| Model: | - |
|---|---|
| Brand: | - |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Other Electrical & Electronic |
| Label: | - |
| Price: |
US $1420
/ pc
|
| Min. Order: | 1 pc |
| Last Online:27 Feb, 2019 |
Vacuum circuit breaker Draw out type VED-12KV 1250A 25KA VCB with copper parts 210mm phase distance replace of VD4
VED-12 series indoor high voltage vacuum circuit breaker is suitable for 12kV air-insulated indoor switchgear, used as protection and control unit of power equipment of industrial & mining enterprise. Due to the super excellence, it is especially suitable for locations where requires the frequent operation under rated working current or multiple breaking under short circuit breaking current. The circuit breaker adopts the integrated design of operating mechanism and circuit breaker body, servers as not only fixed installation, but also draw-out type equipped with a special propelling mechanism.
VED-12 has two main types. One is Draw-out type. Model No. is VED-12D. The other is Fixed type. Model No. is VED-12F.
Service conditions
1 Environment temperature:-15°C~+40°C;
2 Environment humidity: Daily average relative humidity:≤95%, monthly average relative humidity:≤90%; Daily average saturated vapor pressure:≤2.2×10-3Mpa,monthly average saturated vapor pressure:≤1.8×10-3Mpa;
3 Altitude: Not exceed 1000m;
4 Earthquake intensity: Not exceed°ree;
5 Service location: No water, flammable or explosive matter, chemical corrosive gas or drastic vibration.
| No. | Item | Unit | Parameter | |||
| 1 | Rated voltage | KV | 12 | |||
| 2 | Rated frequency | Hz | 50 | |||
| 3 | Rated lightning impulse withstand voltage(1min) | KV | 75 | |||
| 4 | Rated short-time power frequency withstand voltage (1min) | KV | 42 | |||
| 5 | Rated short-circuit breaking current | KA | 20 | 25 | 31.5 | 40 |
| 6 | Rated current | A |
630,1000, 1250 |
630,1000, 1250,1600 |
1250,1600, 2000,2500 |
1600,2000, 2500,3150 |
| 7 | Rated peak withstand current | KA | 50 | 63 | 80 | 100 |
| 8 | Rated shorted-time withstand current | KA | 20 | 25 | 31.5 | 40 |
| 9 | Rated shorted-time making current(peak) | KA | 50 | 63 | 80 | 100 |
| 10 | Power frequency withstand voltage of secondary circuit(1min) | V | 2000 | |||
| 11 | Rated operation sequence | Off-0.3s-On&Off-180s- On& Off
Off -180s- On& Off -180s- On& Off* |
||||
| 12 | Rated breaking current of capacitor bank | A | 630/400(40kA 800/400) | |||
| 13 | Opening time(rated voltage) | ms | 20~50 | |||
| 14 | Closing time(rated voltage) | ms | 30~70 | |||
| Payment Terms: | TT/LC |
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