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Page Title:
Table 2-1. Description of Operator's Controls and Indicators - CONT |
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 TM 55-1915-200-10
Table 2-1. Description of Operator's Controls and Indicators - CONT
Key
Control or Indicator
Function
Emergency Switchboard (FIGURE 2-21) - continued
14
EMG GENERATOR
Acts as an automatic circuit breaker
CIRCUIT BREAKER
that on main power failure will open
3P 460V 150AT
bus from main switchboard, start
emergency generator, and close
emergency bus when voltage is at
correct level.
15
MAIN SWBD
Ties Main Switchboard bus to emergency
BUS TIE CKT BKR
generator bus for normal operation.
3P 460V 150AT
Failure of main switchboard bus will
open circuit breaker. Emergency
generator will only operate mandatory
emergency circuit.
16
FIRE PUMP
Provides 3 phase 460 volts with 110
3P 460V 11OAT
ampere automatic trip circuit breaker.
17
EMG LOAD CNTR PNL
Provides 3 phase 460 volts with 70
XFMR FEEDER
ampere automatic trip circuit
3P 460V 70AT
protection.
18
3P 460V 20AT
Spare circuit breaker if a circuit is
required with 20 ampere circuit
protection.
19
EMG GENERATOR
Provides 3 phase 460 volts with 15
AIR SUPPLY FAN
ampere automatic trip circuit
3P 460V 15AT
protection.
20
AIR COMPRESSOR
Provides 3 phase 460 volts with 25
NO. 2
ampere automatic trip circuit
3P 460V 25AT
protection.
21
EMG GEN RM STEER
Provides 3 phase 460 volts with 15
GEAR COMP FAN
ampere automatic trip circuit
3P 460V 15AT
protection.
22
STEERING GEAR
Provides 3 phase 460 volts with 250
PUMP NO. 2
ampere automatic trip circuit
3P 460V 250AT
protection.
2-101
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