Title :
Investigation of magnetizing inrush current in transformers. I. Numerical simulation
Author :
Lin, C.E. ; Cheng, C.L. ; Huang, C.L. ; Yeh, J.-C.
Author_Institution :
Cheng Kung Univ., Tainan, Taiwan
fDate :
1/1/1993 12:00:00 AM
Abstract :
A simple method for simulating magnetizing inrush currents in power transformers using real-time measurements is proposed. The method is based on a simplified model for representing the inrush current under different loading conditions. A digital simulation method using a PC-AT microcomputer is also proposed. Transformer operating conditions, including transformer loading power factors, switching-on angles, and remanent flux, are included. The simulation result show very good agreement with experiment results
Keywords :
digital simulation; magnetisation; microcomputer applications; power engineering computing; power factor; power transformers; PC-AT microcomputer; digital simulation; magnetisation; magnetizing inrush current; power factors; power transformers; real-time measurements; remanent flux; switching angles; Hysteresis; Magnetic analysis; Magnetic flux; Numerical simulation; Power system modeling; Power system protection; Power system simulation; Saturation magnetization; Surge protection; Transformer cores;
Journal_Title :
Power Delivery, IEEE Transactions on
