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 TM 55-1905-223-10
Table 2-1. Description of Operator's Controls and Indicators - CONT
Key
Control or Indicator
Function
Main Switchboard (FIGURE 2-28) - Continued
76
OPEN
CLOSED
Indicates circuit breaker open (green).
Indicates circuit breaker closed (red).
77
Panel nameplate.
CIRCUIT BREAKER
78
CIRCUIT BREAKER
Charges spring for circuit breaker contacts.
LOADING ARM
79
CLOSE
Pushbutton to release breaker closing spring.
80
RACKING
Door slides to allow breaker cranking end to
SCREW
engage racking screw.
81
TRIP
Pushbutton to open circuit breaker.
82
DISCHARGE
Indicates circuit breaker spring is charged or
discharged.
83
OPEN
CLOSED
Indicates circuit breaker open (green).
Indicates circuit breaker closed (red).
84
Panel nameplate.
CIRCUIT BREAKER
85
CIRCUIT BREAKER
Charges spring for circuit breaker contacts.
LOADING ARM
86
CLOSE
Pushbutton to release breaker closing spring.
87
RACKING
Door slides to allow breaker cranking end to
SCREW
engage racking screw.
88
TRIP
Pushbutton to open circuit breaker.
89
DISCHARGE
Indicates circuit breaker spring is charged or
discharged.
90
QTRS HEATER
Protects Power Panel P101 with automatic trip
PANEL
circuit breaker and under-voltage trip
P101
125ATUVT
protection.
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