VHM1 indoor ac vacuum circuit breaker is an indoor switch equipment with three-phase ac 50Hz and rated voltage of 12kV, which is equipped with permanent magnet operating mechanism developed by our company, which is used for the control and protection of electrical facilities in industrial and mining enterprises, power plants and sub-stations.This product has the high reliability and the long life and so on characteristic, specially is suitable for frequently operates, many times opens the short circuit current and so on the condition bad place.

Side mounted permanent magnet indoor ac high voltage vacuum circuit breaker

VHM1 series permanent magnet indoor high voltage vacuum circuit breaker is a new product independently developed by our company, which has a leading level in China. It is used in xgn15-12 (Z) box-type fixed ac metal enclosed switch equipment, which can replace the load switch as the incoming switch of the distribution substation and provide after-service protection for the outlet cabinet.At the same time, it can also be used as an outgoing switch to protect and control a distribution transformer with a capacity greater than 1250kVA, and as a contact circuit breaker for double power incoming lines.

VHM1 series permanent magnet indoor high voltage vacuum circuit breaker is three-phase ac 50Hz, rated voltage 7.2-12kv indoor high voltage switchgear.The circuit breaker conforms to China's national standard GB1984 ac high-voltage circuit breaker, JB3855 3.6-40.SkV indoor ac high-voltage vacuum circuit breaker, DL403 10-35kv indoor high-voltage vacuum circuit breaker ordering technical conditions and relevant IEC standards, and has reliable interlocking function.

VHM1 series permanent magnet indoor high voltage vacuum circuit breaker can be operated frequently, with the ability of multiple breaking and quick reclosure.

VHM1 series permanent magnet indoor high voltage vacuum circuit breaker is designed as front and rear sub-installation structure, which can be used as a fixed installation unit for side installation.

永磁式户内交流高压真空断路器

      VHM1 户内交流离压真空断路器是三相交流 50Hz，额定电压为12kV的户内开关设备，配装我公司自行研发的永磁操动机构，供工矿企业、 发电厂及变电站作为电气设施的控制和保护之用。该产品具有极高的可靠性和长寿命等特点，特别适用于频繁操作、多次开断短路电流等条件恶劣的场所。

侧装永磁式户内交流高压真空断路器

      VHM1 系列永磁户内高压真空断路器是本公司自主开发的具有国内领先水平的新产晶， 用于 XGN15-12(Z）型箱型固定式交流金属封闭开关设备中， 可代替负荷开关作为配电变电所的进线开关， 为出线柜提供后务保护；同时，又可作为出线开关保护和控制容量大于1250kVA的配电变压器， 还可作为双电源进线的联络断路器。
     VHM1 系列永磁户内高压真空断路器是三相交流 50Hz，额定电压7.2-12kV户内高压开关设备。断路器符合我国国家标准GB1984 《交流高压断路器》、 JB3855 《 3.6-40.SkV户内交流高压真空断路器》、 DL403 《10-35kV户内高压真空断路器订货技术条件》和相关的IEC标准，并且有可靠的连锁功能。
     VHM1 系列永磁户内高压真空断路器可进行频繁的操作， 具有多次开断和快速重合闸的能力。
     VHM1 系列永磁户内高压真空断路器设计成前后分装结构， 可以作为侧装式固定安装的单元。

1. High reliability, long service life, maintenance-free; 

2. The mechanical life of the first permanent magnet operation mechanism in China is up to 100,000 times;

3. Compared with the traditional operating mechanism, there is no need for mechanical detaching and locking device, and the number of parts and components is greatly reduced. When working, there is only one moving part, and the failure rate is extremely low.

4. The performance of the operating mechanism is very consistent with the characteristics needed for the opening and closing of arc extinguishing chamber;

5. Reliable bistable operation of closing and opening;

6. Anti-jump function:

7. Low voltage reject alarm function of control power supply; 

8. The mechanical manual brake has the same opening speed as the electric brake, which can be applied to emergency brake in case of secondary power failure;

9. Ac or dc energy storage operation, operating current less than 2A, can be done within 2 hours after power failure, a sub, sub, sub operation; 

10. Operation control circuit module with high reliability, which can withstand severe conditions such as lightning strike and surge during operation;

11. Strong universality, installation size is compatible with ZN63, VS1 and other series products.

VHM1 Technical parameters of side mounted permanent magnet indoor ac high voltage vacuum circuit breaker