The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their use range. The division of high and low voltage lines is relatively vague. Generally, 3kV or more is called high-voltage electrical equipment. Low-voltage circuit breakers, also known as automatic switches, are also known as "air switches". They are also low-voltage circuit breakers. They are electrical appliances that have both manual switching and automatic voltage loss, undervoltage, overload, and short-circuit protection. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off circuits when they are severely overloaded or short-circuited or under-voltage faults. Their functions are equivalent to fuse switches and A combination of under-heat relays, etc. Moreover, it is generally not necessary to change parts after breaking the fault current, and has been widely used.

Dongguan Xunwang Hardware Products Factory prompts you, the following is the classification of products

According to the operation mode: there are electric operation, energy storage operation and manual operation.

By the structure: there is a universal type and a molded case.

Classified by usage category: Selectable and non-selective.

According to the arc extinguishing medium: oil-immersed, vacuum and air.

According to the speed of action: there are fast type and normal type.

According to the number of poles: there are unipolar, dipole, tripolar and quadrupole.

According to the installation method: there are plug-in, fixed and drawer type.

The high-voltage circuit breaker (or high-voltage switch) is the main power control device of the power plant and substation. It has arc-extinguishing characteristics. When the system is in normal operation, it can cut off and connect the line and various electrical equipment. Load and load current; when the system fails, it cooperates with the relay protection to quickly cut off the fault current to prevent the expansion of the accident range. Therefore, the work of high-voltage circuit breakers directly affects the safe operation of the power system; there are many types of high-voltage circuit breakers, which can be divided into: oil circuit breakers (multi-oil circuit breakers, oil-less circuit breakers) according to their arc-extinguishing. , sulphur hexafluoride circuit breaker (SF6 circuit breaker), vacuum circuit breaker, compressed air circuit breaker, etc.-

Dongguan Xunwang Hardware Products Factory specializes in: metal stamping parts, computer heat sink processing, circuit breaker special motor, molded case circuit breaker, circuit breaker energy storage motor, circuit breaker motor, is a professional Dongguan motor production factory. Tel: 0769-86958478 Mr. Wang. Welcome all merchants to call to discuss cooperation!