Product function of DC circuit breaker

The DC circuit breaker has super-class current-limiting performance, which can accurately protect relay protection and automatic devices from overload, short-circuit and other fault hazards. The DC circuit breaker has the advantages of current limiting and arc extinguishing capabilities. After a large number of comprehensive scientific experiments, it can achieve full selective protection among the main (sub) screen, protection screen, and relay screen in the DC system below 3000Ah.

The DC circuit breaker adopts a special arc extinguishing and current limiting system, which can quickly break the fault current of the DC power distribution system and greatly improve the level difference coordination. The DC circuit breaker is especially aimed at accidents such as skipping and tripping between the test and protection screen and the power distribution screen in the DC system of power engineering. This series has excellent performance and can avoid the above-mentioned faults. The level difference coordination characteristics of DC circuit breaker products are the best among similar products at home and abroad.

The principle of hybrid DC circuit breaker is simple and straightforward, and the technology is relatively mature. The main focus of its development is:

1) Improve the operating speed and reliability of mechanical switches;

2) Reduce the number of components of the overall circuit breaker;

3) Reduce the size of the circuit breaker;

4) Reduce costs and improve application feasibility.