The difference between air switch and vacuum circuit breaker
Air switch is our common name, and its correct name is air circuit breaker. Air circuit breakers are switching devices with multiple protection functions that can cut off and connect circuits under rated voltage and rated working current conditions. The type and mode of its protection function are selected by the user according to needs. Such as short-circuit protection, overcurrent protection, shunt control, undervoltage protection, etc. The first two types of protection are the basic configuration of air circuit breakers, and the latter two are optional functions. So the air circuit breaker can also cut off the electrical circuit under fault conditions (load short circuit, load overcurrent, low voltage, etc.).
Circuit breaker is a switching device similar to a light switch. Of course, the internal device of the circuit breaker is much more complicated than that of the light switch, but it does not affect its nature as a switch.
Differences between vacuum circuit breakers and air switches：
1. The full name of the air switch is air switch, also called "air circuit breaker", which is a type of circuit breaker. The reason why it is called "air" is that the power switch of this structure will generate an arc every time it is closed and opened. If the arc cannot be extinguished quickly at this time, it is easy to cause fire and harm the human body. The air switch uses plastic shell and air as arc extinguishing medium, which is also the biggest difference between it and other circuit breakers.
2. The voltage levels of vacuum circuit breakers and air switches are different. Air switches are only suitable for low-voltage occasions, such as home decoration distribution boxes, where air switches are usually used as main switches. Circuit breakers that cover air switches include both high-voltage circuit breakers and circuit breakers.
Vacuum circuit breakers have greater current energy than air switches.
Generally speaking, the difference between a vacuum circuit breaker and an air switch is that the internal structure of a vacuum circuit breaker is more complex, the accuracy requirement is higher, and the application is more extensive. The medium-voltage vacuum circuit breakers produced by Shaanxi West Power Tongzhong Electrical Co., Ltd. are deeply trusted by users for their excellent product quality and service.
VTZ(SC)-12 GD indoor three -position vacuum circuit breaker of Shaanxi West Power Tongzhong Electrical Co., Ltd. is a highly integrated combination appliance with internally integrated isolating switches, grounding switches, and sealed vacuum circuit breakers. It is used in 3.6~12KV power grids; industrial and mining enterprise protection control units; and urban community power distribution systems.
It has many product advantages:
1. Simple and convenient maintenance: It adopts modular structure and can be replaced or repaired as a whole; the later replacement of the closing and opening coils does not require the removal of other components, and the user can easily replace it, and no testing and adjustment are required after replacement, making the later operation and maintenance more convenient;
2. Highly integrated: It adopts modular frame design structure, highly integrated isolating switches, circuit breakers, grounding switches, sensors, interlocking mechanisms, etc.;
3. Humanized operation safety: The isolating switches, circuit breakers, and grounding switches are designed with forced interlocking to prevent wrong operation;
4. Miniaturized design: The minimum size of the cabinet is 500X1000X1800 (mm);
