Classification and basic requirements of the isolating switch

Wenzhou Lehmann is the leader of strip switches and strip isolation switches. 2013 explosion models, domestic tender products, Jin Miller type strips, new models complete, European quality, domestic prices. 13857770352 Huang Linna isolating switch is used to isolate the power supply, and the electrical equipment that needs to be repaired is reliably isolated from the live power grid to ensure the safety of the maintenance personnel; the switching operation (inverted busbar operation) is used in the circuit of the double busbar system. The isolating switch switches electrical equipment or power lines from one set of busbars to another; connect or disconnect small current circuits.
According to the number of insulation pillars, it can be divided into single-column, double-column and multi-column isolation switches;
According to the operation mode of the knife, it can be divided into four types: horizontal rotary type, vertical rotary type, swing type and plug-in type;
According to the presence or absence of the grounding knife, it can be divided into two types: grounding knife and grounding knife;
According to different installation locations, it can be divided into indoor and outdoor;
According to different operating mechanisms, it can be divided into manual, electric and pneumatic types.
The isolating switch should have a clear breaking point to easily identify whether the electrical equipment is disconnected from the power supply; there is sufficient insulation distance between the disconnecting points of the isolating switch to ensure that it will not cause an impact in the case of overvoltage and phase-to-phase flashover. Wear the safety of the crisis staff; should have sufficient short-circuit stability, can not be automatically disconnected due to the action of electric power, otherwise it will cause serious accidents; requires simple structure and reliable operation; the main isolation switch and the grounding isolating switch should be mutually Interlocking, to ensure that the disconnector is disconnected first, then the grounding knife is closed; the grounding knife is disconnected first, and then the operating sequence of the isolating switch is closed.
Lehmann Electric specializes in the production of strip switches, strip disconnectors


















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