一、Ordinary vacuum circuit breaker:

1. Modular structure design, flexible expansion.

2. Manual operating mechanism can be used without the need for operating control power supply;

3. Through the inrush current controller, the functions of overcurrent protection and current limited speed breaking protection can be realized;

4. The overcurrent delay time has multiple adjustable gears, and the rated current can be selected as 100/200/300, 200/400/600;

5. The current limited speed breaking protection current multiple has multiple adjustable gears, and the speed breaking protection delay has multiple adjustable gears.

二、Demarcation type vacuum circuit breaker:

1. Adopt microcomputer-based relay protection and monitoring device;

2. Zero sequence current can distinguish faults inside and outside the demarcation;

3. The opening and closing circuits adopt anti-misoperation design and have anti-misjump function;

4. It has the function of reclosing after acceleration: when the switch recloses on a permanent fault, it will accelerate the tripping.

三、Automated vacuum circuit breaker:

1. It has three reclosing settings, and the delay time can be adjusted;

2. It has the functions of three-stage overcurrent protection, current speed breaking protection, limited current speed breaking protection and overcurrent protection;

3. It can be equipped with RS485/232 communication interface, or through fiber, wireless background for real-time monitoring, automated control and communication functions.