Power System
In power systems with large capacity and high voltage, such as power plants and substations, DC systems provide reliable power for relay protection, operation control, signal sound and emergency lighting equipment. As one of the most important components in DC systems, the stable and reliable operation of miniature DC circuit breakers directly guarantees the safety of the entire power system.
DC Power Supply
The booming development of the information industry has led to the rapid development of DC power supply industries such as communication power supplies, EPS, and UPS. Base stations and data centers have sprung up all over China. In order to ensure the high precision requirements of DC power supplies, DC circuit breakers, as the most important operating and protection components in the various levels of feeder circuits of DC power supplies, play a very important role in protecting equipment and limiting the scope of accidents with their reliable selective graded coordination.
Rail Transit and Electric Locomotives
Currently, my country's urban rail transit system uses DC power supply. [4] Most of its DC power supply is provided by high-power silicon rectifier devices. Due to the low overload capacity of silicon rectifier devices, the requirements for DC grid protection components are higher. A quick analysis of DC dedicated circuit breakers is an important component in rail transit.
Ships
In shipboard electrical and propulsion systems, DC circuit breakers are among the most critical components. They protect against faults in the power distribution system and electrical equipment, employing multiple safeguards to ensure the safety of the ship's power supply system and electrical equipment.
