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Application
Mining explosion proof electric coal drill transformer comprehensive protection device is applicable in coal mine and around places full of explosive gas mixture such as methane, coal dust and so on, it’s mainly used as remote control of 127V, 1.2kW and 1.5kW hand-held electric coal drill, short circuit, overload and leakage protection.
Features
Adopts leading circuit, remote control the start and stop of electric coal drill, cable has no power when not drilling. It’s safe and reliable, and has short circuit, leakage protection and insulation instruction.
Main technical parameters
|
Type |
ZBZ-2.5/660(380)Z |
ZBZ-2.5/1140(660)Z |
ZBZ-4/660(380)Z |
ZBZ-4/1140(660)Z |
|
|
Main transformer |
Connection mode |
△/△or Y/△ |
△/△or Y/△ |
△/△or Y/△ |
△/△or Y/△ |
|
Rated voltage |
660(380)/133 |
1140(660)/133 |
660(380)/133 |
1140(660)/133 |
|
|
Rated current (A) |
2.19(3.79)/10.85 |
1.26(2.19)/10.85 |
3.5(6.08)/17.4 |
2.02(3.580/17.4 |
|
|
Power of controlled electric drill |
1.2 |
|
2×1.2（1.5） |
|
|
|
Leakage protection |
Operating value(KΩ) |
2±0.2 |
|
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Operating time（s） |
＜0.25 |
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Leakage locking |
4±20% |
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Short circuit protection |
Distance (m) |
≤150（4mm2Cable） |
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Operating time(m) |
<0.1 |
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Outline dimension Width ×Depth×Height |
520×505×654 |
520×645×654 |
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Weight |
98 |
122 |
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Cable O.D. |
8-19 |
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