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 TM 55-1925-273-10-1
0044 00
Table 11. Main Switchboard (refer to figure 11)
Key
Control/Indicator
Function
1
AC VOLTS Meter
This meter indicates BUS GEN 2 voltage.
2
VOLT OFF Switch
This switch selects phases for reading on the voltmeter.
3
AC AMPERES Meter
This meter indicates SSDG 2 amperage.
4
AMMETER OFF Switch
This switch selects phases for reading on ammeter.
5
HERTZ Meter
This meter indicates SSDG 2 frequency.
6
GENERATOR 2 GOVERNOR
This switch controls engine speed for SSDG 2.
RAISE LOWER Switch
7
AC KILOWATTS Meter
This meter indicates SSDG output in kilowatts.
8
SHORE POWER AVAILABLE
This indicator illuminates to indicate that shore power is supplying the
Indicator
switchboard.
9
GENERATOR 2 CKT BRK
This controls the circuit breaker for SSDG 2.
OPEN CLOSED
10
GENERATOR 2 CIRCUIT
This indicator illuminates to indicate that circuit breaker 2 is closed.
BREAKER CLOSED Indicator
11
GENERATOR 2 POWER
This indicator illuminates to indicate that SSDG 2 is generating power.
AVAILABLE
12
GENERATOR 2 AUTO VOLT
These are the voltage adjustments for SSDG 2.
RHEO
13
EMG GEN SWBD BUS TIE #2
This provides circuit protection for bus tie 2 to the emergency switchboard.
14
ENG RM SUPPLY FAN #2
This provides circuit protection for engine room supply fan 2.
15
GALLEY 440V PWR PNL
This provides circuit protection for galley power panel 2.
16
ENG RM EXH FAN #2
This provides circuit protection for engine room exhaust fan 2.
17
SHORE POWER FREQUENCY
This meter indicates shore power frequency.
HERTZ Meter
18
BUS TIE CKT BKR CLOSED
This indicator illuminates to indicate that the main switchboard bus tie to
Indicator
the emergency switchboard is closed.
19
Synchronizing Lights
The lights indicate when the generators are in parallel.
20
SYNCHROSCOPE
This indicates synchronization of generators.
21
SYNCHRONIZING GEN #2
This switch selects generator to be paralleled.
GEN #1 Switch
22
SHORE POWER AC VOLTS
This meter displays shore power voltage.
Meter
0044 00-21
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