Working principle of grounding switch
Grounding switch has the ability to close short-circuit current. When the line grounding fault is removed, the shallow power supply current of the fault line is formed by the adjacent running lines, and the shallow power supply loop is eliminated by closing the quick grounding switch, and then the grounding switch is quickly opened to ensure the success of automatic reclosing of the line.
The quick grounding switch is generally installed on the side of the outlet disconnector near the line, which has two main functions: one is to break the capacitive current generated by classical induction and the inductive current generated by electromagnetic induction on parallel overhead lines; On the other hand, when the insulator in the shell creeps or the shell arcs, the quick grounding switch will quickly ground the conductive main circuit and cut off the fault current through the circuit breaker.
Grounding switch manufacturer
1, Hong Kong Baoguang Electric Group Co., Ltd. specializes in producing and selling GN30 disconnectors, GN 19 disconnectors, ZW8 vacuum circuit breakers, ZW32 vacuum circuit breakers and 12kV-40.5kV indoor and outdoor vacuum circuit breakers (VS 1, ZW8, ZW32, VS/kloc). ).
2. Shanghai Minsai Electric Appliance Co., Ltd. is a company specializing in the production and processing of electrical appliances, raw materials and other products, with a complete and scientific quality management system. The integrity, strength and product quality of Shanghai Minsai Electric Co., Ltd. have been recognized by the industry. Welcome friends from all walks of life to visit, guide and negotiate business.
3. Zhejiang Gao Ling Intelligent Equipment Co., Ltd. is a company specializing in the production and processing of vacuum circuit breakers, high-voltage load switches, high-voltage disconnectors, high-voltage complete cabinets, raw materials and other products, with a complete and scientific quality management system. The integrity, strength and product quality of Zhejiang Gao Ling Intelligent Equipment Co., Ltd. have been recognized by the industry. Welcome friends from all walks of life to visit, guide and negotiate business.
Function of grounding switch
There are two kinds of grounding switches, namely maintenance grounding switch and quick grounding switch. Maintenance grounding switch configuration, located next to the disconnectors on both sides of the circuit breaker, only plays the role of grounding on both sides of the circuit breaker during maintenance. The quick grounding switch configuration is located at the outgoing side of the sound insulation switch near the line, and has two functions:
(1) Open and close the capacitance circuit generated by electrostatic induction and the current induction generated by electromagnetic induction of parallel overhead lines;
(2) When the insulator in the enclosure generates creepage or arc in the enclosure, the quick grounding switch will quickly ground the main circuit and cut off the fault current through the circuit breaker.
The above is what Bian Xiao told you about grounding switch. I hope you can better understand the grounding switch after reading what I have shared above. Grounding switch is still recognized by everyone in our life. Moreover, the installation method of grounding switch is also very particular. If the installation is not correct, it is easy to fail to achieve good results. In addition, attention should also be paid to the grounding switch when it is used, which has good safety and cannot be used indiscriminately. In particular, the grounding switch of high-voltage circuit should be maintained regularly, otherwise his hidden danger is very great.
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