See Also
The Load Information Dialog can be used to inspect and modify the model of a bus load. To view the Load Information Dialog, select the load and choose Show Dialog from the case information toolbar or right-click on the load of interest and select Load Information Dialog from the resulting local menu. This is very similar to its Edit Mode counterpart. The dialog has the following fields:
Bus Number
Unique number between 1 and 2,147,483,647 (equals 2^31 minus 1) used to identify the bus to which the load is attached. The dropdown box provides a list of all load buses with valid display filters. You can use the spin button to cycle through the list of load buses.
Bus Name
Unique alphabetic identifier for the bus to which the load is attached, consisting of up to eight characters. The dropdown box lists the names of all load buses in the case with valid display filters.
ID
Find By Number
To find a load by its number and ID, enter the number into the Bus Number field and the ID into the ID field. Then click this button.
Find By Name
To find a load by its name and ID, enter the bus name into the Bus Name field (case insensitive) and the ID into the ID field. Then click this button.
Find…
If you do not know the exact load bus number or name you are looking for, you can click this button to open the advanced search engine.
Status
Status of the load, either Closed (connected to terminal bus) or Open (not connected). You can use this status field to change the load's status.
Energized
Indicates if the load is energized. This is not the same as the Open or Closed status. A load may be in-service itself (closed) but not be energized, based on the statuses of other devices around the load. For example, in a full topology model, it is not uncommon for a load to have a status of Closed, but the load is not energized if a branch of type Circuit Breaker connecting the load to the system has a status of Open.
Labels
Clicking on this button will open the Label Manager dialog listing all the labels assigned for the selected load.
Area Number, Area Name
Number and name of the area the load is a member of.
Zone Number, Zone Name
Number and name of the zone the load is a member of.
Owner Number, Owner Name
Number and name of the owner the load is a member of. Loads DO NOT have to be owned by the same owner as the terminal bus.
Substation Number, Substation Name
Number and name of the substation the load is a member of.
Load Information
Base Load Model, Current Load
The Base Load Model fields are used to represent the amount of base real and reactive load at the bus. Usually this load is modeled as being "constant power," meaning that the amount of load is independent of the bus voltage magnitude. However, Simulator also permits modeling "constant current" load, for which the load varies in proportion to the bus voltage magnitude, and "constant impedance" load, for which the load varies in proportion to the square of the bus voltage magnitude. Values in these fields are specified in MW and MVR assuming one per unit voltage. All six fields in the Base Load Model section can be changed.
Distributed Generation
Added in Version 19 Distributed Generation MW and Mvar values may be specified with each load record. These values are only used when the Distributed Generation status is set to Closed. When Closed then this represent the distributed generation MW and Mvar represented inside this load. When this is in use, then the net MW and Mvar seen by the power flow solution algorithm will be equal to the Base Load Values minus the Distributed generation.
The Net MW Load is then NetMW=MW - DistMW and NetMvar = Mvar - DistMvar
Load Multiplier
The actual load at the bus is equal to the base value multiplied by the corresponding load multiplier. The load multiplier is a value specifying how the load is scaled. The load multiplier depends upon the area load multiplier and the zone load multiplier. See Load Modeling for more details. The load multiplier value cannot be changed on this dialog.
Bus Voltage Magnitude
Voltage magnitude of the load’s terminal bus.
Information about the remaining tabs on the dialog can be found at the following links: