IEC 62040-3:2021

Uninterruptible power systems (UPS) - Part 3: Method of specifying the performance and test requirements

IEC 62040-3:2021 establishes the performance and test requirements applied to movable, stationary and fixed electronic uninterruptible power systems (UPS) that
- are supplied from AC voltage not exceeding 1 000 V,
- deliver AC output voltage not exceeding 1 000 V,
- incorporate an energy storage device not exceeding 1 500 V DC, and
- have a primary function to ensure continuity of load power.
This document specifies performance and test requirements of a complete UPS and, where applicable, of individual UPS functional units. This document also includes UPS performance and test requirements related to UPS switches that interact with UPS functional units to maintain continuity of load power.
This document does not cover
- conventional AC and DC distribution boards and their associated switches,
- stand-alone static transfer systems covered by IEC 62310-3,
- rotary UPS covered by IEC 88528-11, and
- DC UPS covered by IEC 62040-5-3.
This edition includes the following significant technical changes with respect to the previous edition:
1) environmental conditions aligned with IEC 62040-1:2017 (UPS safety requirements);
2) compliance requirements included in all sub-clauses referenced in Table 5 UPS test schedule;
3) non-linear step load is no longer a type test and was removed from 6.4 in consistency with requirements for switch mode power supplies incorporating inrush current controls; this resulted in the performance classification coding being shortened from 8 to 7 characters (see 5.3.4);
4) free-fall test aligned with ISO 4180 (see 6.5.1.3);
5) multiple normal mode UPS test requirements introduced;
6) non-linear load requirements relaxed in Annex E in consistency with requirements for switch mode power supplies complying with the applicable limits for harmonic current in IEC 61000-3-2 and IEC 61000-3-12;
7) minimum UPS efficiency values referenced in Annex I became normative and are based on active output power rating and utilisation of weighting factors rather than on allowances related to isolation transformers, input harmonic current filters and input voltages.

Alimentations sans interruption (ASI) - Partie 3: Méthode de spécification des performances et exigences d'essai

L'IEC 62040-3:2021 établit les exigences de performance et d'essai appliquées aux alimentations sans interruption (ASI) électroniques mobiles, stationnaires et fixes qui:
- sont alimentées par une source de tension alternative qui n'excède pas 1 000 V;
- délivrent une tension de sortie alternative qui n'excède pas 1 000 V;
- incorporent un dispositif de stockage d'énergie qui n'excède pas 1 500 V en tension continue; et
- possèdent une fonction primaire qui vise à maintenir la continuité de l'alimentation de la charge.
Le présent document spécifie les exigences de performance et d'essai relatives à une ASI complète et, le cas échéant, aux unités fonctionnelles d'ASI individuelles. Le présent document comprend également les exigences de performance et d'essai d'ASI relatives aux interrupteurs d'ASI qui interagissent avec les unités fonctionnelles d'ASI dans le but de maintenir la continuité de l'alimentation de la charge.
Le présent document ne couvre pas:
- les tableaux de répartition conventionnels à courant alternatif et à courant continu, ainsi que leurs interrupteurs associés;
- les systèmes de transfert statique autonomes qui sont couverts par l'IEC 62310-3;
- les ASI rotatives qui sont couvertes par l'IEC 88528-11; et
- les ASI à tension continue qui sont couvertes par l'IEC 62040-5-3.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
1) les conditions d'environnement ont été alignées sur l'IEC 62040-1:2017 (exigences de sécurité d'ASI);
2) des exigences de conformité ont été ajoutées à l'ensemble des paragraphes indiqués dans le Tableau 5, programme d'essais de l'ASI;
3) le transitoire de charge non linéaire n'est plus un essai de type et a été supprimé du 6.4, à des fins de cohérence avec les exigences relatives aux alimentations à découpage qui incorporent des contrôles de courant d'appel; par voie de conséquence, le codage de la classification des performances a été réduit de 8 à 7 caractères (voir 5.3.4);
4) l'essai de chute libre a été aligné sur l'ISO 4180 (voir 6.5.1.3);
5) des exigences d'essai ont été ajoutées pour les ASI à mode normal multiple;
6) les exigences de charge non linéaire fournies à l'Annexe E ont été assouplies à des fins de cohérence avec les exigences relatives aux alimentations à découpage qui satisfont aux limites d'émission de courant harmonique applicables spécifiées dans l'IEC 61000‑3‑2 et l'IEC 61000‑3‑12;
7) les valeurs de rendement minimal de l'ASI fournies à l'Annexe I sont désormais normatives et reposent sur les caractéristiques assignées de puissance active de sortie et sur l'utilisation de facteurs de pondération plutôt que sur les tolérances associées aux transformateurs d'isolement, au filtrage de courant harmonique d'entrée et aux tensions d'entrée.

