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Vacuum Interrupter/Operator - Siemens 38-3AH3 38 kV Instruction Manual

Vacuum circuit breaker
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Figure 8: Front view of type 38-3AH3 vacuum circuit breaker with front panel removed
Closing spring
Spring-charging
motor behind
limit switches
CHARGED/
DISCHARGED
indicator
OPEN/CLOSED
indicator
Operations
counter
Capacitor trip
(optional)
14
Vacuum interrupter/
operator
Gearbox
Jack shaft
Closed circuit-
breaker interlock
Opening spring
Secondary disconnect
Trip-free interlock
Ground disconnect
Push-to-close
Auxiliary
switch
Close coil
Trip coil
Push-to-trip
Mechanism-
operated cell
(MOC) switch
operator

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