Ensure that watch standers keep their spaces clean
and orderly. Impress on them the importance of
keeping tools and auxiliary equipment in their proper
places when not in use. Store clean waste and oily
waste in separate containers. OILY WASTE
CONTAINERS ARE REQUIRED TO BE KEPT
COVERED. Care given to the station floor will be
governed by its composition. Generally, it should be
swept down each watch. Any oil or grease that is
tracked around the floor should be removed at once.
Setting up a power generator is only one phase of
your job. After the plant is set up and ready to go, you
will be expected to supervise the activities of the
operating personnel of the generating station. In this
respect, your supervision should be directed toward
one ultimate goal-to maintain a continuous and
adequate flow of electrical power to meet the demand.
That can be accomplished if you have a thorough
knowledge of how to operate and maintain the
equipment and a complete understanding of the
stations electrical systems as a whole. Obviously, a
thorough knowledge of how to operate and maintain
the specific equipment found in the generating station
to which you are assigned cannot be covered here;
however, general information will be given. It will be
up to you to supplement this information with the
specific instructions given in the manufacturerss
instruction manuals furnished with each piece of
Similarly, familiarity with the stations electrical
system as a whole can be gained only by a study of
information relating specifically to that installation.
This information can be found to some extent in the
manufacturers instruction manuals. You can obtain
the greater part of it from the stations electrical plans
and wiring diagrams. Remember, however, to sup-
plement your study of the electrical plans and diagrams
with an actual study of the generating stations system.
In that way, the generators, switchgear, cables, and
other electrical equipment are not merely symbols on a
plan but physical objects whose location is definitely
known and whose functions and relation to the rest of
the system are thoroughly understood.
Single Plant Operation
Connecting an electric plant to a de-energized bus
involves two general phases: (1) starting the diesel
engine and bringing it up to rated speed under control
of the governor and (2) operating the switchboard
controls to bring the power of the generator onto the
Different manufacturers of generating plants
require the operator to perform a multitude of steps
before starting the prime mover; for example, if a
diesel engine is started by compressed air, the operator
would have to align the compressed air system. This
alignment would not be necessary if the engine is of the
electric-start type. It is important that you, as the plant
supervisor, establish a prestart checklist for each
generating plant. The prestart checklist provides a
methodical procedure for confirming the operational
configuration of the generating plant; following this
procedure assures that all systems and controls are
properly aligned for operation.
The checklist should include, but is not limited to,
Align ventilation louvers.
Check lube oil, fuel oil, and cooling water
Ensure battery bank is fully charged.
Align electrical breakers and switches for
proper operation of auxiliary equipment.
Check control panel and engine controls.
Select the proper operating position for the
following controls for single plant operation.
Voltage regulator switch to UNIT or SINGLE
Governor switch to ISOCHRONOUS or
NOTE: Adjust hydraulic governor droop position
Voltage regulator control switch to AUTO
The prestart checklist should be completed in
sequence before you attempt to start the generating
Start the generating plant and adjust the engine
rpm to synchronous speed. Adjust the voltage
regulator to obtain the correct operating voltage. Set
the synchronizing switch to the ON position and close
the main circuit breaker. Adjust the frequency to 60
hertz with the governor control switch. Perform hourly
operational checks to detect abnormal conditions and
to ensure the generating set is operating at the correct
voltage and frequency.