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Safety and operation of capacitor cabinet

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  • Time of issue:2020-12-07 12:54
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(Summary description)

Safety and operation of capacitor cabinet

(Summary description)

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2020-12-07 12:54
  • Views:0
Information

The working principle and composition of the capacitor cabinet

It refers to closing the switch and the circuit breaker, the reactive power compensation controller outputs a control signal according to the phase difference of the input cabinet voltage and current, and controls the closing and opening of the AC contactor, thereby controlling the input and exit of the capacitor.

Generally speaking, the capacitor cabinet is composed of cabinet shell, bus bar, isolating switch, fuse, contactor, thermal relay, capacitor, arrester, primary and secondary conductor, junction box, power factor automatic compensation control device, panel meter, etc.

长沙恒开电气设备有限公司

Safety and operation of capacitor cabinet
1. Before opening the high-voltage capacitor compensation cabinet, the circuit breaker or isolating switch must be disconnected to make the discharge device of the high-voltage capacitor compensation cabinet automatically discharge. The cabinet door can be opened after three minutes, and manual unloading is required after opening the cabinet door.

2. The special noise compensated by the high-voltage capacitor during operation is a precursor to the collapse of the internal insulation. The operation should be stopped immediately to find the wrong high-voltage capacitor compensation.

3. The expansion of the high-voltage capacitor compensation shell is due to the separation of the medium and the release of gas due to overvoltage. The operation should be stopped immediately to find the faulty high-voltage capacitor compensation.

4. It is prohibited to turn on immediately after disconnecting the high-voltage capacitor compensation. This will seriously damage other electrical equipment and the high-voltage capacitor compensation itself. Usually, a time interval of more than three minutes is required. For automatic switching capacitor cabinets, if the power factor of the grid changes rapidly, the delay time should be appropriately extended.

5. High-voltage capacitor compensation may amplify voltage and harmonics. The user should state the company's voltage and harmonics when placing an order for special processing. During the operation of the capacitor, the high-voltage capacitor compensation must be checked from time to time. If it is abnormal, it should be cut off immediately.

6. The inside and outside of the high-voltage capacitor compensation device must be well ventilated to extend the service life of the capacitor.

7. Keep the high-voltage capacitor compensation surface clean to avoid arcing accidents.

8. Periodically measure and record the infrared temperature on the capacitor cabinet.

Contact us

Address: Building 3, Xingsha International Enterprise Center, Changsha Economic and Technological Development Zone
Phone:0731-85524209
Email:cshk@cshkdq.com

Changsha Hengkai Electrical Equipment Co., Ltd.