Analysis of 3-phase Transformer no-load Characteristics

Document Type

Article

Publication Date

2-1995

Publication Title

IEEE Transactions on Power Systems

Volume

10

Issue

1

First page number:

18

Last page number:

26

Abstract

The traditional laboratory experiment on three- phase transformer connections consists of a qualitative observation of current and phase voltage waveforms by means of an oscilloscope, with emphasis placed on the dominant third harmonic component. Some recorded waveshapes, however, cannot be explained in simple terms without considering other harmonic components and the quality of power supply. This paper outlines an improved Iecture experiment that quantitatively analyzes the waveforms of various transformer connections under steady-state no-load conditions while taking into account the non-ideal voltage supply. The experimental data obtained with the aid of a harmonic analyzer are then compared to the qualitative predictions and the discrepancies are discussed.

Keywords

Electric distortion; Electric power distribution; Electric power systems; Harmonic analysis; Phase distortion (Electronics)

Disciplines

Controls and Control Theory | Electrical and Computer Engineering | Electrical and Electronics | Electromagnetics and Photonics | Signal Processing | Systems and Communications

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.


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