Bryant ASPAS1BBA015 Manual do Utilizador Página 85

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SECTION 4.2
OPERATIONAL ANALYSIS
DC CONTROL
PART 4
Page 85
XB1, Wire B, and a bridge rectifier. The standby
closing coil energizes and the main current carrying
contacts of the transfer switch are actuated to their
'Standby" source side.
As the main contacts move to their "Standby"
source side, a mechanical interlock actuates limit
switch XB1 to its open position and limit switch XA1
to its "Utility" side position. When XB1 opens,
standby closing coil C2 3 de-energizes.
"Standby" power is delivered to the "Load"
terminals (T1/T2) of the transfer switch.
F1
SM
C
1-
1
1
5
0
0
1
8
C
1-
5
56
1
8
17
1
5
17
1
5A
SCR
0
0
0
1
5
1
6
2
39
1
5
14
0
1
94
2
3
1
3
1
8
D
IM2
IM1
S
P
2
S
P
1
2
3
1
6
0
1
3
SC
0
S
W
1
1
5
1
5A
2
39
1
94
F
S
0
14
C
2-
1
WINDIN
G
(
STATOR
)
P
O
WE
R
22
44
11
CB1
33
56
V
A
1VA
1
3
22
5
22
5A
224A
224
TX
17
N1
N2
11
22
C
2-
5
N2
N1
C
2-
6
11
1
94
2
3
1
94
2
3
N1
N2
CUS
T
O
ME
R
SU
PPLIE
D
BATTERY
12
V
BLA
CK
RED
SC
24
0V
12
0V
12
0V
CUS
T
O
ME
R
CO
NNE
C
TI
O
N
S
CO
I
L
12V
dc
U
TILITY
INP
UT
24
0
VA
C
RELAY
T
RAN
S
FE
R
TR
12VD
C
A
CC
E
SSO
RY
SOC
KE
T
+
-
14
0
0
1
5
17
22
N
11
2
3
1
94
22
D
G
F
CI
OU
TLE
T
EXTERNAL
G
G
G
L
N
L
11
G
G
N
N
C
B
3
N
0
0
1
5
1
5
1
5
1
3
1
5
1
5B
1
5B
F2
0
0
2
39
Figure 5. Circuit Condition - Initial Transfer to
Standby
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