IEC 62271-111:2005

INTERNATIONAL IEC
STANDARD 62271-111
First edition
2005-11
IEEE

C37.60
High voltage switchgear and controlgear –

Part 111:
Overhead, pad-mounted, dry vault, and
submersible automatic circuit reclosers
and fault interrupters for alternating
current systems up to 38 kV
Reference number
IEC 62271-111(E):2005
IEEE Std. C37.60(E):2003
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INTERNATIONAL IEC
STANDARD 62271-111
First edition
2005-11
IEEE

C37.60
High voltage switchgear and controlgear –

Part 111:
Overhead, pad-mounted, dry vault, and
submersible automatic circuit reclosers
and fault interrupters for alternating
current systems up to 38 kV
© IEEE 2005  Copyright - all rights reserved
IEEE is a registered trademark in the U.S. Patent & Trademark Office, owned by the Institute of Electrical and Electronics Engineers, Inc.
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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Telephone: +1 732 562 3800 Telefax: +1 732 562 1571 E-mail: stds-info@ieee.org Web: www.standards.ieee.org
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International Electrotechnical Commission
Международная Электротехническая Комиссия

– 2 – IEC 62271-111:2005(E)
IEEE C37.60-2003(E)
CONTENTS
FOREWORD . 4
IEEE Introduction . 7
1. Scope.8
2. References.8
3. Definitions.10
4. Service conditions.11
4.1 Usual service conditions.11
4.2 Unusual service conditions.11
5. Rating.12
5.1 Rating information. 12
5.2 Rated maximum voltage.12
5.3 Rated power-frequency. 13
5.4 Rated continuous current.13
5.5 Rated minimum tripping current (for series-trip reclosers/FIs).14
5.6 Rated symmetrical interrupting current.14
5.7 Rated symmetrical making current.16
5.8 Rated lightning impulse withstand voltage.16
5.9 Rated control voltage and ranges. 16
5.10 Rated line and cable charging interrupting currents (where applicable). 16
6. Design tests (type tests).22
6.1 General. 22
6.2 Insulation (dielectric) tests.22
6.3 Switching tests. 25
6.4 Making current capability. 28
6.5 Rated symmetrical interrupting current tests. 28
6.6 Minimum tripping current tests. 39
6.7 Partial discharge (corona) tests. 40
6.8 Radio influence voltage tests (RIV). 41
6.9 Surge current test; series-trip reclosers/FIs.42
6.10 Temperature rise test. 43
6.11 Time–current tests.45
6.12 Mechanical duty test.46
Published by IEC under licence from IEEE. © 2005 IEEE. All rights reserved.
[12:40 7/8/03 K:/SGML/Ieee/C37.60-2003/Revises-III/C.37.60-2003.3d] Ref: C.37.60-2003 Page: 6 1–70

IEEE C37.60-2003(E)
6.13 Control electronic elements surge withstand capability (SWC) tests . 46
6.14 Condition of recloser/FI after each test of 6.3 and 6.5 . 48
7. Production tests (routine tests) . 49
7.1 Reclosing and overcurrent trip calibration. 50
7.2 Control, secondary wiring, and accessory devices check tests. 50
7.3 Dielectric withstand test; 1-min. dry power-frequency. 50
7.4 Partial discharge test. 50
7.5 Mechanical operations tests.50
7.6 Water leak test . 51
8. Field tests on units in service, including dc withstand tests on cables. 51
9. Construction requirements. 52
9.1 Tank construction: submersible or dry vault reclosers/FIs . 52
9.2 Grounding provisions . 52
9.3 Insulating medium quantity indicators . 53
9.4 Oil sampling provision (submersible reclosers/FIs) . 53
9.5 Manual operating provision. 53
9.6 Position indicator. 53
9.7 Nameplate markings. 53
9.8 Stored energy mechanism charge indicator. 54
9.9 Enclosure integrity . 54
9.10 Counters. 54
9.11 Conductor terminal sizes . 54
9.12 Tank construction—pressurized reclosers/FIs only . 54
Annex A (informative) X/R Ratios. 55
Annex B (informative) Simulated surge arrester operation tests. 57
Annex C (normative) Method of drawing the envelope of the prospective transient
recovery voltage of a circuit and determining the representative parameters . 60
Annex D (informative) Background basis of recloser TRV values. 62
Annex E (informative) Altitude correction factors. 66
Annex F (informative) Bibliography. 69
Annex G (informative) List of Participants.70
Published by IEC under licence from IEEE. © 2005 IEEE. All rights reserved.
[12:40 7/8/03 K:/SGML/Ieee/C37.60-2003/Revises-III/C.37.60-2003.3d] Ref: C.37.60-2003 Page: 7 1–70

– 4 – IEC 62271-111:2005(E)
IEEE C37.60-2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 111: Overhead, pad-mounted, dry vault, and submersible
automatic circuit reclosers and fault interrupters
for alternating current systems up to 38 kV
FOREWORD
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equipment declared to be
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