What faults will occur if the car motor is damaged?
1 Answers
If the car motor is damaged, the generator will not supply power externally, and the battery power will be quickly depleted, leading to the car's inability to start. Below are the causes of motor damage and methods to diagnose it: Causes of motor damage: Overloading the motor increases the current, causing the motor to heat up and raise its temperature, ultimately burning the enameled wire or damaging the insulation layer, leading to motor failure; damage to the motor bearings can prevent the motor from rotating. When the motor cannot rotate, the current becomes very high, and being stuck for a few minutes can cause damage. Methods to determine if the motor is damaged: Ground fault testing: use a megger with one end grounded and the other end connected to the motor terminal to measure; separately measure the resistance of each phase to check for balance, inter-phase short circuits, or burnt coils; measure the inter-phase insulation of the coils to see if it has broken down.