Model: VSG-12/630-210
describe
Description
General
VSG type indoor high-voltage vacuum circuit breaker is suitable for switching various loads of different nature and frequently operated in the three-phase AC 50Hz, rated voltage 7.2kV-40.5kV power system. And the protection and control of substation electrical equipment. It can be equipped with KYN28A and other central handcart type switch cabinets, and can also be equipped with XGN fixed type switch cabinets.
VSG type indoor high-voltage vacuum circuit breaker complies with the national standard GB1984 “AC high-voltage circuit breaker”, JB/T3855 “3.6 ~ 40.5kV indoor AC high-voltage vacuum circuit breaker” and IEC60056 “high-voltage AC circuit breaker” standard. It meets the ” 10- 35kV Indoor High Voltage Vacuum Circuit Breaker Ordering Specifications”.
environmental conditions
1. The ambient air temperature does not exceed 40°C, and the average value measured within 24 hours does not exceed 35°C.
2. The minimum ambient air temperature for the “-5 indoor” grade is -5°C, the “-15 indoor” grade is -15°C, and the “-25 indoor” grade is -25°C. The “-25 room” level is 15°C, -25°C.
3. The influence of solar radiation is negligible.
4. The altitude does not exceed 1000m.
5. The surrounding air is not heavily polluted by dust, smoke, corrosive and/or flammable gases, vapors or salt spray.
Technical Parameters
No. |
thing |
unit |
data |
|
1 |
Rated voltage |
Voltage |
12 |
|
2 |
rated frequency |
hertz |
50 |
|
3 |
Rated insulation class |
1min power frequency withstand voltage |
Voltage |
42 |
Rated lightning impulse withstand voltage |
Voltage |
75 |
||
4 |
rated current |
A |
630/1000/1250/1600/2000/2500/3150/4000 |
|
5 |
Rated short-circuit breaking current Rated short-time withstand current (effective value) |
K |
20/25/31.5/40/50 |
|
6 |
Rated short-circuit making current (peak value) Rated dynamic current (peak value) |
K |
50/63/80/100/125 |
|
7 |
Rated short-circuit breaking current breaking time |
era |
30,50 |
|
8 |
Rated thermal stabilization time |
S |
4 |
|
9 |
Nominal operating sequence |
O-0。3s-CO-180s-CO |
||
10 |
Mechanical life |
era |
30000 |
|
11 |
Rated breaking current of a single capacitor bank |
A |
630 |
|
12 |
Breaking current of single rated capacitor bank |
A |
400 |
|
13 |
Rated back-to-back capacitor bank breaking current |
s |
4 |
painting