CTB
+
A
GEN
B
C
FIELD
OUTPUT
F- F+
INPUT
POWER
3 4
ALARMCTB
CT1 CT2
VOLTAGE
SENSING
E3 E2 E1
DECS-100 WITH VOLTAGE MATCHING
52J 52K 52L 52M 6D 7 6U
VAR/PF
CONTROL CONTROL ADJUST
EXTERNAL
AL 1 AL 2
PARALLEL
52b
S2
S
1
CBA
PMG
D2881-11
05-10-02
5
10
AUX.
ADJUST
A B
VOLTAGE
MATCHING
VM VMC
S
3
10
9
54
3
10
2
1
10
10
7
10
8
6
Generator
Side
Utility
Side
NOTES:
10
52
10
7
10
B1 B3
BUS
GROUND
GND
3
4
5
6
7
8
1
2
9
10
11
Required only for optional Var/PF control. Var/PF is active with
52b open. Var/PF is inactive with 52b closed.
Parallel control and droop active with S2 open, inactive with S2
closed.
S1 (SPDT, spring-return to center-off position) adjusts DECS-100
setpoint.
Normally-open output contact closes for customer alarm or trip.
Analog input voltage between +/- 3 Vdc provides adjustment of
voltage setpoint.
External fus
es should be Bussman type KTK-10 or equivalent.
Sensing potential transformer is required if line voltage exceeds
660 Vac.
3-phase PMG is shown. For 1-phase PMG, omit B-phase
connection.
Optional voltage matching control input. Voltage matching is
active with S3 closed, inactive with S3 open.
Item not supplied by Basler Electric.
When generator rotation is ACB, the connections shown for CTB
s
hould be reversed.
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