Transfer switch in utility, Operational analysis part 3, Figure 10. transfer switch in utility – Generac Power Systems 8 kW LP User Manual
Page 71: Page 69
tranSFer SWitch in utility
When the transfer switch returns to the utility side, generator shutdown occurs after approximately one (1) minute.
Page 69
TRANSFER SWITCH
sEctioN 3.2
oPEratioNal aNalYsis
Part 3
NEUTRAL
CONNECTION
SWITCH
SW3
NO
C1
COM
SW2
VR1
NC
NC
COM
C2
VR2
NO
TR1
15B
23
1
7
4
7 9
3
6
9
F2
CIRCUIT 10
BLACK (MAIN 1)
CONTROL
TRANSFER
RED (MAIN 2)
NEUTRAL (WHITE)
NEUTRAL (WHITE)
23
0
F1
N2
N1
15B
23
BLACK
RED
N2
N1
15B
240VAC TO
TO GENERATOR
OUTPUT
PANEL
MAIN DISTRIBUTION
T1
T2
T1
T2
E2
E2
E2
E2
E1
E1
N1A
N1A
N2A
N2A
B
B
B
B
B
E1
E1
E1
N1A
N1A
N1A
15B
23
E1
E2
205
205
126
126
E2
N1A
N2A
N2A
A
N2A
240VAC
OUTPUT
GENERATOR
TS TO
CONTROL PANEL
A
B
SW1
LC
CIRCUIT 9
CIRCUIT 6
CIRCUIT 5
CIRCUIT 2
CIRCUIT 1
CIRCUIT 3
CIRCUIT 4
CIRCUIT 7
CIRCUIT 8
CIRCUIT 11
CIRCUIT 12
CIRCUIT 13
CIRCUIT 14
CIRCUIT 16
CIRCUIT 15
14 CIRCUIT LO
AD CENTER
12 CIRCUIT LO
AD CENTER
10 CIRCUIT LO
AD CENTER
8 CIRCUIT LO
AD CENTER
T1
T1
F3
0
WIRE
-
WIRE
BLK
+
RED
BC
0
16 CIRCUIT LO
AD CENTER
BC-BATTERY CHARGER
N-NEUTRAL
TR1-TRANSFER RELAY
SW2,SW3-LIMIT SWITCHES
TB1-TERMINAL STRIP
F1,F2,F3-5A, 600V FUSE
C1-UTILITY COIL & RECTIFIER
C2-GENERATOR COIL & RECTIFIER
SW1-AUTOMATIC TRANSFER SWITCH
(16 CIRCUIT SHOWN FOR REFERENCE ONLY)
LC-CIRCUIT BREAKER (LOADS)
LEGEND
SENSING
UTILITY
INSIDE
GROUND (GREEN)
GROUND (GREEN)
UTILITY
GENERATOR
GROUND
DC
Figure 10. Transfer Switch in UTILITy.