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EQUIPMENT DATA. - TM-55-1915-200-100075
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TM-55-1915-200-10 Logistics Support Vessel (LSV) NSN
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FIGURE 1-20. Power Generation System.
TM 55-1915-200-10
Section III. TECHNICAL PRINCIPLES OF OPERATION
electrical power is provided by an emergency generator
1-10. GENERAL. The following paragraphs provide the
and is distributed through the emergency switchboard to
technical principles of operation of the LSV systems.
allow continued operation of essential systems and
equipment during loss of primary power. In port, the
1-10.1.
Power Generation System.
The power
LSV receives shore power through a cable connected to
generation system provides primary and emergency
the shore terminal box.
electrical power (FIGURE 1-20).  Primary power is
provided by two diesel engine driven ship's service
1-10.1.1. Ship's Service Diesel Generator Engine. Two
generators and is routed to the main and emergency
switchboards  for  distribution  to  various  locations
generator set engines power individual ship's service
(FIGURE 121). The engine room lighting panel L1 (1),
generators, which provide primary electrical power
main engine circulating pump panel (6), main engine
throughout the LSV. One diesel generator is air started;
sump heater panel (14), and the engine room space
the other is electrically started.  Engine control is
heater panel (17) are located in the engine room. The
provided from the engine room console.
motor control center (20) is located in the engine control
room.  The port main deck lighting panel L-2 (2) is
1-10.1.2. Ship's Service Generator.
located in the port passageway of the main deck. The
starboard main deck lighting panel L-3 (3) is located in
Two 250 kW generators provide 440 volts, 3 phase, 60
the starboard passageway of the main deck. The upper
hertz ship's service power. Each generator is capable of
machinery room power panel P-2 (18) is located in the
providing 110 percent of the necessary sea load for the
upper machinery room. The emergency generator room
propulsion and safety of the ship and preservation of
power panel P-3 (16) and the load center panel (7) are
cargo under normal operation. The generators may be
located in the emergency generator room. The forward
operated in parallel; however, normal operation has one
power panel P-1 (19) and forward lighting panel L-6 (21)
generator on line and the other in reserve.
are located in the port hydraulic machinery room of the
mezzanine deck. The poop deck power panel P-5 (15)
1-10.1.3.  Main Switchboard.  The main switchboard
is located in the center passageway of the poop deck.
provides generator selection, and power distribution for
The officers deck lighting panel L-4 (4) is located in the
both primary and secondary power.  Primary power
center passageway of the officers deck.  The galley
consists of 440 Vac supplied by the ship's service
power distribution panels 7A and 7B (13) are located in
generator or from shore facility sources.  Secondary
the galley. The pilothouse lighting panel L-5 (5) and the
power is 120 Vac, 60 hertz, supplied from the main
pilothouse emergency panel EP-2 (8) are located on the
switchboard through stepdown transformers.
inboard port bulkhead of the pilothouse. The radio room
panel EP-1 (11), filter panel EP-1 (12), and the
1-10.1.4.  Emergency Switchboard.  The emergency
electronic emergency panel (10) are located in the radio
switchboard normally receives primary power from the
room. The navigation lights panel (9) is located on the
main
port side of the pilothouse console.
Emergency
1-55

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