Gen Management Order. Determines the Start/Stop Order of this generator. Generators with a lower order will start before
generators with a higher order, higher order generators stop before lower order generators.
If the Generator Management Order for a generator changes, generator management will start any generators which were
involved in the order changing process (including automatic re-sort). After the incoming generators connect to the paralleling
bus, the generators with a high enough order to stop will start filling their accumulators to stop.
The generator order is adjustable in Manual/Fixed Order selection mode. It is only adjustable in Runtime or Fuel level mode if
the generators have identical runtime or fuel level.
Total Bus Capacity. The total bus capacity is simply the sum of the kW rating of all generators that are connected to the
paralleling bus (running with paralleling breaker/contactor closed). Generators in Baseload, System Control, or Unload mode
are not taking into consideration for this capacity.
Bus Total Power. The sum of the power output of all generators which are connected to the bus and available for sharing load.
Generators in Baseload, System Control, or Unload mode are not taking into consideration for this level. The Bus Total Power
is compared to the Start kW and Stop kW of the generator to determine if the generator should be started, stopped, or remain
as-is.
Start kW. The threshold of Bus Total Power above which the Start Accumulator for this generator will start filling.
Note:
The Accumulator fill rate is higher for larger differences between Bus Total Power and Start kW.
Stop kW. The threshold of Bus Total Power below which the Stop Accumulator for this generator will start filling.
Note:
The Accumulator fill rate is higher for larger differences between Stop kW and the Bus Total Power.
Preemptive Warnings. A preemptive warning tells the system that a generator may have a problem in the future. If Generator
Management has stopped the generators, it will start one of the unused generators but keep the running generator with the
preemptive fault online. The following conditions are considered preemptive warnings:
• Low Oil Pressure Warning
• Low Fuel Pressure Warning
• High Coolant Temperature Warning
• Failure to Synchronize Warning
• Water in Fuel Warning
• Fuel Tank Leak Warning
• Loss of Fuel Warning
A preemptive warning disables Generator Management on the unit which has the warning. It will run as long as the start signal
is present.
Note:
Most of the preemptive warnings have a shutdown which follows shortly after the warning. The intent of starting another generator
is that it will be able to supply the load when the generator shuts down on a fault.
Start Accumulator. The Start Accumulator fills from 0% to 100% while the Bus Total Load remains above the Start kW. This
generator will be signaled to start when this accumulator reaches 100%.
Note:
The Start Accumulator will reset to 0% if the Bus Total Power drops below the Start kW for one second.
The Start Accumulator may be filling while the engine is running in cooldown. If it reaches 100% before the cooldown is complete,
the generator will synchronize and close to the bus (it will not have to go through a start sequence).
Stop Accumulator. The Stop Accumulator fills from 0% to 100% while the Bus Total Load remains below the Stop kW. This
generator will be signaled to stop when this accumulator reaches 100%.
Note:
The Stop Accumulator will reset to 0% if the Bus Total Power exceeds the Stop kW for one second.
To Next Page
Loading...
Need help?
General
