High-voltage switchgear and controlgear Capacitive current switching capability of air-insulated disconnectors for rated voltages above 52 kV

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

25-11-2009

Publisher

British Standards Institution

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Background and purpose
5 Switching tests
Annex A (informative) - Analysis
Annex B (informative) - Capacitive charging currents
Annex C (informative) - Test circuits

Pertains to high-voltage air-insulated disconnectors for rated voltages above 52 kV.

This technical report applies to high-voltage air-insulated disconnectors for rated voltages above 52 kV. The report describes the capacitive current switching duty and provides guidance on laboratory testing to demonstrate the switching capability. Air-insulated disconnectors equipped with auxiliary interrupting devices are included under this scope.

NOTE For manually operated disconnectors, the in-service safety of the operator should be considered and it should be recognized that the results of the switching tests described herein (performed using motor-operated disconnectors) are not necessarily representative of the performance of such disconnectors in actual service. Due diligence should be exercised if the switching tests indicate that prolonged arc durations are probable.

Committee	PEL/17
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
IEC TR 62271-305:2009	Identical

IEC 62271-1:2017	High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
IEC 62271-102:2001+AMD1:2011+AMD2:2013 CSV	High-voltage switchgear and controlgear - Part 102: Alternatingcurrent disconnectors and earthing switches

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PD IEC/TR 62271-305:2009

High-voltage switchgear and controlgear Capacitive current switching capability of air-insulated disconnectors for rated voltages above 52 kV

Table of Contents

Abstract

Scope

General Product Information

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