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Siemens GMSG-GCB Instruction Manual page 20

5 kv to 15 kv vacuum circuit breakers

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Figure 15: Stored-energy operating mechanism
62.0
55.0
58.0
63.7
59.0
50.1
Manual-spring charging port
50.2
Charging mechanism gear box
50.3
Charging flange
50.3.1
Driver
Spring-charging motor
50.4
(behind limit switches)
50.4.1
Limit switches
53.0
Close button
53.1
Close coil
54.0
Open button
54.1
Trip coil
54.2
Undervoltage (or secondary) release
20
55.2
50.3
50.2
62.2
50.1
55.1
50.4.1
50.4
61.8
60.0
55.0
55.1
55.2
58.0
59.0
60.0
61.8
62.0
62.2
62.3
62.5
62.5.2
50.3.1
62.3
62.5
62.5.2
53.0
62.6
53.1
54.1
54.0
62.8
64.0
64.2
64.3
63.5
Spring-charge CHARGED/DISCHARGED indicator
Linkage
Control lever
CLOSED/OPEN indicator
Operation counter
Operator housing
Shock absorber
Closing spring
Crank
Cam disc
Lever
Close-latch pawl
68.0
54.2
68.1
63.0
63.1
64.3.1
62.6
62.8
63.0
63.1
63.5
63.7
64.0
64.2
64.3
64.3.1
68.0
68.1
Drive lever
Coupling rod
Jack shaft
Phase C lever
Phase B lever
Phase A lever
Opening spring
Pawl
Lever
Pawl roller
Auxiliary switch
Linkage

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