The influence of transformer winding connections on the propagation of voltage sags

This paper presents the influence of different types of transformer winding connections on the propagation of voltage sags caused by symmetrical and asymmetrical faults in the power system. Single and multiple transformers are considered. A particular propagation of voltage sags from customer buses...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2006-01, Vol.21 (1), p.262-269
Main Authors: Myo Thu Aung, Milanovic, J.V.
Format: Article
Language:English
Subjects:
Admittance
Applied sciences
Asymmetry
Automation
Buses (vehicles)
Electrical engineering. Electrical power engineering
Electrical equipment industry
Electrical power engineering
Electronic equipment
Entrances
Exact sciences and technology
Fault location
Joints
Networks
Operation. Load control. Reliability
Power networks and lines
Power quality
Power system faults
Power system modeling
Production
propagation of voltage sags
transformer winding connections
Transformers
Users connections and in door installation
Voltage sags
Winding
Windings
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Description
Summary:This paper presents the influence of different types of transformer winding connections on the propagation of voltage sags caused by symmetrical and asymmetrical faults in the power system. Single and multiple transformers are considered. A particular propagation of voltage sags from customer buses to industry facilities through the transformers employed at the entrance of the facilities is highlighted in the study. Different winding connections, dominantly used in the U.K. distribution networks, were modeled at the service transformers. The study was performed on a generic distribution network, and a bus from the 11-kV distribution network was randomly selected. It was found that the performance of voltage sags inside the industry facility is a function of transformer connections used at the service transformer.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2005.855446