SR 4 GENERATOR
SYSTEMS OPERATION
FIG. 1 SR 4 GENERATOR WITH SERIES BOOST
C
[Includes: 447, 448 & 449 frame (layer wound rotor - 208 V only); and all other frames (random
and layer wound rotors) except 580 frame and 447, 448, and 449 frame (with layer wound rotor).]
A1
REGULATOR MODULE
E3
SCR HEAT SINK
R2
VOLTAGE LEVEL RHEOSTAT
A2
RECTIFIER MODULE
E4
FIELD RECTIFIER HEAT SINK
R3
REGULATOR GAIN RHEOSTAT
A3
CONTROL MODULE
ES
SERIES BOOST HEAT SINK
R4
REGULATOR POWER RESISTOR
C1,3
RFI SUPPRESSION CAPACITOR
F1
FUSE
R5
DAMPING RESISTOR
C2
SUPPRESSION CAPACITOR
L1
SUPPRESSION REACTOR
R6
SUPPRESSION RESISTOR
C68
SERIES BOOST CAPACITOR
L2
SCR REACTOR
RFA
REVOLVING FIELD ASSEMBLY
CR1-6
ROTATING RECTIFIERS
L3
EXCITER FIELD
T1
VOLTAGE DROOP TRANSFORMER
CR7,8
SURGE SUPPRESSION DIODES
L4
EXCITER ARMATURE
T2
CURRENT TRANSFORMER
CR9
CONTROLLED RECTIFIER
L5
ROTATING FIELD
T3
VOLTAGE SENSING TRANSFORMER
CR10
FIELD RECTIFIER
L6
STATOR
O
TERMINAL BOARD NUMBER
CR11
SURGE SUPPRESSION DIODE
TP
THERMAL PROTECTOR
WIRE NUMBER
E1
POSITIVE HEAT SINK
R1
VOLTAGE DROOP POTENTIOMETER
SPADE TERMINAL NUMBER
44