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17
ENGLISH
Control supply
Fig. 17-1
Power supply
A1
A2
Air circuit breaker
Min. 80ms
CC Unit
CC
One pulse
circuit
Note: 24 to 48 V DC does not have rectifier circuit.
SHT circuit diagram
Fig. 17-2
Note: 24 to 48 V DC does not have rectifier
circuit.
Power supply
Air circuit breaker
Cut-off
switch
SHT unit
SHT
C1
C2
Min. 40ms
UVT circuit diagram (for 380-460 V AC)
Fig. 17-4
UVT circuit diagram (for 100-120 V AC, 200-240 V AC or
DC voltage)
Fig. 17-3
Note: Use a pushbutton for tripping having power ratings of
150 V DC and 0.5 A or more.
D1
D2
UVT
controller
UVT
coil
Push button
for tripping
Min 0.2s
Max. 2m
Air circuit breaker
DT1
DT2
D1
D2
IN1
IN2
OUT3
OUT4
UVT
controller
UVT
coil
External
unit
Air circuit breaker
Note: Use a pushbutton for tripping having power ratings of
150 V DC and 0.5 A or more.
The external transformer dedicated for AE-SW is used.
Only one UVT controller can be connected to one
external unit.
Max. 2m
DT1
DT2
Push button
for tripping
Min 0.2s
Electrical operation
< Closing >
Remote closing can be made by emerging the closing coil (CC).
Apply the rated voltage to the control terminals A1 , A2 , and
the breaker closes.
The unit comprises an unti-pumping circuit which allows only
one action without first de-energizing then re-energizing.
To re-close the breaker, once turn off power (between A1 and
A2 ) to the closing coil, and re-apply the rated voltage to them.
When the breaker has an under-voltage trip device (UVT), the
breaker cannot be closed if power is not applied. (After power is
applied to the UVT, it takes a waiting time of 1.5 sec until the
breaker can be closed.)
< Opening >
The use of a shunt trip device (SHT) or an under-voltage trip
device (UVT) enables to electrically trip the breaker.
When an SHT is used, apply the rated voltage to C1 and C2 on
the control circuit terminal block.
When a UVT is used, open the trip terminals DT1 and DT2 on
the control circuit terminal block. (A short-circuiting bar has been
fitted before shipment. Remove the bar before using the termi-
nals.)
Or turn off an applied voltage to D1 and D2 .
Содержание AE-SW Series
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