861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11
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Operation
36.5
Charging the closing spring manually
The closing spring is charged by the motor after applying control voltage. The energy required
for the operating sequence OPEN-CLOSED-OPEN (auto-reclosing) is stored in the closing
spring about 15 seconds after closing the circuit-breaker.
The hand crank is required to charge the closing spring manually if the control voltage fails.
➭ Remove cover from cutout.
➭ Insert hand crank.
➭ Turn hand crank clockwise approx. 48 turns until the indication "closing spring charged"
appears.
➭ Remove hand crank.
➭ Close cutout with cover.
Fig. 192: "Closing spring charged"
indication
Fig. 193: "Closing spring not charged"
indication
CAUTION
High speed moving parts
Using an incorrect hand crank can cause injury.
➭ Use exclusively the hand crank provided with the switchgear accessories.
The hand crank supplied features a freewheel function. The freewheel function
disconnects an inserted hand crank from the charging system when the motor charges the
closing spring.
