Feeder Load Management Details
The Feeder Load Management Details window provides information about a selected row in the Feeder Load Management Feeder Load Overview Tab. It is accessed by double-clicking the row or by clicking the Feeder Load Management Details (
) button.
) button.The Feeder Load Management Details window has the following tabbed data views; any views that do not return data will be desensitized.
• Violations Tab: displays identified device overload violations and energy assessment warnings for the feeder selected in the Feeder Load Overview Tab.
• Tie Points Tab: displays all three-phase open tie points for the feeder selected in the Feeder Load Overview Tab.
• Transformers Tab: displays all Transformers electrically connected to feeder selected on the Feeder Load Overview Tab.
• Shunt Devices Tab: displays all downstream capacitor and reactor banks for the feeder selected on the Feeder Load Overview Tab.
• Equivalent Sources Tab: displays all sources electrically connected to the feeder selected on the Feeder Load Overview Tab.
• Voltage Profile Graph: displays voltage profile loads for the selected feeder on the Feeder Load Overview Tab.
Violations Tab
The Violations tab displays identified device overload violations and energy assessment warnings for the feeder selected in the Feeder Load Overview Tab pane.
The Violations data includes the following columns:
• Device: The device's name.
• Violation: The violation or warning name. See Feeder/Device Condition Names and Colors on page D-7 for range of values and colors for this column.
• Phase: The phase that the violation is on
• Value: The violation/warning value
• %: Value percent of limit or nominal voltage, for voltage violations and warnings. The Violations table is sorted based on this column.
• Limit: The device limit for violated attribute.
• Units: The validation type unit (that is, A, kVA, kVAr, kV).
Violations Toolbar
The Violations toolbar provides the following options:
• Click the Focus button () to focus t to focus the Viewer on the selected device.
• Click the Print button () to print the table.
• Select the data criteria from the Violations and Warnings context menu; options are: Violations Only, Warnings Only, or Violations and Warnings context menu.
• Select the device class from the Violations Types context menu. The number of devices having the violations or warnings is provided in parenthesis.
Device Violations History Window
The Device Violations History window provides information about the violations history on a selected device. To access the window, select a row for a device in the Violations tab, right-click and select Device Violations History....
It includes following columns.
• Violation Type: The Type of the violation (for example, Under Voltage, Over Voltage).
• Value: The violation value.
• Limit: The device limit for violated attribute.
• %: The percentage of the limit; for example, if a device was 5 percent over the limit, the value in the column would be 105.
• Phase: The phase that the violation is on.
• Units: The validation type unit (A, kVA, kVAr, kV).
• Start Date: The date and time when the violation began.
• End Date: The date and time when the violation ended.
The Device Violations History window also shows the selected device's class and name above the table.
Relieve Violations Option
The Violations tab provides an option that allows you to select a violation and automatically invoke the Suggested Switching Relieve Violations objective. This option will focus the Viewer on the selected device, create a Viewer study session (if not already created), set up the load scenario in the Viewer to match the date and time of the violation, and, finally, open Suggested Switching with the Relieve Violations objective already selected.
Note: If a study session has already been created in the Viewer, a confirmation dialog box will let you know that starting the Study Session will reset the topology to real-time.
Click Next on the Suggested Switching window to start generating a plan (since the loading conditions and objective have already been preselected). This option allows you to quickly generate a set of suggested switching steps to mitigate a future forecast violation.
Tie Points Tab
The Tie Points tab displays all three-phase open tie points for the feeder selected in the Feeder Load Overview Tab. A tie point is a three-phase open switch of an accepted and configured set of switch classes. The open switch doesn't need to be in its nominal position.
The Tie Points Capacity table includes the following columns:
• Tie Point: The tie point name
• To Feeder: The adjacent feeder that will be connected to the current feeder if the tie point is closed.
• To Substation: The To Feeder's substation name
• To Feeder Amps A: To Feeder Phase A Current
• To Feeder Amps B: To Feeder Phase B Current
• To Feeder Amps C: To Feeder Phase C Current
• Pickup Amps A: Phase A current pickup capacity
• Pickup Amps B: Phase B current pickup capacity
• Pickup Amps C: Phase C current pickup capacity
• Limit Device Phase A: ID of limiting device for Phase A.
