Investigation of magnetizing inrush current in transformers; Part 1 - Numerical simulation

Journal Article · Fri Jan 01 04:00:00 EST 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.180343· OSTI ID:6411203

Lin, C E; Cheng, C L; Huang, C L; Yeh, J C ^[1]

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1. Cheng Kung Univ., Tainan (Taiwan, Province of China)

Measurements of transformer inrush currents offer important data for a power systems operation and protection. Since inrush currents result from systems transient, it is difficult to observe and analyze. This paper proposes a simple method to simulate the magnetizing inrush currents using real time measurements. The proposed method formulates a simplified model to represent the inrush current under different loading conditions. A digital simulation method is proposed using a PC-AT micro computer. Transformer operating conditions, including transformer loading power factors, switching-on angles, and remanent flux, are also included. The simulation results are compared with experiment results with very good agreements.

• OSTI ID: 6411203
• 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. 8:1; ISSN ITPDE5; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
AC SYSTEMS
COMPUTERIZED SIMULATION
COMPUTERS
CURRENTS
DIGITAL COMPUTERS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
MAGNETIC FIELDS
MAGNETIZATION
MICROCOMPUTERS
PERSONAL COMPUTERS
POWER SYSTEMS
SIMULATION
TRANSFORMERS