Rotating electrical machines - Part 27-5: Off-line measurement of partial discharge inception voltage on winding insulation under repetitive impulse voltage

IEC TS 60034-27-5:2021 provides an off-line measurement method of the partial discharge inception and extinction voltage on winding insulation under repetitive impulse voltage. This document is relevant to rotating machines supplied by a voltage source converter.

General Information

Status
Published
Publication Date
06-Apr-2021
Technical Committee
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
06-May-2021
Completion Date
07-Apr-2021
Ref Project

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IEC TS 60034-27-5:2021 - Rotating electrical machines - Part 27-5: Off-line measurement of partial discharge inception voltage on winding insulation under repetitive impulse voltage
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IEC TS 60034-27-5
®

Edition 1.0 2021-04
TECHNICAL
SPECIFICATION

colour
inside


Rotating electrical machines –
Part 27-5: Off-line measurement of partial discharge inception voltage on
winding insulation under repetitive impulse voltage
IEC TS 60034-27-5:2021-04(en)

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IEC TS 60034-27-5

®


Edition 1.0 2021-04




TECHNICAL



SPECIFICATION








colour

inside










Rotating electrical machines –

Part 27-5: Off-line measurement of partial discharge inception voltage on

winding insulation under repetitive impulse voltage

























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ICS 29.160.01 ISBN 978-2-8322-9648-6




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– 2 – IEC TS 60034-27-5:2021 © IEC 2021
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, symbols and abbreviated terms . 8
4 Repetitive impulse voltages for PD measurement . 11
4.1 General . 11
4.2 Waveform of single impulse voltage . 12
4.2.1 Waveform at impulse generator terminal without test object . 12
4.2.2 Typical distortions of impulse waveform at the terminals of test object . 14
4.3 Train of single impulse voltage . 17
4.4 Step-by-step voltage increase and decrease using trains of single impulse
voltage .
...

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