Product Description

VS1 -12KV fixed type indoor vacuum circuit breaker is rated voltage 12kV, three-phase AC 50Hz/60Hz Indoor high-voltage switchgear ,

applied for power stations, substations, and industrial and mining enterprises to control or  protection transmission and distribution systems ,

specially for the important high altitude breaking load and frequent operation place.

The Circuit breaker is manufacturing accordance with  national standard GB1984-2003,

DL / T403-2000<3.6 ~ 40.5kV Indoor Vacuum Circuit Breaker ordering technology>; and international IEC standards.

Circuit breaker operating mechanism for the spring energy storage type, can use AC and DC energy storage operations, can also be used manually.

Circuit breaker can also be equipped with long life permanent magnetic actuator, mechanical life can reached 60000 times , can be used for extremely Frequent operation place,

Circuit breaker designed to repackage the structure before and after, both can be used as a fixed installation unit, Can also be equipped with the chassis as used in the mounted unit.

Normal operation conditions:

1.Ambient temperature: not higher than +40 °C, not less than -15°C

2. Altitude: not exceed 1000m.

3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.

4. Earthquake intensity: not more than ten.

5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

Good features:

Damper with perfect performance
Thanks to the refined damper with perfect performance andnew cam gear with curvilinear design, the contacts rebounding
value during the breaker opening is reduced more andbreaker can be opened reliably. Besides, the bellows in vacuum
interrupter are avoided to be broken down due to contacts overbounding and also the mechanical lifetime of operating mechanism
is ensured.
Special design of repair without many tools
During the design for VS1 circuit-breaker, the installation andrepair must be taken into account. So for the disassembly of
parts or accessories, users need no special tools and the repairbecomes more convenient. Besides, all of the secondary
controlling components are in front of the operating mechanism,which also make maintenance and repair convenient.
Modularized operating mechanism
Modularized operating mechanism is another feature of VS1.It can be divided into closing module, opening module, mainaxis
module and secondary wiring module, which makemechanism have characteristic of standard manufacture
method, short producing period, convenient maintenance andrapid replacing. These modules are standard and applicable to
all VS1 so the costs of facilities management and maintenanceare reduced.
Self- lubricative bearing without oil
Self-lubricative bearing without oil used for VS1 circuit-breakeris very applicable to over-load and low-speed conditions and
avoids the lost-lubricative phenomena due to oil-lubricativebearing out of work for a long time. The free-maintenance can
be realized accordingly.
Conductors with silvered surface
All the conductors of VS1 circuit-breaker are disposed by silveredprocess so that it do not only reduce the contacting resistance
but also improve the electricity-conducting capacityof conductors. Thanks to the reduced resistance the heat from
circuit-breaker running can be decreased and the breaker's lifetimeis also lengthened.