Section 6 - Wiring Diagrams; Ac Wiring - Mgg155 (120V Gcb) - Generac Power Systems MGG155 Operating Manual

Gaseous generator
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AC WIRING - MGG155 (120V GCB)

P.M. ROTOR
N
S
P.M. STATOR
TO DC WIRING
INTELIGEN NT
ALL CONTROL WIRING IS 16AWG UNLESS OTHERWISE NOTED.
DASHED LINES INDICATE CUSTOMER CONNECTIONS.
35319 C

Section 6 - Wiring Diagrams

ROTATING RECTIFIER
GENERATOR
EXCITER ROTOR
MAIN ROTOR
EXCITER STATOR
MAIN STATOR
63
62
3
TB2
A1
K2
K1 P2
P3
P4
XX
X
3
2
2
1
A2
MX341(UL)
VOLTAGE
S1
REGULATOR
S2
210
211
TB1
L1
L1
L1
L1
L2
L2
L2
L2
L3
L3
L3
L3
N
N
N
N
C1
C1
C1
L1K
C1-O
C1-O
C1-O
L1I
C2
C2
C2
L2K
C2-O
C2-O
C2-O
L2I
C3
C3
C3
L3K
C3-O
C3-O
C3-O
L3I
L1M
1LM
L1M
L1
L2M
L2M
L2M
L2
L3M
L3M
L3M
L3
NM
NM
NM
N
IN CONTROL PANEL
GND
MGG155/210 Operating Manual
W1
W2
W5
LINK BOARD CONNECTIONS
SERIES STAR 3PH 4W
VOLTAGE: 480/277
W6
OUTPUT TERMINALS
U, V, W, N
V1
N
V2
V5
W
W2
V6
W5
V
V2
7
U1
V5
U
U2
8
U2
L1A
U5
U5
U6
7
8
SEE LINK BOARD CONNECTION
L1 L2 L3 N
L1A
10 AWG
L1A
1K OHM
1
VOLTAGE
2
ADJUSTING
RHEOSTAT
N
10 AWG
N
12 AWG
G
L1
L1
L3
L3
N
L1
L1
H1
H3
L2
150 VA
TRANSFORMER
L3
X2
X1
N
301
CT1
300
300
CBCR
300
302
9
5
CT2
CBOR
300
303
9
5
CT3
MAINLINE
CIRCUIT BREAKER
L1
L2
L3
L1M
L2M
L3M
NM
*BREAKER REQUIRES A
MINIMUM OF 3/O AWG
NEUTRAL/GROUND
BOND
L1
L2
L3
N
BUS BAR
3 PHASE 4 WIRE
W6
N
V6
U6
L3
W1
L2
V1
L1
U1
TO CUSTOMER CONVENIENCE
RECEPTACLES
TO DC WIRING
TB2
301
301
CIRCUIT BREAKER
300
MOTOR OPERATOR
301
B4
A1
302
A2-CLOSE
303
A4-OPEN
90527_A_08.25.14
53

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