What kind of voltage regulator is used for Exciter stator?
All methods use an Automatic Voltage Regulator (AVR) to supply DC output to the exciter stator. The exciter rotor AC output is rectified to a DC input for the main generator rotor.
When does the alternator exciter wire light turn on?
(2) When the engine starts and the alternator is spinning the auxiliary field coils produce 12V so that the ignition light has 12V on its left side too. As its right side is also at 12V no current flows through the ignition light so it extinguishes.
Which is an auxiliary winding for generator exciter?
Auxiliary Winding (AUX). Each method has its individual advantages. All methods use an Automatic Voltage Regulator (AVR) to supply DC output to the exciter stator. The exciter rotor AC output is rectified to a DC input for the main generator rotor.
What happens if I Disconnect the EXC wire at the alternator?
If I disconnect the EXC wire at the alternator, the ign light goes out on the switch panel. So this is telling me that no wires were crossed, etc. However, here is the weird part: With the EXC wire disconnected at the alternator, I can put a test light on the end of the wire and to the battery negative.
How is the ECU connected to the starter motor?
This in turn induces current in the ground wires going to the ECU; or in other words, the ECU shares some of the starter motor current.
Where does the power ground terminal on an ECU go?
From there the current flows into the cylinder head or rotor housing, and it has to find its way from there back to the secondary of the ignition coil. On most modern coils this connects through the power ground terminal of the ignition coil. Therefore, to minimize electrical interference, this loop area has to be as small as possible.
(2) When the engine starts and the alternator is spinning the auxiliary field coils produce 12V so that the ignition light has 12V on its left side too. As its right side is also at 12V no current flows through the ignition light so it extinguishes.
Why does the ECU sit higher than the battery?
Let’s assume the grounding to the ECU from the battery is also substandard, which means that as injector duty cycle increases, the voltage drop between the ECU and the battery also increases. We now have a double effect causing the ECU ground to sit higher than the engine ground.