An electric control device for an explosion-proof shearer motor
An explosion-proof, electromechanical technology, applied in the direction of AC motor control, electrical components, control systems, etc., can solve problems such as inability to effectively guarantee personal safety, achieve the effect of reducing human and material loss, avoiding trouble, and improving explosion-proof requirements
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[0026] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.
[0027] Such as figure 1 As shown, the electric control device of an explosion-proof shearer motor in the present invention has a magnetic starter installed in the slot switch, the conversion controller and the isolation switch QS also include a control transformer KB, wherein the isolation switch QS is located in the The main circuit of the motor M is connected to the three-phase power output from the secondary side of the magnetic starter in the slot switch; the primary side power supply of the control transformer KB is connected to the secondary side of the magnetic starter, and the first secondary side power supply circuit is connected to The remote control control circuit; the second secondary side power supply circuit is connected to the coal mining motor left / right traction, raising / lowering control circuit; the lead-out line of the magnetic s...
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