General Information

• Status: Published
• Publication Date: 20-Apr-2021
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• Technical Committee: SC 22H - Uninterruptible power systems (UPS)
• Drafting Committee: MT 62040-3 - TC 22/SC 22H/MT 62040-3
• Current Stage: PPUB - Publication issued
• Start Date: 07-May-2021
• Completion Date: 21-Apr-2021

Relations

• Revises: IEC 62040-3:2011 - Uninterruptible power systems (UPS) - Part 3: Method of specifying the performance and test requirements
• Effective Date: 05-Sep-2023
• Revises: IEC 62040-3:2011/COR1:2011 - Corrigendum 1 - Uninterruptible power systems (UPS) - Part 3: Method of specifying the performance and test requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62040-3 ®
Edition 3.0 2021-04
INTERNATIONAL
STANDARD
colour
inside
Uninterruptible power systems (UPS) –
Part 3: Method of specifying the performance and test requirements
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 62040-3 ®
Edition 3.0 2021-04
INTERNATIONAL
STANDARD
colour
inside
Uninterruptible power systems (UPS) –

Part 3: Method of specifying the performance and test requirements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.200 ISBN 978-2-8322-9670-7

– 2 – IEC 62040-3:2021 © IEC 2021
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 10
3.1 General . 10
3.2 Systems and components . 11
3.3 Performance of systems and components . 15
3.4 Equipment mobility. 18
3.5 Specified values. 18
4 Environmental conditions . 25
4.1 General – Test environment . 25
4.2 Normal conditions . 25
4.2.1 General . 25
4.2.2 Operation . 26
4.2.3 Storage and transportation . 26
4.3 Unusual conditions. 26
4.3.1 General . 26
4.3.2 Operation . 26
4.3.3 Storage and transportation . 27
5 Electrical conditions, performance and declared values . 28
5.1 General . 28
5.1.1 UPS configuration . 28
5.1.2 Markings and instructions . 28
5.2 UPS input specification . 28
5.2.1 Conditions for normal mode operation . 28
5.2.2 Characteristics to be declared by the manufacturer . 29
5.2.3 Characteristics and conditions to be identified by the purchaser . 30
5.3 UPS output specification . 30
5.3.1 Conditions for the UPS to supply a load . 30
5.3.2 Characteristics to be declared by the manufacturer . 31
5.3.3 Characteristics and conditions to be identified by the purchaser . 32
5.3.4 Performance classification . 32
5.4 Energy storage device specification . 37
5.4.1 General . 37
5.4.2 Battery . 37
5.5 UPS switch specification . 38
5.5.1 UPS switches supplied as an integral part of a UPS . 38
5.5.2 UPS switches not supplied as an integral part of a UPS. 38
5.6 Signal, control and communication ports . 38
6 UPS tests . 38
6.1 Summary . 38
6.1.1 Venue, instrumentation and load . 38
6.1.2 Routine testing . 39
6.1.3 Site testing . 39
6.1.4 Witness testing . 39
6.1.5 Type testing . 39

6.1.6 Schedule of tests . 40
6.2 Routine tests. 41
6.2.1 General . 41
6.2.2 Electrical . 41
6.3 Site tests . 43
6.4 Type tests – Electrical . 44
6.4.1 Input – AC input power compatibility . 44
6.4.2 Output – Load compatibility . 47
6.4.3 Stored and restored energy times . 52
6.5 Type tests – Environmental . 53
6.5.1 Transportation . 53
6.5.2 Storage in dry heat, damp heat and cold environments . 55
6.5.3 Operation in dry heat, damp heat and cold environments . 55
6.5.4 Acoustic noise . 56
6.6 UPS functional unit tests (where not tested as a complete UPS) . 56
6.6.1 General . 56
6.6.2 UPS rectifier tests . 57
6.6.3 UPS inverter tests . 57
6.6.4 UPS switch tests. 57
6.6.5 Energy storage device tests . 57
Annex A (informative) Configurations – Uninterruptible power system (UPS) . 58
A.1 General . 58
A.2 Single output bus UPS . 58
A.2.1 General . 58
A.2.2 Basic single UPS . 58
A.2.3 Single UPS with bypass . 59
A.3 Parallel UPS . 59
A.3.1 General . 59
A.3.2 Parallel UPS with common bypass . 60
A.3.3 Parallel UPS with distributed bypass . 60
A.3.4 Standby redundant UPS . 61
A.4 Dual bus UPS . 62
A.4.1 Basic dual bus UPS . 62
A.4.2 Standby redundant dual bus UPS . 63
Annex B (informative) Topologies – Uninterruptible power system (UPS) . 64
B.1 General . 64
B.2 Double conversion topology . 64
B.3 Line-interactive topology . 65
B.4 Standby topology . 65
Annex C (informative) Switch applications – Uninterruptible power systems (UPS) . 67
C.1 General . 67
C.2 Transfer switches, bypass transfer switches . 67
C.3 Maintenance bypass switches . 67
Annex D (informative) Purchaser specification guidelines . 69
D.1 General . 69
D.2 Load to be supplied by the UPS . 69
D.3 Energy storage device (battery – where applicable) . 70
D.4 Physical and environmental requirements . 70

