Powerflow Balloon Shows Wrong Values for Low-Side of Tertiary Winding Transformers
(Doc ID 2731504.1)
Last updated on NOVEMBER 24, 2020
Applies to:
Oracle Network Management for Utilities - DMS - Version 2.4.0.1.0 to 2.5.0.0.0 [Release 2.4 to 2.5] Oracle Utilities Network Management System - Version 2.4.0.1.0 to 2.5.0.0.0 [Release 2.4 to 2.5] Information in this document applies to any platform.
Symptoms
On : 2.4.0.1.0 version, NMS Infrastructure
The Powerflow Balloon is showing incorrect Fault Currents on the Low-Side of Tertiary winding Transformers
A model has tertiary winding transformers with buried delta windings. The model is populated with transformers that have the winding configuration of StarStarDelta1. The fault currents shown on the low side of these transformers in the power flow balloon are incorrect.
Fault current values should always be correct
Cause
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