Understanding Device Details for De‑Energized Devices
If a selected device is de-energized, the Power Flow Results tab is populated with a new column, PICKUP AMPS, and shows the load downstream of the selected network component from the PO or RO. The other Power Flow values (for example, Voltage, Deg, and so forth) are replaced with 0. The Power Flow status message is replaced with "De‑energized device (N/A)."
If the Pickup Amps are not calculated for the selected de-energized network component, then the Calculate Pickup Amps button is enabled on the power flow results tab. When you click the Calculate Pickup Amps button, Power Flow will solve for the pickup amps (load) downstream of the selected device, assuming the outage device (predicted or real) had been closed.
Power Flow Status Messages
Power Flow status messages are provided to better alert you of the quality of the power flow solution being generated. They are displayed at the bottom of the Power Flow Results tab along with the date and time of the latest result.
Note: The power flow analysis solution type (that is, kVA or Power Flow) is appended to the end of the status message. If an area of the model is set as disabled, a message of "Power Flow Disabled" will be displayed.
Status messages for the NMS product configuration:
• Power Flow Solution Pending indicates that the power flow solutions are currently paused due to recent system topology changes and results will not be available until the configured delay has ended.
• Power Flow Solved indicates that the power flow calculations have completed successfully and the results are valid.
• Inconclusive Power Flow Solution indicates that Power Flow cannot find a stable solution since each iteration of the power flow algorithm yields a changing result.
• Power Flow Not Solved - Suspect SCADA data indicates that power flow solution failed to solve successfully due to SCADA data irregularities. See
Chapter 17,
Feeder Load Management for details on identifying SCADA data irregularities.
• Power Flow Not Solved - Data Model Error indicates there is an issue with some part of the data model that will not allow a reasonable solution to the power flow calculation.
Note: If a selected device is de-energized, the Power Flow Results tab is populated with the PICKUP AMPS column, and shows the load downstream of the selected network component from the PO or RO. The other Power Flow values (for example, Voltage, Deg, and so forth) are replaced with 0. The Power Flow status message is replaced with "De‑energized device (N/A)."