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Section 9 Paralleling Generator Sets
9.8 Load Add/Shed Configuration
The Load Add/Shed configuration (also known as load
control) is intended to remove non-critical loads from the
generator in the event of a condition where the
generator capacity is insufficient to support the load.
This allows the critical loads to receive power until the
load decreases or the capacity increases.
9.8.1
Load Add/Shed Setup
Generator Maximum Percent Capacity
This is the maximum load on the generator which the
Load Add/Shed will automatically allow. If the load
exceeds this level, no additional loads will be added until
the load decreases below this level. The time to add a
load increases as the load approaches this level.
Generator Overloaded Percent
This is the maximum load that the generator will support
before it begins to shed load. The time to shed a load
decreases as the load on the generator increases.
Load Priority Configuration
The Load Shed priorities are events which can be
assigned to programmable IO. Priorities 1 and 2 are
defaulted to RDO outputs 3 and 4. The priorities can be
configured to outputs on the 14 relay dry contact kit or
each controller on the network can be given consecutive
assignments to the existing IO.
For Example:
Generator #1—Load Shed Priority 1 and Load Shed Priority 2
Generator #2—Load Shed Priority 3 and Load Shed Priority 4
Generator #3—Load Shed Priority 5 and Load Shed Priority 6
Note:
The load control outputs behave similarly on
each of the generators. If an output is configured
for Load Shed Priority 1 on all generators, they
will all shed and add at the same time.
Note:
The advantage of setting a few load shed outputs
on each controller is that if one generator has the
battery removed for service, the load control
outputs on the other controllers are still able to
shed loads (allowing the system to shed
non-critical loads and continue supplying critical
loads with power). The priorities that are shed
may be more important than the priorities that are
controlled by the disconnected generator but at
least the critical loads will not lose power due to
an overload condition.
Summary of Contents for 33-125EFOZCJ
Page 2: ...TP 6862 6 14 2...
Page 8: ...TP 6862 6 14 8 Safety Precautions and Instructions Notes...
Page 10: ...TP 6862 6 14 10 Section 1 Introduction Notes...
Page 12: ...TP 6862 6 14 12 Section 2 Location and Mounting Notes...
Page 28: ...TP 6862 6 14 28 Section 5 Fuel System Notes...
Page 34: ...TP 6862 6 14 34 Section 6 Electrical System Notes...
Page 52: ...TP 6862 6 14 52 Section 7 Installation Drawings Notes...
Page 78: ...TP 6862 6 14 78 Section 9 Paralleling Generator Sets Notes...
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Page 83: ...TP 6862 6 14 83...
