Kohler 33-125EFOZCJ, Руководство по установке

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TP-6862 6/14 75 Section 9 Paralleling Generator Sets
9.7 Generator Management Setup
Generator Management starts and stops generators
based on the requirements of the load. The order in
which the generators are started or stopped is
determined according to one of the following:
D
Manual/Fixed —The starting order of the generators
is determined at the time of configuration (It is
adjustable at a later time through the menu on the
controller display). The controllers automatically
negotiate to ensure that no two units have the same
order number -- setting the order number on one
controller which conflicts with the order of another
controller will cause the two controllers to exchange
order numbers.
D
Run Time —The starting order of the generators is
determined based on the run time hours on the
generators. The generator with the most run time
hours will stop first and start last. Generators which are
already running are allowed to continue to run until
their run time hours exceed stopped the run time hours
of a stopped generator by an adjustable threshold.
D
Fuel Level —The starting order of the generators is
determined based on the fuel level remaining in the
supply tanks for the generators. This option is only
valid if the generators have indication of fuel.
Typical Applications for Manual Order Selection
Mode:
D
Units of various sizes are operated in a prime power
application and the generator management settings
are optimized for minimal fuel consumption.
D
An older unit is intended to accumulate most of the
run time hours because it is scheduled for
replacement soon.
D
Some units are quieter or located more remotely than
other units, making them more desirable to operate.
D
A unit is in need of maintenance but is still
operational—this unit can be used if necessary, but
should not operate more than is necessary.
Typical Applications for Run Time Order Selection
Mode:
D
Normal Standby Power systems without special
requirements.
D
Multiple generator system where all generators are of
identical size and age, where the generator run time
should remain essentially identical.
D
Prime power applications where the generators are
all of similar size.
Typical Applications for Fuel Level Order
Selection Mode:
D
Prime power applications where the generators have
individual fuel tanks and have level indication on the
fuel tanks.
D
Standby applications where the generators have
individual fuel tanks and have level indication on the
fuel tanks.
9.7.1 Manual Order Selection Setup:
The Generator Management order should be configured
so that the generator which is preferred to run has the
lowest order. If the controllers are communicating over
PGEN, changing the order on one generator will cause
the order of the other generators to rearrange to
accommodate the changed order of the one generator.
The Manual Start order can be changed through the
menu on the controller display at any time after the
commissioning of the site is complete.
9.7.2 Run Time Order Selection Setup
When Run Time Order Selection Mode is selected,
Generator Management will automatically adjust the
order of the connected generators based on their run
time hours. The order of each should reflect the relative
run time of that generator if all the generators are
running or all the generators are stopped. The generator
with the lowest run time will be started first.
Because a generator will not be accumulating run time
when it is stopped, it is necessary to add a stability
threshold to each generator which is not running or the
generators will start 12 minutes after they stop
(0.2 hours). This threshold is called the Generator
Management Run Time Threshold.
Configure the threshold to allow the generators to
equalize run time without starting and stopping each
generator unnecessarily. The factory default is 12.0
hours—one of the running generators will have to have
12.0 fewer hours than the generator that is stopped
before the generator will start. Once that generator is
online, the generator with the most run time hours will
stop.
9.7.3 Fuel Level Selection Setup
When Run Time Order Selection Mode is selected,
Generator Management will automatically adjust the
order of the connected generators based on their fuel
level. The order of each should reflect the relative fuel
level of that generator if all the generators are running or