3 Description
)
Note
The operator is responsible for the fuse protection for the auxiliary circuits, unless otherwise agreed with the
manufacturer.
3.8.1
Spring Winding Mechanism
The spring winding mechanism consists of the motor and the charging gear. The spring state indicators (symbols)
are on the spring cups and will be shown by intelligible symbols. See chapter 3.6
Spring Drive Mechanism of the
Circuit-Breaker.
a)
Spring is charged
b)
Spring is not charged
18.1 Motor
18.11 Opening
spring
18.16 Release
CLOSE
18.20
Motor limit switch
18.4 Closing
spring
18.8 Release
OPEN
Fig. 18
Spring drive mechanism
3.8.2 Gas
Monitoring
Each pole column is a closed gas compartment (Fig. 19) and is gas-monitored individually. The gas compartment
of a pole column to be monitored contains a non-return valve, a density monitor B4 and pressure gauge, the filling
connection W1, the test connection W2 and piping for connecting the components.
33
