Charging System Operation

Charging System Operation





The 21-SI 200 Generators are Systems Integral series generators. The Systems Integral series generators are equipped with a built-in regulator.

The solid state regulator and brush holder assembly attaches to the slip ring end frame. The regulator voltage setting cannot be adjusted.

The regulator is equipped with the following two terminals:

* The R (Relay) terminal
* The I (Indicator) terminal

The R terminal operates auxiliary equipment in some circuits such as the tachometer. The I terminal feeds an indicator lamp or gauge.

The rotor bearings contain enough grease in order to eliminate the need for periodic lubrication. Two brushes perform the following actions:

* Carry current through slip rings to the field coil mounted on the rotor.
* Provide long periods of attention-free service (under normal conditions).

The stator windings are assembled on the inside of a laminated core that forms part of the generator frame. A rectifier bridge connected to the stator windings contains six diodes. The rectifier bridge electrically converts the stator AC voltages to a DC voltage at the generator output BAT terminal. A diode trio that connects to the stator windings supplies the generator field current. A capacitor or condenser that mounts in the end frame performs the following actions:

1. Protects the rectifier bridge and diode trio from high voltages.
2. Suppresses radio noise.

No periodic maintenance or adjustment is required on the generator assembly.