Rapid detection of the three-phase asynchronous motor winding judgment method

Rapid detection of the three-phase asynchronous motor winding judgment method,1,balance of the three-phase winding resistance.The multimeter R x 1 Ω resistance,which leads to the cable resistance value of the (3),should be equal.Such as,cable or motor winding fault;Should further wholesalemotor.blogspot.com measurement on the junction pole of the motor,such as ranging,explain the motor winding is defective.2,ground check.The multimeter R x 10 k or R x 1 k resistance measurement cable core screw together (3) and the casing,the resistance value between the www.facebook.com/guohong.trading less than 0.5 M Ω,be affected with damp be

affected with damp;Close to zero,is probably the ground fault.3,check insulation between the phase

within.Can be connected patches on the terminal small electric motors will be

removed,polished terminal resistance perkins diesel generator value between the above three terminal,less than 0.5 M Ω,be affected with damp be affected with damp;Close to zero,is likely to be short circuit fault.4,the rotor can check.In the case of without load,with the hand gently turn the motor shaft,such as transfer,illustrate bearing failure.