• Limit Device Phase B: ID of limiting device for Phase B.
• Limit Device Phase C: ID of limiting device for Phase C.
Tie Points Toolbar
The Feeder Tie Points Capacity Overview toolbar provides the following options:
• Click the Focus button () to focus the Viewer on a selected feeder. This button is disabled until the user selects a row in the Tie Points Capacity table.
• Click the Feeder Load Management button () to open Feeder Load Management 2 for the feeder listed in the To Feeder column of the selected row. This button is disabled until the user selects a row in the Tie Points Capacity Overview table. If Feeder Load Management 2 is already open, it is updated with the data for the "To Feeder."
• Click the Print button () to print the Tie Points table.
Transformers Tab
The Transformers tab displays all Transformers electrically connected to feeder selected on the Feeder Load Overview Tab.
The Transformer Details table includes the following columns:
Note: Administration and Full Operations users can change some of regulation devices parameters in Real-Time Mode for SCADA and non-SCADA devices. If configured this will send out the associated control action for SCADA devices. All user types have access to edit regulation device parameters while in study mode; no control actions will be sent out, the status will simply be reflected in the NMS model for study simulations.
• Device: The device name
• Device Type: The type of device (Regulator or Transformer)
• kV A: Device Phase A Voltage
• kV B: Device Phase B Voltage
• kV C: Device Phase C Voltage
• Voltage Setpoint: The voltage regulation set point. Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box when the Regulation Type is not No Tap or Fixed Tap and the Automatic Control is On.
Note: If the device is configured for unganged regulation each independent phase specific voltage setpoint will be displayed in this column. For devices that are configured for ganged regulation a single voltage setpoint will be displayed.
• Tap Step: The tap position. Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box to a value between Min Tap Step and Max Tap Step when the Regulation Type is not No Tap and Automatic Control is Off.
Notes:
• If the feeder was solved using a kVA based power flow solution, this column will display N/A since tap position cannot be solved for.
• If the device is configured for un-ganged regulation each independent phase specific tap position will be displayed in this column. For devices that are configured for ganged regulation a single tap position will be displayed.
• Min Tap Step: The minimum tap step position
• Max Tap Step: The maximum tap step position
• Regulation Type: The regulation type
• Automatic Control: Specifies if the device is automatically regulated to the Voltage Setpoint. Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box to On or Off when the Regulation Type is not No Tap or Fixed Tap.
• Limit: The limit of the device.
Note: For transformers, this value will be displayed in kVA; for regulators, the value will be displayed in Amps.
Shunt Devices Tab
This tab displays all downstream capacitor and reactor banks for the feeder selected on the Feeder Load Overview Tab.
The Shunt Devices table includes the following columns:
Note: Administration and Full Operations users can change some of the applicable regulation device parameters in Real-Time Mode for SCADA and non-SCADA devices. If configured this will send out the associated control action for SCADA devices. In study mode all user types have access to edit regulation device parameters. While in study mode NO control actions will be sent out, the status will simply be reflected in the NMS model for study simulations.
• Device: The device name
• Device Type: The type of device (Capacitor or Reactor)
• kVAr A: Device Phase A Reactive Power
• kVAr B: Device Phase B Reactive Power
• kVAr C: Device Phase C Reactive Power
• On Threshold: The on threshold. Administration and Full Operations users can change the value of this column when the Regulation Type is not fixed and the Automatic Control is on.
• Off Threshold: The off threshold. Administration and Full Operations users can change the value of this column when the Regulation Type is not fixed and the Automatic Control is on.
• Position: Indicates the current shunt status being either "on" or "off". When the device is in the off state, it will also show open in the NMS model. It will be expected that operators will use the Open/Close Control Tool operations to alter the state of the shunt.
Note: If the feeder was solved using a kVA based power flow solution and the capacitor is voltage regulating, this column will display N/A since energized steps cannot be solved for.
