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Y-Delta-Y Transformer With Buried Delta Support In The New PF Engine (Doc ID 2744559.1)

Last updated on JUNE 18, 2021

Applies to:

Oracle Utilities Network Management System - Version and later
Oracle Network Management for Utilities - DMS - Version and later
Information in this document applies to any platform.


On : version, Y-Delta-Y transformer with buried delta support in the new PF Engine

If a project has Y-Delta-Y transformers with 0 and 180 degrees phase shift between Y windings and delta winding is buried. Power flow results are OK for these transformers but the single phase to ground fault currents are not correct due to the missing buried delta winding, impedance not being considered in fault calculations. Need to add the winding support in the new power flow engine




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