FEM analysis of DC saturation to assess transformer susceptibility to geomagnetically induced currents

Journal Article · Thu Jul 01 00:00:00 EDT 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.252663· OSTI ID:6089428

Lu, Shu; Liu, Yilu ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Bradley Dept. of Electrical Engineering

The paper presents results of a systematic finite element (FEM) simulation of transformer susceptibility to geomagnetically induced currents (GIC). DC saturation patterns for five different transformer core designs are examined using FEM; magnetic fields along various traverses are provided. Impedance matrix entries of a single phase transformer are compared for normal and dc saturation operations. The study aims to contribute in the understanding of fundamental transformer magnetization mechanism under GIC.

• OSTI ID: 6089428
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:3; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
CALCULATION METHODS
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
FARADAY CURRENT
FARADAY INDUCTION
FINITE ELEMENT METHOD
GEOMAGNETIC FIELD
INDUCTION
MAGNETIC FIELDS
MAGNETIC FLUX
MAGNETIC STORMS
NUMERICAL SOLUTION
POWER SYSTEMS
TRANSFORMERS