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Compact vacuum contactors of both,
fixed and draw out type, with optional
mechanical interlocks for forward and
reverse are available, which are well
known for the following salient features:
- Reliable arc quenching.
- Suitable for high switching frequency.
- Maintenance free and longer life.
- Low chopping current.
- Reputed vacuum interrupters.
- Suitable for mobile units / machinery mounting .
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TECHNICAL SPECIFICATIONS:
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| Rated
Voltage |
3.3
kV |
7.2kV |
12
kV |
Unit |
| Continuous
Current |
400 |
400 |
400 |
Amps |
| Interrupting
Capacity |
36 |
36 |
36 |
MVA |
| Interrupting
Current |
6300 |
6300 |
6300 |
Amps |
| Breaking
Current |
3200 |
3200 |
3200 |
Amps |
| Making
Current |
4000 |
4000 |
4000 |
Amps |
| Short
time current carrying capacity |
4400/12 |
4400/12 |
8000/1 |
Amps/sec |
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8800/1 |
8800/1 |
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Amps/sec |
| Over
current (peak) for 10mS |
85000 |
85000 |
40000 |
Amps |
| Switching
frequency |
1200 |
1200 |
1200 |
times/hour |
| Closing
Time /Opening time |
150/35 |
150/35 |
150/35 |
milli-second |
| Control
Supply Voltage |
110/220 |
110/220 |
110/220 |
Volts_DC |
| Power
requirement- Closing/Holding |
440/120 |
440/120 |
440/120 |
Watts |
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