Mining explosion-proof vacuum starter for coal mine
The unit is employed in coal mines made up of explosivegas (methane) and coal dust. It is suited for the circuit middle. To regional handle or distant handle the commence and stop of AC 50Hz, voltage 1140V, 660V or 380V, ungrounded 3- stage asynchronous motor, and can be reversed at the stop.
one. Swift opening structure
two. With regional handle and distant control function
3. With reliable mechanical locking and electrical locking operate
With the multiple safety capabilities as limited circuit, overload, leakage and open-period .
one.It is ideal for underground coal mine with explosive gasoline
two.The altitude is not much more than 2000 meters, and the ambient pressure is (.eight ~ one.1) × 105Pa
three.Where there is no dripping or drinking water invasion, the ambient temperature is -5ºC ~ +40ºC.
four.The relative humidity of the encompassing air is no a lot more than ninety five% (+25ºC).
five.H2o or other liquids should be prevented from getting into the comfortable starter.
six.On lines Hz, AC 50 voltage of 1140 V or 660 V or 380 VGas in the bordering medium that does not harm the steel or the insulation.
7.Pollution level 3.
8.Set up classes: III class
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