– 4 – IEC 62040-3:2021 © IEC 2021
D.5 UPS technical data sheet – Manufacturer's declaration . 71
Annex E (normative) Reference non-linear load . 77
E.1 General . 77
E.2 Apparent power rating
...

IEC 62040-3 ®
Edition 3.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Uninterruptible power systems (UPS) –
Part 3: Method of specifying the performance and test requirements

Alimentations sans interruption (ASI) –
Partie 3: Méthode de spécification des performances et exigences d'essai

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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About the IEC
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International Standards for all electrical, electronic and related technologies.

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latest edition, a corrigendum or an amendment might have been published.

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IEC 62040-3 ®
Edition 3.0 2021-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Uninterruptible power systems (UPS) –

Part 3: Method of specifying the performance and test requirements

Alimentations sans interruption (ASI) –

Partie 3: Méthode de spécification des performances et exigences d'essai

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200 ISBN 978-2-8322-1024-8

– 2 – IEC 62040-3:2021 © IEC 2021
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 10
3.1 General . 10
3.2 Systems and components . 11
3.3 Performance of systems and components . 15
3.4 Equipment mobility. 18
3.5 Specified values. 18
4 Environmental conditions . 25
4.1 General – Test environment . 25
4.2 Normal conditions . 25
4.2.1 General . 25
4.2.2 Operation . 26
4.2.3 Storage and transportation . 26
4.3 Unusual conditions. 26
4.3.1 General . 26
4.3.2 Operation . 26
4.3.3 Storage and transportation . 27
5 Electrical conditions, performance and declared values . 28
5.1 General . 28
5.1.1 UPS configuration . 28
5.1.2 Markings and instructions . 28
5.2 UPS input specification . 28
5.2.1 Conditions for normal mode operation . 28
5.2.2 Characteristics to be declared by the manufacturer . 29
5.2.3 Characteristics and conditions to be identified by the purchaser . 30
5.3 UPS output specification . 30
5.3.1 Conditions for the UPS to supply a load . 30
5.3.2 Characteristics to be declared by the manufacturer . 31
5.3.3 Characteristics and conditions to be identified by the purchaser . 32
5.3.4 Performance classification . 32
5.4 Energy storage device specification . 37
5.4.1 General . 37
5.4.2 Battery . 37
5.5 UPS switch specification . 38
5.5.1 UPS switches supplied as an integral part of a UPS . 38
5.5.2 UPS switches not supplied as an integral part of a UPS. 38
5.6 Signal, control and communication ports . 38
6 UPS tests . 38
6.1 Summary . 38
6.1.1 Venue, instrumentation and load . 38
6.1.2 Routine testing . 39
6.1.3 Site testing . 39
6.1.4 Witness testing . 39
6.1.5 Type testing . 39

6.1.6 Schedule of tests . 40
6.2 Routine tests. 41
6.2.1 General . 41
6.2.2 Electrical . 41
6.3 Site tests . 43
6.4 Type tests – Electrical . 44
6.4.1 Input – AC input power compatibility . 44
6.4.2 Output – Load compatibility . 47
6.4.3 Stored and restored energy times . 52
6.5 Type tests – Environmental . 53
6.5.1 Transportation . 53
6.5.2 Storage in dry heat, damp heat and cold environments . 55
6.5.3 Operation in dry heat, damp heat and cold environments . 55
6.5.4 Acoustic noise . 56
6.6 UPS functional unit tests (where not tested as a complete UPS) . 56
6.6.1 General . 56
6.6.2 UPS rectifier tests . 57
6.6.3 UPS inverter tests . 57
6.6.4 UPS switch tests. 57
6.6.5 Energy storage device tests . 57
Annex A (informative) Configurations – Uninterruptible power system (UPS) . 58
A.1 General . 58
A.2 Single output bus UPS . 58
A.2.1 General . 58
A.2.2 Basic single UPS . 58
A.2.3 Single UPS with bypass . 59
A.3 Parallel UPS . 59
A.3.1 General . 59
...