the special metal, the contact distance is much longer too. The machine part is use the PM form and make a guarantee to the open and close the gateway and the switch’s life, it is the ideal switch for the capacitive load.

2. Technology parameter

The rated voltage: 12kV

The rated current: 630A

The rated frequency: 50Hz

The rated short-time tolerance current: 12.5kA

The rated peak tolerance current: 32kA

The rated short-circuit open current: 12.5kA

The rated short-circuit close current: 32kA

The time of the gateway’s open/close: close: 30-100ms; open: 18-50ms

The speed of the gateway’s open/close: close: 0.4+/-0.2m/s; open: 1.0+/-0.3m/s

The different time between the gateway’s open/close: <=2ms

The close gateway’s jump: <=2ms