Siemens vacuum circuit breaker 38-3AH3 38 kV - Manual (Page 24)

Vacuum interrupter/
operator
Figure 17: Operating mechanism section diagram (drawout trip-free linkage shown) mechanism OPEN, closing spring DISCHARGED
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.
62.5.1
62.1
62.3
62.2
62.5.2
50.3
50.3.1
53.0
62.6
62.2.2 53.1
64.2.2
62.8.1
54.0
62.8*
63.5*
63.0*
64.2*
64.5
63.5*
48.0*
62.8.7
62.8.6
62.8.8
63.7
63.5
63.1
62.8.5
64.3.1*
62.8.3
64.2.1
64.0*
64.5*
62.8.2
62.5
24