About the three-phase asynchronous motor can not start, or the load running speed is lower than the rated value of the fault and the treatment method. Now let Senli Motor Xiaobian take you to a simple understanding of it.

       Cause:

       1.The power supply is not connected, and the switch has one or two phases in the breaking state.

       2.The melt is blown

       3.Control device wiring error, orThree-phase asynchronous motorJoin triangular connections into star connections

       4.Overload protection device action

       5. There is a phase break in the stator winding or in the external circuit

       6.Short circuit in stator or rotor winding

        Solution:

       1.The joints on the line have oil and soot can be scraped clean with an electrician's knife; Tighten the bolt when the connector is loose; Check the contact of the switch, if it cannot be repaired, the switch should be updated.

       2.Replace with a new melt

       3.Check the wiring diagram in detail to correct, correct the wiring according to the correct connection

       4.If the selection and adjustment of the three-phase asynchronous motor overload protection equipment is improper, the setting value can be appropriately increased, such as the overload protection continuous action, it may be too small to select the motor, the motor can be replaced or the load can be reduced

       5.Use multimeter, megohm meter, etc. to check and determine the break of the stator winding, and deal with the fault as appropriate; Check the supply voltage

       6.When the partial short circuit occurs in the individual winding, the motor can still start, which can only cause the melt to fuse; If the short circuit is serious, the motor winding will smoke quickly, and the motor must be unwired and rewound

       Shengzhou Senli Motor isThree-phase asynchronous motor manufacturers, available if necessary1688Search "Shengzhou Chaoli Electric Appliance Factory", or contact us directly0575-8378-1127.