TM 11-5895-846-14
the PHASE SEQUENCE indicators on the power
of the main trip coil for that breaker. The other side of
distribution panel.
the trip coil is connected to a contact on the MODE H
c. Power is distributed to the various subsystems
SELECT switch. When that contact is selected, the
MODE SELECT switch completes a circuit path to
through branch circuit breakers. Each power amplifier
neutral. When main power is on and a selected
and each rack in the RSS is supplied through a three-
equipment breaker is set to ON, phase C power
pole circuit breaker, as is each air conditioning unit.
immediately energizes the trip coil and trips the ' breaker
Each CSS rack and the TTY is supplied through a single-
to OFF.
pole circuit breaker. Shelter lights and utility receptacles,
CAUTION
dehydrator are also supplied through single-pole circuit
To avoid damage to the MODE
breakers.
SELECT switch, do not use it to turn
off operating equipment.
conditioners are the heaviest loads. All four operating
simultaneously would exceed the rate capacity of the on-
e. MONITOR meter M1 and MAIN 1/MAIN 2
line generator. To prevent generator overload, the
switch S1 provides for monitoring each phase of each
MODE SELECT switch selectively locks out one of the
feed between the main power circuit breakers and the
four loads. The phase C terminal on the load side-of the
branch circuit breakers.
equipment circuit breaker is connected to one side
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