vacuum interrupter for outdoor circuit breaker
Rated voltage12 KV
Rated current630A
Rated short-breaking current12.5/16/20KA
Company advantages:
1.professtional in producing vacuum interrupters from 1.14~40.5KV of more than 100 types
2.Professional experts and technicians
3.strict quality controll system and got 18 national patents
4. enjoys tax preferential policy as a hi-tech enterprise Product advantages:
Product advantages:
1.Once Seal-Exhaust Technique
2.Free painting technology
3.316L Stainless steel, easy-welding and environmental friendly .
4.Good quality &competive price
vacuum interrupter for indoor circuit breaker 12KV
ZN28 VS1 ZKTD630/12-20
ZN28 VS1 ZKTD1250/12-25
1) Main Technical Data
Main Technical Specification |
Unit |
Specification |
Rated voltage |
kV |
12 |
Rated current |
A |
630/1250 |
Rated frenquency |
HZ |
50 |
Rated short-time power frequency withstand voltage(1min) |
kV |
42 |
Rated lightning impulse withstand voltage |
kV |
75 |
Rated short-circuit breaking current |
kA |
20/25 |
Rated short-time making current(Peak) |
kA |
50/63 |
Rated opreations of short-cicuit breaking current interruption |
times |
30 |
Rated cloaed-loop breaking current |
A |
630 |
Rated active load breaking current |
A |
630 |
Rated cable charging breaking current |
A |
10 |
Rated single capacitor bank breaking current |
A |
400 |
Rated duration of short-circuit |
s |
4 |
Mechanical life |
Times |
20000 |
Contact closing force due to bellows and atmosphere |
N |
80±40 |
Counterforce at rated contact stroke |
N |
120±50 |
Circuit resistance at rated contact force |
μΩ |
≤20 |
Shelf life |
Years |
20 |
Contact erosion limit |
mm |
3 |
Weight of moving parts |
Kg |
≤1.3 |
2) Mechanical Data Required For Matched Vacuum Switchgear
Main Technical Specification |
Unit |
Specification |
Rated contact stroke |
mm |
10±1 |
Average opening speed |
m/s |
1.0±0.25 |
Average closing speed |
m/s |
0.65±0.15 |
Added contact force |
N |
2000±100 |
Contact bouncing duration at closing operation |
ms |
≤2 |
Contact bouncing bank amplitude of opening operation |
mm |
≤2 |
Three-pole simultaneity |
ms |
≤1 |
Dimension Drawing:
Company introduction:
Workshop and testing room
Packages:
Certification:
Company website: http://www.vtdq.com.cn/
Professional, Creative, Good quality and Excellent service
Welcome your inquiry, Welcome our cooperation!