Classification, Application And Characteristics Of Sf6 Circuit Breaker Operating Mechanism

How is sf6 circuit breaker operating mechanism classified?

According to the arc extinguishing device, the arc extinguishing medium can be divided into:

(1) Oil circuit breaker (low-oil circuit breaker and high-oil circuit breaker);

(2) Air circuit breaker;

(3) Magnetic blow circuit breaker;

(4) Vacuum circuit breaker;

(5) Sulfur hexafluoride circuit breaker;

According to the nature of the operating mechanism, it can be divided into:

(1) Electric operating structure circuit breaker;

(2) Hydraulic operating structure circuit breaker;

(3) Pneumatic operating structure circuit breaker;

(4) Spring energy storage operating structure circuit breaker;

(5) Manual operating structure circuit breaker;

According to the installation location, it can be divided into:

(1) Indoor circuit breaker;

(2) Outdoor circuit breaker;

(3) Explosion-proof circuit breaker;

What are the characteristics of sf6 circuit breaker spring mechanism?

The vacuum circuit breaker has the characteristics of small contact opening distance, short arc burning time, and slight contact burn when breaking the fault current. Therefore, the vacuum circuit breaker requires small operating energy and fast action. It also has the advantages of small size, light weight, small maintenance workload, fireproof, explosion-proof, and low operating noise.

⑴ Features:

① Strong arc extinguishing ability, short arc burning time, and short full breaking time.

② Small electrical wear of the contacts, long electrical life, and the contacts are not corroded by harmful gases from the outside world.

③ The small contact opening distance reduces the operating work of the operating mechanism and the mechanical life is also long.

④ Simple structure, small maintenance workload, vacuum arc extinguishing and contacts do not need to be repaired.

⑤ Small size and light weight.

⑥ Small environmental pollution.

⑦ Suitable for frequent operation and rapid disconnection, especially suitable for disconnecting capacitive load circuits.

Purpose of vacuum circuit breaker:

Suitable for use as power distribution and control equipment, especially for frequent operation, control of high-voltage motors, cutting capacitor banks, protection of large silicon rectifier devices and other high-voltage electrical equipment.