How to measure the quality of an electric motor coil
4, detection of magnetic steel: A, short-circuit 3 big lines, there are strong electromagnetic resistance normal, resistance is small, for magnet steel demagnetization B, detection of idle current is large - demagnetization phenomenon (auxiliary means)
2, using the Holzer detector (the principle diagram it Forum) whether the fault detection of Holzer: A, A, B, C three, B normal lights flashing -- A, B, C in one or more flicker - Holzer damage C, a, B, C are not bright - red, black line breaker or Holzer damage3, check the motor winding line: A, 3 big lines should be interlinked, B, 3 big lines are connected with the shell - the resistance is infinite, normal, the resistance is too small --- to determine the short circuit. C, short circuit, 3 big lines, the motor has uniform electromagnetic resistance, no blocking phenomenon. A, disconnect 3 big lines, positive and reverse motor, should have no blocking phenomenon. If the positive reversal is electromagnetic resistance, it is judged that the coil is short circuited
Brushless low speed motor test program1, with Multimeter diode file detection motor, 8 lines whether there is short circuit or broken skin, timely troubleshooting
