Description
24
9229 0025 176 0E
2021-11-15
Anti-pumping device (-K1)
Closing solenoid (-Y9)
1) Working area for generator circuit breaker as per IEC/ IEEE 62271-37-013
If simultaneous electrical CLOSE and OPEN commands
are continuously applied to the vacuum circuit-breaker, it
returns to the open position after being closed.
The function of the anti-pumping device (-K1) means
that the vacuum circuit-breaker remains there until the
ON command is re-entered.
This prevents continuous closing and opening (pump-
ing).
Fig. 22
Auxiliary contactor (34)
The closing solenoid (-Y9) unlatches the charged closing
spring and switches the vacuum circuit-breaker on elec-
trically. It is available for DC or AC voltage.
The closing solenoid (-Y9) is not designed for continuous
operation and is terminated within the circuit-breaker via
the auxiliary switch (-S1) at the factory.
The operator’s supply voltage is permitted to deviate
1)
from the rated supply voltage of the vacuum circuit-
breaker by -15 % to +10 %.
The closing solenoid (-Y9) DC
60 V is protected
against overvoltage by a varistor.
Power consumption
300 W to 370 W / VA (3AY1410-..)
Fig. 23
Closing solenoid (52)
Rated supply voltage U*
)
DC
AC
V
48
110-125
220-250
120
240
Closing
V
36-56
90-140
180-280
104-127
208-254