• Regulation Type: The regulation type of the shunt devices. The regulation types is displayed as one of the following: Fixed, Bus Voltage, Line Current, Line VAR, Line Power Factor, or Temperature.
• Measurement Attribute: The monitored attribute of regulated bus voltage, line flow, or area time/temperature.
• Automatic Control: Administration and Full Operations users can switch the value of this column between on and off when the Regulation Type is not fixed.
• Quality: Indicates the data validity. Possible values: Valid, Suspect, Invalid, or Estimated. Estimated is used to indicate if NMS has performed state estimation on the capacitor based on provided SCADA telemetry.
• Operations Count: Number of close operations on the shunt device in the last calendar day or configured history period.
• Operations Count Threshold: Threshold limit of close operations beyond which Optimization penalizes the shunt device.
Equivalent Sources Tab
This tab displays all sources electrically connected to the feeder selected on the Feeder Load Overview Tab.
The Equivalent Sources table includes the following columns:
Note: The option to adjust regulation settings for Equivalent Sources will only be present while in study mode. These devices represent pseudo points in the model and it would not be realistic to adjust these in a real-time setting. In study mode all user will have the ability to alter the settings to try "what-if" scenarios and see how changes would affect the model.
• Source Name: The name of the source
• kW A: Source Phase A Active Power
• kW B: Source Phase B Active Power
• kW C: Source Phase C Active Power
• kVAr A: Source Phase A Reactive Power
• kVAr B: Source Phase B Reactive Power
• kVAr C: Source Phase C Reactive Power
• Amps A: Source Phase A Current
• Amps B: Source Phase B Current
• Amps C: Source Phase C Current
• kV: Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box for non‑SCADA devices. Measurements for SCADA devices may be edited in the SCADA Summary by right-clicking a SCADA device row and choosing the SCADA Summary option from the context menu.
• Angle: Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box for non‑SCADA devices. Measurements for SCADA devices may be edited in the SCADA Summary by right-clicking a SCADA device row and choosing the SCADA Summary option from the context menu.
• Validity: Data validity. Possible values: Valid, Suspect, or Invalid.
Distributed Generation Tab
This tab displays all downstream Distributed Generation for the feeder selected on the Feeder Load Overview Tab.
The Primary|All option menu on the toolbar allows you to select from:
• Primary (default): restricts the display to significant (Utility Owned or Commercial) units.
• All: include net-metered residential units.
The Distributed Generation table includes the following columns:
Note: Administration and Full Operations users can change some of the applicable regulation device parameters in Real Time Mode for SCADA and non‑SCADA devices. If configured, this will send out the associated control action for SCADA devices. In study mode, all user types have access to edit regulation device parameters. While in study mode, no control actions will be sent out; the status will simply be reflected in the NMS model for study simulations.
• Name: The name of the generator
• kV A: Voltage A (kV)
• kV B: Voltage B (kV)
• kV C: Voltage C (kV)
• kW: Real Power Output (kW). Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box to a value between 0 and the generator output.
• kVAr: Reactive Power Output (kVAr). Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box to a value between 0 and the generator output.
• Voltage Regulation: Indicates if Voltage Regulation is present. Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box to either on or off for devices that are voltage regulated.
• Voltage Setpoint: The voltage regulation set point. Administration and Full Operations users can change this value using the Regulation Device Parameters dialog box when Voltage Regulation is present on the device and turned on.
• Min PF - Leading: Minimum Leading Power Factor
• Min PF - Lagging: Minimum Lagging Power Factor
• Target kW: Real Power Target (kW)
• Target kVAr: Real Power Target (kVAr)
• TTL Expiration: the time to live expiration of the generator. Administration and Full Operations users can reset this value using the Regulation Device Parameters dialog box if the device is affected by TTL. This value can be driven from a SCADA signal.
• Status: whether the unit is On or Off; can be driven from a SCADA signal. Like, kW and kVAr, the status can be modified using the Regulation Device Parameters dialog box.
• Charge Mode: whether the unit is Charging, Discharging, or Idling; can be driven from a SCADA signal.
• Wind Speed (mph): the wind speed of the DER zone.
