Phenomena and causes of car generator breakdown

Car generator failure phenomena and causes The reasons why the generator fault light is on are: 1. The generator is not synchronized in parallel; generator temperature increases; the generator stator winding is damaged; the generator rotor winding is grounded; . Generator failure measurements: When generators are paralleled using the quasi-synchronous method, they must meet the three conditions of same voltage, cycle and phase when the three-phase load unbalance of the generator exceeds the allowable value of the rotor; the temperature will also increase. At this time, the load should be reduced immediately and try to adjust the system to reduce the imbalance of the three-phase load and reduce the rotor temperature within the allowable range. on the generator arc, the generator relay protection device will operate immediately, causing thethe main switch, field switch and emergency circuit breaker are turned on, and the generator stops working 4. If the rotor two-point earthing protection device is installed, its relay; will also act. At this time, the generator's main circuit breaker must be turned off immediately to prevent the generator from being connected to the system. Disassemble and stop, cut off the excitation switch at the same time, place the magnetic field rheostat. to the maximum resistance position and check the rotor and excitation system after stopping. @2019