Electric motors, three lines are connected, is not the motor is broken?
Depending on the environment and frequency of use, the form is different. Different forms of motor, its characteristics are not the same. At present, permanent magnet DC motors are widely adopted in electric vehicle motors. The so-called permanent magnet motor, refers to the motor coil using permanent magnet excitation, and do not use coil excitation mode. In this way, the electric energy consumed by the exciting coil is eliminated, and the electromechanical conversion efficiency of the motor is improved, which can reduce the traveling current and prolong the continuous mileage for the electric vehicle with Limited vehicle energy
To measure the resistance of the smallest gear to test, to see if the resistance is 0, and if indeed 0, that is short circuit. Three phase motor has internal resistance, the three-phase resistance between the phase difference is small, then the motor is good, if the difference is large, then it may be broken.
According to the general form of electric motor electric motor to points, can be divided into brushless motor and brushless motor two categories; according to the mechanical structure of the motor assembly points, generally divided into "teeth" (high speed motor, need to go through the gear) and "toothless" (without motor torque output any reduction in two categories).
