Mine explosion-proof vacuum electromagnetic starter
Main application
The device is used in coal mines containing explosivegas (methane) and coal dust. It is suitable for the circuit center. To local control or remote control the start and stop of AC 50Hz, voltage 1140V, 660V or 380V, ungrounded three- phase asynchronous motor, and can be reversed at the stop.
The control unit WTR-200 of QBR-200, 400/1140(660) Mining explosion-proof AC vacuum soft starter (hereinafter referred to as soft starter) is a product independently developed by our company.It adopts advanced microprocessor and power electronic control technology, realizes the soft start of AC motor, eliminates mechanical and electrical shock to the maximum extent, prolongs the service life of equipment, and is an ideal replacement product of hydraulic coupler and other motor starting equipment.It has the characteristics of advanced technology, safe and reliable work, easy maintenance, big starting torque and long service life, and its technical performance has reached the international advanced level.
Technical characteristics
1.
Liquid crystal screen display.
2.Online protection monitoring
3.The parameters of panel adjustable.
3.RS485series communication function
Protection function
With the multiple protection functions as short circuit, overload, leakage and open-phaset
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