630A 12KV GIS Circuit Breaker Switchgear With VCB Unit
MOQ:
1
Delivery Time:
30 days
Brand:
Knkong
Product Description
GB ISO 12KV Gas Insulated Switchgear Medium Voltage Ring Main Unit
Product Introduction
General
VCB unit, as known as V-unit has vacuum bubble, uses for breaking short-circuit current, one double-position disconnecting switch
is connected in series with the circuit breaker.
When the disconnecting switch at open position, the interlocked earthing switch can be closed to ground the cable cassing.
The operation between the VCB and the disconnecting switch, and the operation between the disconnecting switch and the
earthing switch are mechanically interlocked.
Service environment
- Air temperature: -35℃~+40℃
- Humidity: Monthly average 95%; Daily average 90%.
- Altitude:≤ 1000m (Up to 5000 m can be custom)
- Ambient air not apparently polluted by corrosive and flammable gas, vapor, etc.
- No frequent violent shake
Technical Data
| No. | Item | Unit | Parameter | |||
| 1 | Rated voltage | kV | 12 | 24 | 36 | |
| 2 | Rated frequency | Hz | 50/60 | |||
| 3 | Rated current | A | 630(1250*) | |||
| 4 |
1min Power frequency withstand voltage |
wet | kV | 38 | 50 | 70 |
| dry | kV | 48 | 60 | 85 | ||
| 5 | Lightning impulse withstand voltage | kV | 75 | 125/150 | 170 | |
| 6 | Rated short circuit breaking current (peak) | kA | 80 | 63 | 63 | |
| 7 | Rated active load and close circuit breaking current | A | 63 | 50 | 50 | |
| 8 | Rated transferring current | A | 1700 | 1200 | 1200 | |
| 9 | Rated short circuit making a current (peak) | kA | 80 | 63 | 63 | |
| 10 | Rated cable(line) charging breaking current | A |
50 and 10 50/10 |
|||
| 11 | Cable charge breaking current in earthing fault | A | 20 | 20 | 20 | |
| 12 | Rated withstand current (peak) | kA | 80 | 63 | 63 | |
| 13 | Short-time withstand current (2s) | kA | 25 | 20 | 20 | |
| 14 | Mechanism life | times | 5000 | 2000 | 2000 | |
Note: For short circuit breaking and the peak current is based on Fuse plus combination
Optional components:
Electric operating-AC 220/110V; DC 24/48/110/220V
Auxiliary contact 5 NO 5 NC
Full set of fuse
FTU communication interface
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Company
Knkong Electric Co.,Ltd
Location
No. 25 Street , Hanghai Road, Zhengzhou,Henan,China
Contact Person
Ken Chan (English)