When conducting motor maintenance, will you encounter such a problem: repaired after a hard dayTorque motorWork less than a month and burned out; Open the motor to see, found that the cause of the burn is actually the phase insulation paper is not placed in place, resulting in the phase insulation breakdown and burn. todayMori machineXiaobian will talk to you about how to do a good job of interphase insulation of the motor.
The first thing we need to determine is the size of the interphase insulation paper, which is generally from the top of the slot insulation paper to the top of the slot insulation paperTorque motorThe upper end of the end coil for interphase insulation height; The span of the coil on the motor is used as the length of the insulating paper; In the next insulation paper, once in place, do not need to use scissors to trim, insert the insulation paper from the root of the coil, two hands to pull down the insulation paper, once in place, this has a certain relationship with the coil to straighten out, the end shape is better; Here, it should be noted that the interphase insulating paper must be pressed to the upper end of the slot insulating paper, otherwise the insulating paper is not in place, and the two coils of different phases are not separated, there will be too much current and it is easy to be broken down.
When placing the interphase insulation paper, do not separate several wires or one wire of different coils to the interphase insulation paper coil; When the insulation paper is placed, check whether the amount is sufficient. ifTorque motorThe slot insulation paper extends out of the slot port is very short, less than half a centimeter, then the size of the coil is small, the form is difficult to go offline and the insulation paper is not good, easy to ground leakage.
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