IEC 88528-11:2004

Reciprocating internal combustion engine driven alternating current generating sets - Part 11: Rotary uninterruptible power systems - Performance requirements and test methods

Specifies criteria, including performance and test methods, for rotary uninterruptible power systems arising out of a combination of mechanical and electrical rotating machines. Applies to power supplies primarily designed for supplying uninterrupted a.c. power to the consumer.

General Information

• Status: Published
• Publication Date: 22-Mar-2004
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.160.01 - Rotating machinery in general
• Technical Committee: TC 2 - Rotating machinery
• Drafting Committee: JWG 1 - TC 2/JWG 1
• Current Stage: PPUB - Publication issued
• Start Date: 15-Mar-2004
• Completion Date: 23-Mar-2004

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 88528-11
First edition
2004-03
Reciprocating internal combustion engine driven
alternating current generating sets –
Part 11:
Rotary uninterruptible power systems –
Performance requirements and test methods
Reference number
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INTERNATIONAL IEC
STANDARD 88528-11
First edition
2004-03
Reciprocating internal combustion engine driven
alternating current generating sets –
Part 11:
Rotary uninterruptible power systems –
Performance requirements and test methods
 IEC 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
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– 2 – 88528-11  IEC:2004(E)
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CONTENTS
FOREWORD.5

1 Scope.7
2 Normative references.7
3 Terms and definitions .8
3.1 General.8
3.2 Performance of systems and components .9
3.3 Specified values.10
3.4 Input values.11
3.5 Output values.12
4 Symbols and abbreviations.12
5 Selection criteria.12
6 General description.13
6.1 Rotary UPS.13
6.2 Types of rotary UPS .13
6.2.1 Series connected rotary UPS.13
6.2.2 Line interactive rotary UPS .14
6.3 Parallel operation of a rotary UPS installation.15
6.3.1 General.15
6.3.2 Parallel operation.15
6.3.3 Redundant operation.15
6.4 Power system changeover with rotary UPS installations (bypass).16
6.5 Enclosure protection.16
7 Modes of operation.16
7.1 Power conditioning mode .17
7.2 Independent mode.17
7.3 Bypass mode.18
7.4 Off mode.18
7.5 Transitions.18
7.5.1 Transition 1, starting the system with mains voltage present.18
7.5.2 Transition 2, start-up without mains voltage (black start) .18
7.5.3 Transition 3, disconnect from grid.19
7.5.4 Transition 4, connect to grid .19
7.5.5 Transition 6, transfer.19
7.5.6 Transition 7, 8, retransfer .19
8 Service conditions .19
8.1 Normal service conditions .19
8.2 Operation at extended ambient.19
8.2.1 Ambient service temperature.19
8.2.2 Ambient storage and transportation conditions .19
8.3 Engines.20
8.4 Rotating electrical machines.20
8.5 Control logic.20

88528-11  IEC:2004(E) – 3 –
9 Electrical service conditions and performance .20
9.1 General – all rotary UPS.20
9.2 Performance.21
10 Manufacturer technical declarations .22
10.1 General.22
10.2 Purchaser specification guidelines.22
10.2.1 Type of rotary UPS, additional features, and system requirements .23
10.2.2 Rotary UPS input.23
10.2.3 Load to be supplied from a rotary UPS .23
10.2.4 Rotary UPS output.24
10.2.5 Battery (where applicable) .24
10.2.6 General application requirements and special service conditions.25
10.2.7 Multi-module system configurations .25
10.2.8 Electromagnetic compatibility.26
11 Testing.27
11.1 Static output voltage and frequency deviations.27
11.2 Dynamic output voltage and frequency deviations .28
11.3 Input current characteristics .28
11.4 Measurement of filter properties .28
11.4.1 From mains to output.28
11.4.2 From output to mains.30
11.5 System performance.30
11.5.1 Efficiency.30
11.5.2 Stored energy times .30
11.5.3 Multi-module rotary UPS performance .30
11.6 Black start test.31
11.7 Environmental tests.31
11.8 Audible noise.31
11.9 Testing.31
12 Maintenance and product marking .33
12.1 Nameplate markings.33
12.2 Label requirements.34
12.3 Name plate marker.34
12.4 Decals – labelling .35
12.4.1 Safety instructions and documentation .35
12.5 Maintenance.35

Annex A (informative) Typical energy storage devices .36
Annex B (normative) Reference non-linear load – Single-phase.40
Annex C (normative) Reference non-linear load – Three-phase .42
Annex D (normative) Input mains failure – Test method .43
Annex E (informative) Types of uninterruptible power systems (UPS) configurations .44

Figure 1 – Types of UPS systems .13
Figure 2 – Typical example series connected rotary UPS.13
Figure 3 – Typical example of a line interactive rotary UPS.14
Figure 4 – Parallel operation of a rotary UPS .15

– 4 – 88528-11  IEC:2004(E)
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Figure 5 – Bypass operation .16
Figure 6 – Illustration of rotary UPS operation .17
Figure 7 – Operating modes.18
Figure 8 – Surge test .29
Figure 9 – Warning label.34
Figure A.1 – Dual conversion – direct-coupled flywheel .37
Figure A.2 – Line interactive – direct-coupled flywheel.37
Figure A.3 – Dual conversion – indirect coupled flywheel.37
Figure A.4 – Line interactive – indirect coupled flywheel .38
Figure A.5 – Double fed a.c. machine .38
Figure A.6 – Dual conversion with battery.38
Figure A.7 – Line interactive with battery .39
Figure B.1 – Single-phase non-linear load .
...