positions, the indicated signal will be sent to the
enabled when the MANUAL START/
breaker. The two inner positions of the switch set
AUTO START switch is in the MANUAL
up a circuit through auxiliary contacts on the
START position.
breaker. The CB POSN DIFF FROM SWBD
indicator will illuminate if the switch is in any
GENERATOR RUNNING AND UP TO
position different than the actual breaker
VOLTAGE indicates the generator is up
position. To operate a generator CB or BTB, turn
to speed and up to voltage.
the switch to the desired extreme outermost
position, TRIP or CLOSE. Then release the
PRIMER MOVER FAILS TO START
switch handle, which returns to the adjacent
indicates the SSDG failed to start in the
innermost position. If the CB POSN DIFF FROM
required time period.
SWBD indicator is illuminated, the switch must
be turned to the other innermost position. This
PRIME MOVER 1 STOP is a push
will make the switch agree with the CB.
button used to stop the SSDG.
The Nos. 1, 2, and 3 SWBDs have an indicator
for local and remote control. When the LOCAL
G E N SET UP FOR AUTO OPER
CONTROL indicator is illuminated, control of
indicates all the systems and the SWBD are
the SWBD is at the SWBD. When the REMOTE
set up for operation of the SSDG in either
CONTROL indicator is illuminated, control of
the manual or auto mode.
the SWBD is at the EPCC.
STARTING AIR LOW PRESS indicates
the starting air pressure to the SSDG is
below the preset limit.
EMER STOP is a guarded push-button
switch. Depressing this switch causes fuel
and combustion air to be shut off, thus
stopping the SSDG.
Circuit Breaker Control and
Switchboard Control Sections
Control switches are provided for each
generator, BT, and load shedding CB. The
control switches for the generator CBs and BTBs
The LOAD SHEDDING CB control switch
are four-position rotary switches. They are
is a three-position switch, spring loaded to the
spring returned from the outermost position
center position. The left position is labeled TRIP
on each side to the adjacent innermost position.
and the right position is labeled CLOSE. A blue
The two outermost positions are labeled TRIP
LOAD SHEDDING CB CLOSED indicator light
and CLOSE. When the switch is placed in these
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