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STATIONARY EMERGENCY
GENERATOR CONTROL AND
OPERATION
Refer to the appropriate control panel operator's manual for this
unit.
OPERATING UNIT WITH MANUAL
TRANSFER SWITCH
If the Stationary Emergency Generator was installed in conjunction
with a transfer switch capable of manual operation only, the fol-
lowing procedure applies. A manually operated transfer switch is
one that will not provide automatic start-up and does not include
an intelligence circuit.
ENGINE START-UP AND TRANSFER
For additional information, refer to the applicable control panel
manual for this unit, as well as any literature pertaining to the
specific transfer switch.
The Maintenance Disconnect Switch and the
AUTO/OFF/MANUAL switches (if so equipped)
must be set properly, or the generator will
crank and start as soon as the utility power to
the transfer switch is turned off. Refer to appli-
cable control panel and transfer switch manuals
for more information.
Do not proceed until certain that utility source
voltage is available to the transfer switch and
the transfer switch main contacts are set to
UTILITY.
Do not attempt manual operation until all
power supplies to the transfer switch have been
positively turned off, or extremely dangerous -
possibly lethal - electrical shock will result.
Transfer switch enclosure doors should be kept
closed and locked. Only authorized personnel
should be allowed access to the transfer switch
interior. Extremely high and dangerous voltages
are present in the transfer switch.
In order to transfer load from the utility source to the generator,
follow these directions:
•
Turn OFF or disconnect the utility power circuit to the transfer
switch, using the means provided (such as the utility source
main line circuit breaker).
•
Set the transfer handle to its UTILITY (NORMAL) position with
load circuits connected to the utility power supply.
•
Set the generator's main line circuit breaker to its OFF (or OPEN)
position.
•
Start the generator.
Operation
Do not crank the engine continuously for lon-
ger than 30 seconds, or the heat may
damage the starter motor.
•
Let engine stabilize and warm up.
•
Check all applicable instrument and gauge readings. When
certain that all readings are correct, move the transfer switch
manual handle to the STANDBY (or EMERGENCY STANDBY)
position, i.e., load circuits supplied by the generator.
•
Set the generator's main line circuit breaker to its ON (or
CLOSED) position.
•
Load circuits are now powered by the generator.
RETRANSFER AND SHUTDOWN
For additional information, refer to the applicable control panel
manual for this unit, as well as any literature pertaining to the
specific transfer switch.
To transfer the load back to the utility power source and shut down
the generator, follow these directions:
•
Set the generator's main line circuit breaker to its OFF (or OPEN)
position.
•
Manually move the transfer switch handle to its UTILITY
(NORMAL) position, i.e., load circuits connected to the utility.
•
Turn ON the utility power supply to the transfer switch, using
the means provided (such as the utility power source main line
circuit breaker).
•
Let the generator run at no-load for a few minutes to stabilize
internal temperatures.
•
Shut down the generator.
OPERATING UNIT WITH AUTOMATIC
TRANSFER SWITCH
If the Stationary Emergency Generator has been installed with an
automatic transfer switch, the engine may be started and stopped
automatically or manually.
Refer to the applicable manual for your transfer switch and to
"Transfer Switch Start Signal Connections". In addition, please
note the dangers under "Engine Start-up and Transfer."
9-1
NOTE:
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