• BKV3(VS1)-12KV vacuum circuit breaker
  • BKV3(VS1)-12KV vacuum circuit breaker
  • BKV3(VS1)-12KV vacuum circuit breaker
  • BKV3(VS1)-12KV vacuum circuit breaker
  • BKV3(VS1)-12KV vacuum circuit breaker

BKV3-12KV vacuum circuit breaker

BKV3(VS1)-12KV vacuum circuit breaker
in terms of mechanisms,VS1-Series vacuum circuit breakers are given special optimization to transmission parts. Modular spring mechanisms have such advantages as convenient maintenance, short power-off maintenance, high versatility of parts, and boast better compatibility with vacuum interrupters which greatly improves the technical parameters.

Share:

Product Description

BKV3-12KV vacuum circuit breaker

Product Description

BKV3(VS1)-12KV vacuum circuit breaker

BKV3-12 indoor H.V. vacuum circuit breaker is an indoor switchgear with three-phase, rated voltage of 12kV, control and protection for industrial and mining enterprises, power plants and substations, electrical facilities, and for frequent operation place adopting VET operating mechanism and circuit breaker integrated design can be used as a fixed installation unit can also be equipped with special advance mechanism, the composition of handcart unit used some of the main circuit can use the whole solid seal post with high reliability, maintenance-free, in order to achieve smaller circuit breakers, can be equipped with KYN28A 12 and other handcart switch cabinet. In the home it can also be used with fixed XGN switchgear.

VS1-Series circuit breaker features high stability and high reliability

In terms of mechanisms, VS1-Series vacuum circuit breakers are given special optimization to transmission parts. Modular spring mechanisms have such advantages as convenient maintenance, short power-off maintenance, high versatility of parts, and boast better compatibility with vacuum interrupters which greatly improves the technical parameters and delivers more excellent performance.

Applicable standards

1EC62271-100 High-voltage switchgear and control-gear-Part 100: Alternating-current circuit-breakers

Secondary circuit

VS1-Series vacuum circuit breakers adopt modular design for their secondary control circuit boards. The electric connection of the mechanisms employs high-grade self-fastener plugs, which both facilitates replacement and ensures reliable electrical connection * High-performance oil buffer

High-performance oil buffer

High-performance breaking buffer can markedly reduce the overshoot and rebounding amplitudes of the moving contact of a vacuum circuit breaker in breaking thus avoiding the loss of mechanical endurance due to partial over fatigue of vacuum interrupter bellows resulting from moving contact overshoot. As the rebounding amplitudes of the moving contact reduces, No re-ignition and restrike is found during the switching capacitor bank test

 

Item

Unit

20kA

25kA

31.5kA

40kA

Rated Voltage

kV

10

Max working voltage

kV

12

Rated Current

A

630

1250

1250
  1600
  2500
  3150

1250
  1600
  2500
  3150

Rated short circuit breaking current

kA

20

25

31.5

40

Rated short circuit making current (peak)

kA

50

63

80

100

Rated peak withstand current

kA

50

63

80

100

4s rated short time withstand current

kA

20

25

31.5

40

Rated insulation
  level

Power frequency withstand voltage

kV

42(fracture48)

Impulse withstand voltage

75(fracture85)

Rated sequence of operation

 

0-0.3s-CO-180s-CO

Mechanical life

time

10000

Breaking times of rated short circuit breaking current

time

50

Operating voltage

V

AC/DC110, 220

Clearance between open contacts

mm

11±1

Over travel (contact spring reduction length)

mm

4±0.5

Three-phase opening/closing asynchronous

ms

≤2

Contact closing bounce time

ms

≤2

Average opening speed

m/s

0.9~1.2

Average closing speed

m/s

0.4~0.8

Opening time

Under max operation voltage

s

≤0.05

Under min operation voltage

≤0.08

Closing time

s

≤0.1

Each phase main loop resistance

µΩ

≤40

Allowable attrition thickness of moving and fixed contact

mm

3

 


Sophisticated process equipment, testing instruments and strictly quality management systems

All assembly lines adopt highly precise pneumatic tools and clamps, enabling the fully- automatic assembly lines and online testing to avoid errors due to manual handling and operation


Advanced assembling jigs and testing equipments for the production lines effectively ensure the stability and conformity of mass production:


Precise spring performance testers provide force detection for the core spring elements of circuit breakers, ensuring stable and reliable operation of the circuit breakers:


The complete incoming inspection mechanism exercises tough control on the quality of purchased and outsourced parts
High-precision circuit breaker dynamic performance testers and loop resistance testers ensure the quality of VS1Series circuit breakers:


Before leaving the factory, circuit breakers have taken 300 times endurance tests;


Strict compliance with the ISo9001 quality management system ensures the consistent high quality of Series VS1-Series vacuum circuit breakers, and complete and swift technical support provides expert solutions.


* Switching synchronization
* Switching time
* Bounce time
* Insulation test of auxiliary and control circuits
* Endurance test
* Power-frequency withstand voltage test
* Mechanical characteristic test
* Loop resistance measurement

 

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

 

 

  • wechat

    +8613325976739: +8613325976739

Chat with Us