Full Description

Scope

This application guide covers procedures and calculations necessary to apply the standard transient recovery voltage (TRV) ratings for ac high-voltage circuit breakers with rated maximum voltage above 1000 V. The breaking capability limits of these circuit breakers are determined to a great degree by the TRV. This application guide is not included in other existing circuit breaker standards. In this document, the TRV ratings are compared with typical system TRV duties. Examples of TRV calculation are given with suggested options if the TRV duty exceeds the TRV ratings of the circuit breaker.

Purpose

The purpose of this guide is to provide an application guide on the TRV ratings given in IEEE Std C37.04(TM) for ac high-voltage circuit breakers rated on a symmetrical current basis. Definitions, rating structure, test procedures, and preferred transient voltage ratings and related required capabilities are included in IEEE Std C37.04, IEEE Std C37.09(TM), and IEEE Std C37.06.1(TM). IEEE Std C37.010(TM) applies in other respects to these circuit breakers.

Abstract

Revision Standard - Active.The procedures and calculations necessary to apply the standard transient recovery voltage (TRV) ratings for ac high-voltage circuit breakers rated above 1000 V are covered in this guide. The breaking capability limits of these circuit breakers are determined to a great degree by the TRV. The TRV ratings are compared with typical system TRV duties. Examples of TRV calculation are given with suggested options if the TRV duty exceeds the TRV ratings of the circuit breaker.

Product Details

Published: 05/30/2019 ISBN(s): 9781504458580, 9781504455565, 9781504455572, 9781504459563, 9781504459570 Number of Pages: 119 File Size: 1 file , 11 MB Redline File Size: 2 files , 23 MB Product Code(s): STD23554, STDRL23554, STDPD23554, STDPDRL23554, STDPL23554