Section 2
MAJOR GENERATOR COMPONENTS
3.Two excitation winding output leads (No. 2 and 6). These leads deliver unregulated excitation current to the voltage regulator.
4.Three (3) battery charge output leads (No. 55, 66 and 77).
2 
6 
11 
11
22
22
33
44
55 
66 
77 
Leads 2 & 6 =Stator Excitation Winding Leads 11 & 22 = Voltage Sensing Leads Leads 11 & 22, 33 & 44 = AC Power Windings Leads 55, 66, 77 = Battery Charge Windings
Figure 2-2. – Stator Output Leads
BRUSH HOLDER
The brush holder is retained in the rear bearing carri- er by two M5 screws. It retains two brushes, which contact the Rotor slip rings and allow current flow from stationary parts to the revolving Rotor. The posi- tive (+) brush is located nearest the Rotor bearing.
TO ENGINE
CONTROLLER
CIRCUIT BOARD
BCR
TO BATTERY | 66 |
15
77 | 66 |
BATTERY CHARGE WINDING
55
R1
0N
BCR = Battery Charge Rectifier
R1 = One Ohm, 25 Watt Resistor
Figure 2-4. – Battery Charge Circuit
EXCITATION CIRCUIT COMPONENTS
GENERAL:
During operation, the Rotor's magnetic field induces a voltage and current flow into the Stator excitation winding. The resultant AC output is delivered to a voltage regulator via an excitation circuit breaker (CB2).
POWER WINDING
22S11S
ELECTRONIC
0K
VOLTAGE
REGULATOR
BRUSHES |
Figure |
BATTERY CHARGE COMPONENTS
The Stator incorporates dual battery charge windings. A battery charge rectifier (BCR) changes the AC out- put of these windings to direct current (DC). Battery charge winding output is delivered to the unit battery via the rectifier, a 14 amp fuse and Wire No. 15. A one ohm, 25 watt resistor is connected in series with the grounded side of the circuit.
2A
CB2
4
26
DPE WINDING
0F 
4 FIELD
Figure 2-5. – Schematic: Excitation Circuit
EXCITATION CIRCUIT BREAKER:
The excitation circuit breaker (CB2) is
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