Experimental Study of Magnetic Effects of Steel Tanks on Three-Phase Transformer Transients

Qiong Wu; Digvijay Deswal; Ming Yang; Siwei Wang; Francisco De Leon

doi:10.1109/TPWRD.2019.2920105

Experimental Study of Magnetic Effects of Steel Tanks on Three-Phase Transformer Transients

Qiong Wu, Digvijay Deswal, Ming Yang, Siwei Wang, Francisco De Leon

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents an experimental study of the magnetic effects of steel tanks on different three-phase transformers. Removable steel tanks are designed and built for transformers with distinct sizes and core topologies. Corresponding tanks of nonmagnetic materials are also built to study the effects of tank material. Zero-sequence tests, open-circuit (no-load) tests, ferroresonance, geomagnetically induced current (GIC), and energization (inrush current) tests are performed on the transformers with and without tanks. The results indicate that steel tanks have a significant effect on the zero-sequence impedance, ferroresonance performance, GIC, and no-load losses in steady state, while the tank has no appreciable effect on inrush currents.

Original language	English (US)
Article number	8730507
Pages (from-to)	665-673
Number of pages	9
Journal	IEEE Transactions on Power Delivery
Volume	35
Issue number	2
DOIs	https://doi.org/10.1109/TPWRD.2019.2920105
State	Published - Apr 1 2020

Keywords

Ferroresonance
GIC
inrush-currents
no-load loss
three-phase transformer
transformer tank
zero-sequence impedance

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1109/TPWRD.2019.2920105

Cite this

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title = "Experimental Study of Magnetic Effects of Steel Tanks on Three-Phase Transformer Transients",

abstract = "This paper presents an experimental study of the magnetic effects of steel tanks on different three-phase transformers. Removable steel tanks are designed and built for transformers with distinct sizes and core topologies. Corresponding tanks of nonmagnetic materials are also built to study the effects of tank material. Zero-sequence tests, open-circuit (no-load) tests, ferroresonance, geomagnetically induced current (GIC), and energization (inrush current) tests are performed on the transformers with and without tanks. The results indicate that steel tanks have a significant effect on the zero-sequence impedance, ferroresonance performance, GIC, and no-load losses in steady state, while the tank has no appreciable effect on inrush currents.",

keywords = "Ferroresonance, GIC, inrush-currents, no-load loss, three-phase transformer, transformer tank, zero-sequence impedance",

author = "Qiong Wu and Digvijay Deswal and Ming Yang and Siwei Wang and {De Leon}, Francisco",

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T1 - Experimental Study of Magnetic Effects of Steel Tanks on Three-Phase Transformer Transients

AU - Wu, Qiong

AU - Deswal, Digvijay

AU - Yang, Ming

AU - Wang, Siwei

AU - De Leon, Francisco

PY - 2020/4/1

Y1 - 2020/4/1

N2 - This paper presents an experimental study of the magnetic effects of steel tanks on different three-phase transformers. Removable steel tanks are designed and built for transformers with distinct sizes and core topologies. Corresponding tanks of nonmagnetic materials are also built to study the effects of tank material. Zero-sequence tests, open-circuit (no-load) tests, ferroresonance, geomagnetically induced current (GIC), and energization (inrush current) tests are performed on the transformers with and without tanks. The results indicate that steel tanks have a significant effect on the zero-sequence impedance, ferroresonance performance, GIC, and no-load losses in steady state, while the tank has no appreciable effect on inrush currents.

AB - This paper presents an experimental study of the magnetic effects of steel tanks on different three-phase transformers. Removable steel tanks are designed and built for transformers with distinct sizes and core topologies. Corresponding tanks of nonmagnetic materials are also built to study the effects of tank material. Zero-sequence tests, open-circuit (no-load) tests, ferroresonance, geomagnetically induced current (GIC), and energization (inrush current) tests are performed on the transformers with and without tanks. The results indicate that steel tanks have a significant effect on the zero-sequence impedance, ferroresonance performance, GIC, and no-load losses in steady state, while the tank has no appreciable effect on inrush currents.

KW - Ferroresonance

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KW - inrush-currents

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KW - three-phase transformer

KW - transformer tank

KW - zero-sequence impedance

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Experimental Study of Magnetic Effects of Steel Tanks on Three-Phase Transformer Transients

Abstract

Keywords

ASJC Scopus subject areas

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