Table of Contents

FOREWORD<br>1 Scope<br>2 Normative references<br>3 Requirements with regard to ability to withstand short <br>&nbsp;&nbsp;circuit<br>&nbsp;&nbsp;3.1 General <br>&nbsp;&nbsp;3.2 Overcurrent conditions <br>4 Demonstration of ability to withstand short circuit <br>&nbsp;&nbsp;4.1 Thermal ability to withstand short circuit <br>&nbsp;&nbsp;4.2 Ability to withstand the dynamic effects of short <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;circuit <br>Annex A (informative) Theoretical evaluation of the ability <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;to withstand the dynamic effects of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;short circuit <br>Annex B (informative) Definition of similar transformer

Abstract

Identifies the requirements for power transformers to sustain without damage the effects of overcurrents originated by external short circuits. It describes the calculation procedures used to demonstrate the thermal ability of a power transformer to withstand such overcurrents and both the special test and the theoretical evaluation method used to demonstrate the ability to withstand the relevant dynamic effects.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 14
Supersedes	95/203532 DC : APR 95