Note: For wind DERs, it will show the speed of its zone; for non-wind DERs, it will show N/A.
• Cloud Cover: The cloud cover of the DER zone.
Note: For solar DERs, it will show the cloud cover data of its zone; for non-solar DERs, it will show N/A.
Load Details Tab
The Load Details tab displays all sources electrically connected to the feeder selected on the Feeder Load Overview Tab. The feeder head will typically characterize each feeder and 3 to 5 closed sectionalizing devices. Some of these sectionalizing devices will have measurements and may be supervisory control points.
Note: This pane is available only when a present load row is selected in the Feeder Load Overview table.
Click the power flow results button () to toggle on/off a filter that displays only SCADA readings. When toggled on, only SCADA devices are displayed in the Load Details table. This view displays the device readings and data quality.
The Load Details includes the Feeder Load Details table and a toolbar. In study mode, the toolbar includes a refresh button and a device field that allows you to add a particular device to the Load Details screen and the Devices drop-down list on the FLM Graphical View tab. Click the Refresh button to trigger a new solution with this device. The Load Details table includes the following columns:
• Device: The name of the device.
• Amps A: Solved Phase A Current
• Amps B: Solved Phase B Current
• Amps C: Solved Phase C Current
• Amps N: Solved Neutral Current
• kW A: Solved Phase A Active Power
• kW B: Solved Phase B Active Power
• kW C: Solved Phase C Active Power
• kVAr A: Solved Phase A Reactive Power
• kVAr B: Solved Phase B Reactive Power
• kVAr C: Solved Phase C Reactive Power
• kVA A: Solved Phase A Apparent Power
• kVA B: Solved Phase B Apparent Power
• kVA C: Solved Phase C Apparent Power
• kV A: Solved Phase A Voltage
• kV B: Solved Phase B Voltage
• kV C: Solved Phase C Voltage
• Has SCADA: Flag indicating whether it is a SCADA device (hidden by default).
• Quality A: Phase A quality code. Displayed when the power flow results button has been toggled on.
• Quality B: Phase B quality code. Displayed when the power flow results button has been toggled on.
• Quality C: Phase C quality code. Displayed when the power flow results button has been toggled on.
Quality codes can be one of the following:
• Filtered: Measurement point has been filtered (removed) from consideration in the load flow engine.
• Valid: All data associated with this measurement seems to be valid.
• Invalid: Measurement point has been flagged as invalid by data gathering system (for example, SCADA).
• Estimated: Value has been estimated by state estimation.
• Suspect: A component of a field measurement that contributes to this value is missing, out of range, or otherwise suspect.
• Load: There is an irreconcilable mismatch between the load reported by field measurements and the load flow model. For example, a section with no generation has negative load.
• Profile: There is a significant difference between the expected power factors from the model and that reported by field measurements.
• Factor A (kW/kVAr): The phase A kW/kVAr scaling factors that are applied to scale the load. Displayed when the power flow results button has been toggled off and SCADA values are displayed.
• Factor B (kW/kVAr): The phase B kW/kVAr scaling factors that are applied to scale the load. Displayed when the power flow results button has been toggled off and SCADA values are displayed.
• Factor C (kW/kVAr): The phase C kW/kVAr scaling factors that are applied to scale the load. Displayed when the power flow results button has been toggled off and SCADA values are displayed.
Voltage Profile Graph Tab
The Voltage Profile Graph tab displays a graph of voltage load (p.u.) versus distance from the feeder head for a feeder selected in the Feeder Load Overview Tab. The graph also displays the upper and lower ANSI Range A violation limits (1.05 and 0.95 p.u., respectively).
Note: This pane is available only when a present load row is selected in the Feeder Load Overview table.
Supply points are represented by a symbol in their phase color. You can choose to view all phases (default) or individual phases by selecting the phase from the drop-down list.
Drop-Down List Options
• All: displays all phases plotted in their respective colors.
• Phase A: Phase A loads are displayed (red dots).
• Phase B: Phase B loads are displayed (yellow triangles).
• Phase C: Phase C loads are displayed (blue squares).
Note: Bellwether loads are displayed in pink.