12KV high-proto type high altitude vacuum contactor
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12KV high-proto type high altitude vacuum contactor
EVC8G series high-proto type high voltage vacuum contactor, selected the high-quality vacuum switch tube of the military factory. The structure is composed of metal frame and insulating bracket, which is firm and reliable, and the performance is more stable. The main circuit center can reach 190mm~210mm. The main circuit vacuum interrupter adopts solid-sealed structure, stable and reliable insulation performance, large creepage distance along the surface, large stroke and strong breaking capacity. It is suitable for plateau and high altitude of 4000 meters below sea level. It is used for remote access, analysis and frequent start and control of AC motors, transformers and capacitors in altitude area. There are two kinds of electromagnetic mechanism and permanent magnet mechanism.
Model recommended against altitude:
|
Altitude（m） |
Model |
Pole Distance(mm) |
|
≤2000 |
EVC8C-12kv |
165 |
|
2000～3000 |
EVC8G-12KV-T4（190） |
190 |
|
3000～4000 |
EVC8G-12KV-T5（210） |
210 |
|
4000～5000 |
EVC8C-24KV |
250 |
Main electrical parameters:
| Model | EVC8G-250A/12KV | EVC8G-400A/12KV | EVC8G-630A/12KV | EVC8G-800A/12KV | EVC8G-1000A/12KV |
| Rated voltage of the main circuit (kV) | 12 | 12 | 12 | 12 | 12 |
| Rated current of the main circuit (A) | 250 | 400 | 630 | 800 | 1000 |
| Closing capacity of the main circuit (A/100 times) | 2500 | 4000 | 6300 | 8000 | 8000 |
| Switching capacity of the main circuit (A/25 times) | 2000 | 3200 | 5000 | 6300 | 6300 |
| Breaking capacity limit (A/3 times) | 4000 | 4500 | 6300 | 8000 | 8000 |
| Mechanical life (ten thousand times) | 100 | 100 | 100 | 100 | 100 |
| Mechanical lock life (ten thousand times) | 10 | 10 | 10 | 10 | 10 |
| Electrical life (AC3) (ten thousand times) | 25 | 25 | 25 | 25 | 25 |
| Electrical life (AC4) (ten thousand times) | 10 | 10 | 10 | 10 | 10 |
| Power frequency withstand voltage of the main circuit (interrupted) (kV) | 52/60 | 52/60 | 52/60 | 52/60 | 52/60 |
| Phase-phase, phase-ground power frequency withstand voltage (kV) | 52/60 | 52/60 | 52/60 | 52/60 | 52/60 |
| Lightning impulse withstand voltage (kV) | 85 | 85 | 85 | 85 | 85 |
| Power frequency withstand voltage of the control circuit (kV) | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Rated operating frequency (times/hour) | 100 | 100 | 100 | 100 | 100 |
| Mechanical lock operation frequency (times/hour) | 120 | 120 | 120 | 120 | 120 |
| Terminal pressure (N) | >100 | >150 | >150 | >180 | >180 |
| Contact opening distance (mm) | 7±0.5 | 7±0.5 | 7±0.5 | 7±0.5 | 7±0.5 |
| Overtravel (mm) | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 |
| Contact resistance of the main circuit (μΩ) | ≦200 | ≦150 | ≦100 | ≦150 | ≦100 |
| Total weight (kg) | 50 | 50 | 50 | 52 | 52 |
EVC8G-12KV-T4 (190mm)
EVC8G-12KV-T5 (210mm)
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