What are the five defenses of high voltage switchgear?
High-voltage switch refers to the electrical products used in the power system power generation, transmission, distribution, power conversion and consumption from the on-off, control or protection, voltage level in the 3.6kV ~ 550kV electrical products, including high-voltage circuit breakers, high-voltage isolation switch And grounding switch, high-voltage load switch, high voltage automatic reclosing and segmentation device, high-pressure operating mechanism, high-voltage explosion-proof power distribution device and high-voltage switchgear etc. High-voltage switch manufacturing is an important part of the power transmission equipment manufacturing industry and occupies a very important position in the entire power industry. So what are the five defenses of high voltage switchgear ? Let's take a look with Xiao Bian below!
1. After the vacuum circuit breaker trolley in the high voltage switch cabinet is closed at the test position, the trolley circuit breaker cannot enter the working position. (Preventing closing with load)
2. When the grounding knife in the high-voltage switch cabinet is in position, the trolley breaker cannot enter or close the gate. (Preventing closing with a grounding wire)
3. When the vacuum circuit breaker inside the high-voltage switchgear is working during closing, the mechanical and cabinet doors on the rear door of the panel are locked by the grounding knife. (to prevent accidental charging interval)
4. The vacuum circuit breaker inside the high-voltage switchgear is closed during operation, and the grounding knife cannot be put into operation. (Prevention of live grounding)
5. When the vacuum circuit breaker inside the high-voltage switchgear is in operation closing operation, it cannot exit the working position of the car breaker. (Prevention of load broaching)
Xiao Bian concludes: The above is about the five defenses of high-voltage switchgear . We hope to help you. More home improvement knowledge, please pay attention to this site information!
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