In the case of missing motor nameplates, if we want to knowThree-phase asynchronous motorThe number of poles, what should be done? Today, Senli Motor Xiaobian will take you to understand together, aboutAsynchronous motorThe number of poles view method.

       When the motor nameplate is lost, we commonly use a multimeter to test and judge, this method is very simple, only need to openThree-phase asynchronous motorRemove the power cord and the star or triangle connection power cord in the use of a multimeterR×100ΩFile, available from6Two leads of any phase winding are found in the induction motor leads. Then use the range switch to switch to the currentμAFile and replace the marker with a crocodile clamp after firmly clamping the two winding leads found above.

       At this time, we can use the hand to rotate the three-phase asynchronous motor shaft slowly, uniform rotation, here to carefully observe the number of swings of the multimeter pointer, the pointer each swing, indicating that the positive and negative of the current in this phase winding will change once, from here we can determine how many pairs of poles the motor.

       This method is actually to use the rotor of the asynchronous motor to rotate a week at a uniform speed, the residual magnetic flux of the rotor to cut the stator winding, in order to induce a small induced electromotive force, and the resulting current makes the pointer of the multimeter swing. Therefore, if it is a three-phase asynchronous motor that has not been used for a long time, there may be no pointer reaction, this is because the remanence of the motor has disappeared, here we only need to install the normal wiring method of the motor, connect the power line, first energizing it for a few minutes, and the stator winding will get remanence after the power off.

       Shengzhou Senli Motor,Three-phase asynchronous motor manufacturers,3KWAnd the following small power motor manufacturers, support can be providedOEM/ODMCustomization, specification customization, appearance customization, special shaft customization and color customization. We provide customers with fast proofing services, complete quality inspection reports, in case of technical problems, technicians24We'll be there within the hour.

       Available if needed1688Search factory name "Shengzhou Chaoli Electric Appliance Factory" , Or online consultation message, we will have business personnel to get in touch with you, you can also contact us directly0575-8378-1127.