Cooper Lighting S260-75-1 - Manual (Page 12)

Type S Automatic Load-Transfer Control Installation, Operation, and Maintenance Instructions
12
F
E
D
C
B
A
F
E
D
C
B
A
LOAD T
A
P
TYPE CI SWITCH
SOURCE I
SEE INSER
T
FOR
INTERNAL CONNECTIONS
NOTE: FOR SINGLE-PHASE SENSING JUMPER TERMINAL
A
T
O
B T
O
C
AND
TERMINAL
X T
O
Y
T
O
Z
ON TB2
INTERNAL
CONNECTION DIAGRAM:
C-INTERRUPTER # 1
SOURCE I
AND SOURCE II MUST
PRESENT
THE SAME PHASE
ROT
A
TION T
O
THE
LOAD.
SOURCE II
POTENTIAL SENSING TRANSFORMERS 500 V
A
MIN
120 V
AC, 60 HZ
SECONDARIES
INTERNAL
CONNECTION DIAGRAM:
C-INTERRUPTER # 2
POTENTIAL SENSING TRANSFORMERS 500 V
A
MIN
120 V
AC, 60 HZ
SECONDARIES
LS3 (NC)
8
7
6
5
4
3
2
1
9
10
F
E
D
C
B
A
TRIP COIL
R
M
CLOSE COIL
LS2 (NO)
LS2 (NC)
LS3 (NO)
LS1 (NC)
LS4 (NC)
LS4 (NO)
KEY
:
NC = NORMALL
Y
CLOSED NO = NORMALL
Y
OPEN M = MOT
OR
R = RESIST
O
R
TYPE CI SWITCH
M
L
K
J
H
G
M
L
K
J
H
G
SEE INSER
T
FOR INTERNAL CONNECTIONS
LS3 (NC)
8
7
6
5
4
3
2
1
9
10
TRIP COIL
R
M
CLOSE COIL
LS2 (NO)
LS2 (NC)
LS3 (NO)
LS1 (NC)
LS4 (NC)
LS4 (NO)
L
K
J
H
G
M
N A B C
N X Y Z
A
A
B C D
B C D
E
E
F G H
F G H
"PT"
"PT"
A
A
B C D E F
B C D E F
"SW"
G
G
H J K L M
H J K L M "SW"
Z
Y
X
G
2
G
1
C
B
A
TB2
POTENTIAL
SENSING
TRANSFORMERS
21
25
24
23
26
16
13
14
15
11
TB1
S CONTROL TRANSFER SWITCH OPERA
T
O
RS
G
1
G
2
TO TPG1
TO TPG1
TO TPG1
TO TPG2
TO TPG2
TO TPG2
Figure 8.
Connection diagram for Type S load-transfer control operating the Type PST-9 switch. (The transformer cutouts,
tap fuses, reclosers, and arresters are not shown.)