What Causes Insufficient Power Generation in a Car Alternator?
1 Answers
"Too high or too low no-load voltage can cause insufficient power generation in a car alternator. Too high no-load voltage: Automatic voltage regulator malfunction. Excessive current in the no-load exciter field winding. Inspect the automatic voltage regulator; reset if the voltage setting is too high. Too low no-load voltage: Exciter field winding open circuit. Check if the exciter field winding resistance is infinite. Replace the broken winding or reconnect the circuit; severe short circuit in the main generator field winding. Excessive current in the exciter field winding. The main generator field winding overheats significantly, vibration increases, and the DC resistance of the field winding is much lower than normal."