1、 IEC 62310-3 Edition 1.0 2008-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Static transfer systems (STS) Part 3: Method for specifying performance and test requirements Systmes de transfert statique (STS) Partie 3: Mthode de spcification des performances et exigences dessai IEC 62310-3:2008 THIS P
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16、 contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62310-3 Edition 1.0 2008-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Static transfer systems (STS) Part 3: Method for specifying performance and test requirements Systmes de transfert statique (STS) Partie 3: Mthode
17、 de spcification des performances et exigences dessai INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 29.200; 29.240.30 PRICE CODE CODE PRIX ISBN 2-8318-9812-9 2 62310-3 IEC:2008 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references .6 3 Terms and definitio
18、ns .7 3.1 General definitions 7 3.2 Specified values10 3.3 Input values.11 3.4 Output values11 4 Performance requirements .12 4.1 Declared electrical characteristics .12 4.1.1 Performance classification.12 4.1.2 Main electrical characteristics13 4.2 Normal service conditions .14 4.3 Transfer charact
19、eristics.14 4.3.1 Load voltage14 4.3.2 Cross-current 15 4.4 Neutral management .15 4.4.1 Common neutral 15 4.4.2 Separately derived neutrals .15 4.4.3 Neutral current 15 4.4.4 Protective earth current .15 4.5 Performance requirements to be identified by the purchaser .16 5 STS tests .16 5.1 General
20、.16 5.1.1 Type tests .16 5.1.2 Routine tests .16 5.1.3 Site tests .16 5.1.4 Testing schedule .16 5.2 Electrical tests.18 5.2.1 Insulation and dielectric.18 5.2.2 Light load and functional test.18 5.2.3 No load19 5.2.4 Rated load.19 5.2.5 Transfer.19 5.2.6 Source tolerance .21 5.2.7 Overload and faul
21、t current .21 5.2.8 Operating losses .23 5.2.9 Backfeed .24 5.2.10 Abnormal operating conditions 25 5.3 Transportation and environment 26 5.3.1 General .26 5.3.2 Impact and shock 26 5.3.3 Free fall.26 5.3.4 Storage .27 5.3.5 Temperature and humidity .28 5.3.6 Acoustic noise .28 62310-3 IEC:2008 3 An
22、nex A (normative) Reference load29 Annex B (normative) STS voltage sensing tolerance33 Annex C (informative) Neutral management in static transfer systems .35 Annex D (normative) Neutral switching in static transfer systems Additional requirements.37 Annex E (informative) Purchaser specification gui
23、delines 39 Annex F (informative) Output short circuit test procedure.43 Annex G (normative) Backfeed protection test .47 Annex H (normative) Minimum and maximum cross-sections of copper conductors suitable for connection48 Bibliography49 Figure 1 Complying load current flow - Common grounding of a.c
24、. input sources - common STS neutral 15 Figure 2 Objectionable load current flow - Independent grounding of a.c. input sources - common STS neutral .16 Figure 3 STS cross current test20 Figure 4 Typical circuit for measuring conduction losses24 Figure B.1 Source tolerance classification 1.33 Figure
25、B.2 Source tolerance classification 2.34 Figure B.3 Source tolerance classification 3.34 Figure B.4 Source tolerance classification 4.34 Figure C.1 Continuous STS neutral with common grounding of a.c. input sources (complying load current flow) 35 Figure C.2 Continuous STS neutral with independent g
26、rounding of a.c. input sources + isolation transformer (complying load current flow) 36 Figure C.3 Switched STS with independent grounding of a.c. input sources (complying steady state load current flow) 36 Figure D.1 Load voltage variation upon neutral switch failure.37 Figure D.2 Overlapping switc
27、hed STS neutral 38 Figure F.1 Test circuit for STS output withstand current.45 Table 1 Transfer interruption classification “T” .13 Table 2 Tests for STS performance characteristics 17 Table 3 Short time withstand current22 Table 4 Free fall testing .27 Table E.1 STS technical data sheet .41 Table F
28、.1 Values of power-factors and time-constants corresponding to test currents and ratio n between peak and r.m.s. values of current 44 Table H.1 Minimum and maximum cross-sections of copper conductors suitable for connection (extract from IEC 60439-1)48 4 62310-3 IEC:2008 INTERNATIONAL ELECTROTECHNIC
29、AL COMMISSION _ STATIC TRANSFER SYSTEMS (STS) Part 3: Method for specifying performance and test requirements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees).
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39、ility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62310-3 has been prepared by subcommittee 22H: Uninterruptible power systems (UPS), of IEC technica
40、l committee 22: Power electronic systems and equipment. The text of this standard is based on the following documents: FDIS Report on voting 22H/105/FDIS 22H/107/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. Th
41、is publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 62310 series, under the general title: Static transfer systems (STS), can be found on the IEC website. 62310-3 IEC:2008 5 The committee has decided that the contents of this publication
42、will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 62310-3 IEC:2008 STATIC TRAN
43、SFER SYSTEMS (STS) Part 3: Method for specifying performance and test requirements 1 Scope The IEC 62310 series of three standards applies to stand-alone operating a.c. static transfer systems (STS) intended to ensure the continuity of load supply through controlled transfer, with or without interru
44、ption of power, from two or more independent a.c. sources. This series of standards includes information for the overall integration of the STS and its accessories into the a.c. power network and includes requirements for the switching elements, their control and protective elements, where applicabl
45、e. Part 1 of the series concerns general and safety requirements. Part 2 of the series concerns electromagnetic compatibility (EMC) requirements. This Part 3 of the series concerns methods for specifying performance and test requirements including applicable safety tests referenced in standard IEC 6
46、2310-1 for general and safety requirements. This standard applies for single-phase, phase-phase and three-phase static transfers in a. c. systems up to 1 000 V. It takes precedence over all aspects of generic performance standards, and no additional performance testing is necessary. The requirements
47、 have been selected so as to be consistent with compatibility levels for low- frequency conducted disturbances and signalling in public low-voltage power supply systems (see IEC 61000-2-2) as well as to ensure an adequate level of performance when the STS is applied in diverse critical load situatio
48、ns. The requirements take into account the differing test conditions necessary to encompass the range of physical sizes and power ratings of STS. This standard applies to STS as a stand-alone product, whether presented as a unit or an assembly of units. This standard does not apply to: devices for d
49、.c. source switching; single source systems; transfer systems using only electromechanical switching devices with interruption of the supply to the load during transfer and intended to be used in emergency power systems or covered by IEC 60947-6-1; automatic switching devices integrated into UPS covered by the IEC 62040 series of UPS product standards. NOTE Additional or different req
