In order to meet the market requirements for high quality VCB as well as their adaptation with its switchgear, our company develops this new generation of VIB type indoor high voltage vacuum circuit breaker. It is three-phase AC, 50 Hz indoor power distribution equipment with the voltage of 12kV. It can be used for protecting and controlling equipments in the fields of power supply and distribution system such as substation and industrial and mining industry etc.
Specifications:
- General Description
- VIB series vacuum circuit breaker has taken into consideration of reliable interlock function which can be frequently operated at the rated current and with the capability of many times operations of breaking short-circuit current and fault current. This series of vacuum circuit breaker is an integrated unit by adopting the front and rear arrangement between operating mechanism and vacuum interrupters. It can be used for fixed installation unit and also can be used for independent track by equipped with Chassis.
- Product Standard:
- VIB type vacuum circuit breaker conforms to national standard GB1984-2003 , DL/T403-2000 and some stipulation of IEC62271-100:2001
Features:
- Technical characteristics:
- The vacuum interrupters of VIB type vacuum circuit breaker are used embedded poles by advance APG technology; the primary conducting part is capsulated into an integrated unit by using epoxy resin which makes the insulation condition of primary conducting parts against from impact by exterior environment, it can effectively prevent moisture, filths and the damage to the insulation property due to condensed water.
- The vacuum interrupter is vertically installed in an insulation house which is made up of epoxy resin cast by advanced APG technology; this kind of structure can maximally reduce the dust accumulation on the surface of vacuum interrupters which ensure the high resistance state even if under the damp, hot and serious filthy environment.
- The VIB type vacuum circuit breaker uses specialized vacuum interrupter with advanced material and design for their contact, it is with strong breaking capability and high reliability and performed the type test for its electrical life under the condition of auto re-close at class E2 level (the breaking operations reaches 274 times for different short-circuit currents) as per national standard, it is more accordance with the actual usage requirement and realized free of maintenance for its primary part.
- Main Technical Specification
- Rated voltage 12kV
- Rated current 630 1000 1250 1600 2000 2500 3150A
- Rated short circuit breaking current 20 25 20 25 31.5 40kA
- Rated peak withstand current 50 63 50 80 100kA
- Rated short time withstand current 20 25 31.5 40kA
- Rated short circuit making current 25 63 80 100kA
- Rated operating sequence 0-0.3s-CO-180s-CO,0-180s-CO-180s-CO(40kA)
- Minimum Order: Negotiable