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Siemens 38-3AH3 38 kV Instruction Manual page 24

Vacuum circuit breaker
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Figure 17: Operating mechanism section diagram (drawout trip-free linkage shown) mechanism OPEN, closing spring DISCHARGED
62.5
62.1
62.3
62.2
62.5.2
64.5*
53.1
64.0*
64.2.1
62.8.3
64.2*
63.5*
64.3.1*
62.8.5
64.5
63.5*
48.0*
24
Vacuum interrupter/
operator
62.5.1
50.3
50.3.1
53.0
62.6
62.2.2
64.2.2
62.8.1
54.0
62.8.2
62.8*
63.0*
63.7
62.8.7
63.5
62.8.6
63.1
62.8.8
48.0 - Insulating coupler
50.3 - Charging flange
50.3.1 - Driver
53.0 - Close pushbutton
53.1 - Close coil 52SRC
54.0 - Open pushbutton
54.1 - Trip coil 52T
62.1 - Charging shaft
62.2 - Crank
62.2.2 - Closing-spring mounting
62.3 - Cam disc
62.5 - Lever
62.5.1 - Pawl roller
62.5.2 - Close latch-pawl
62.6 - Drive lever
62.8 - Trip-free coupling rod
62.8.1 - Spring-return latch
62.8.2 - Trip-free coupling link (draw bar)
62.8.3 - Trip-free coupling lever
62.8.5 - Push rod and cam assembly
62.8.6 - Interlock lever push rod
62.8.7 - Interlock lever actuator
62.8.8 - Trip-free actuator
63.0 - Jack shaft
63.1 - Lever - phase C
63.5 - Lever - phase B
63.7 - Lever - phase A
64.0 - Opening spring
64.2 - Trip-latch pawl
64.2.1 - Trip-latch pin
64.2.2 - Latching pawl-release lever
64.3 - Lever
64.3.1 - Jack-shaft pawl
64.5 - Opening-spring shaft
*
Items moved from position shown in Figure
19: Operating mechanism section diagram
(drawout trip-free linkage shown)
mechanism CLOSED, closing spring
DISCHARGED on page 26 on trip operation.
Underlined items moved from position
shown in Figure 18: Operating mechanism
section diagram (drawout trip-free linkage
shown) mechanism OPEN, closing spring
DISCHARGED on page 25 on closed spring
discharge operation.

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