scope:

Foreword

This guide was written to provide electronics transformer engineers with a standard method for detecting and measuring corona (partial discharge) in electronics transformers. Since there is no simple definition or unit for corona, it is felt that a guide of this nature will be useful in establishing a common ground of understanding between transformer and systems design engineers and transformer manufacturers in the development of service and performance requirements.

This publication was prepared by the Insulation Systems Subcommittee of the Electronics Transformers Technical Committee of the IEEE Power Electronics Society. The Subcommittee membership was as follows:

R. A. Frantz, Chair

J. S. Andreeen

C. J. Elliott

H. Fickenscher

P. K. Goethe

R. R. Grant

H. E. Lee

D. N. Ratliff

R. L. Sell

B. D. Thackwray

R. M. Wozniak

When the Electronics Transformer Technical Committee approved this guide, the membership was as follows:

H. Fickenscher, Chair

E. D. Belanger

C. J. Elliott

R. A. Frantz

P. K. Goethe

J. Silgailis

J. Tardy

B. D. Thackwray

R. M. Wozniak

H. E. Lee

W. E. Lucarz

D. N. Ratliff

R. L. Sell

The following persons were on the balloting committee that approved this standard for submission to the IEEE Standards Board:

J. S. Andresen

E. D. Belanger

R. P. Carey

E. J. Elliott

H. Fickenscher

R. A. Frantz

P. K. Goethe

R. R. Grant

O. Kiltie

L. W. Kirkwood

H. E. Lee

R. Lee

H. W. Lord

W. Lucarz

D. Ratliff

R. L. Sell

J. Silgailis

J. Tardy

B. D. Thackwray

H. I. Tillinger

R. G. Wolpert

R. M. Wozniak

The final conditions for approval of this guide were met on February 11, 1991. This guide was conditionally approved by the IEEE Standards Board on September 28, 1990 with the following membership:

Marco W. Migliaro, Chair

James M. Daly, Vice Chair

Andrew G. Salem, Secretary

Dennis Bodson

Paul L. Borrill

Fletcher J. Buckley

Allen L. Clapp

Stephen R. Dillon

Donald C. Fleckenstein

Jay Forster*

Thomas L. Hannan

Kenneth D. Hendrix

John W. Horch

Joseph L. Koepfinger*

Irving Kolodny

Michael A. Lawler

Donald J. Loughry

John E. May, Jr.

Lawrence V. McCall

L. Bruce McClung

Donald T. Michael*

Stig Nilsson

Roy T. Oishi

Gay S. Robinson

Terrance R. Whittemore

Donald W. Zipse

Scope

This guide covers the detection of corona (partial discharge) and the measurement of its magnitude in electronics transformers. Test conditions, test apparatus, calibration, and test requirements are included.