1、 IEC 60143-2 Edition 2.0 2012-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Series capacitors for power systems Part 2: Protective equipment for series capacitor banks Condensateurs srie destins tre installs sur des rseaux Partie 2: Matriel de protection pour les batteries de condensateurs srie IEC
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16、 INTERNATIONAL STANDARD NORME INTERNATIONALE Series capacitors for power systems Part 2: Protective equipment for series capacitor banks Condensateurs srie destins tre installs sur des rseaux Partie 2: Matriel de protection pour les batteries de condensateurs srie INTERNATIONAL ELECTROTECHNICAL COMM
17、ISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 29.240.99; 31.060.70 PRICE CODE CODE PRIX ISBN 978-2-83220-546-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publ
18、ication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colourinside 2 60143-2 IEC:2012 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative references . 7 3 Terms and definitions . 9 4 Quality requirements and tests . 15 4.1
19、Overvoltage protector 15 4.2 Protective spark gap 16 4.2.1 Purpose . 16 4.2.2 Classification of triggering principles . 16 4.2.3 Tests . 16 4.3 Varistor . 21 4.3.1 Purpose . 21 4.3.2 Classification . 21 4.3.3 Tests . 22 4.4 Bypass switch . 26 4.5 Disconnectors and earthing switches . 26 4.5.1 Purpos
20、e . 26 4.5.2 Classification . 27 4.5.3 Tests . 27 4.6 Discharge current-limiting and damping equipment (DCLDE) . 28 4.6.1 Purpose . 28 4.6.2 Classification . 28 4.6.3 Tests . 28 4.7 Voltage transformer . 32 4.7.1 Purpose . 32 4.7.2 Classification . 32 4.7.3 Tests . 32 4.8 Current sensors . 33 4.8.1
21、Purpose . 33 4.8.2 Classification . 33 4.8.3 Current transformer tests . 33 4.8.4 Electronic transformer tests . 33 4.8.5 Optical transducer tests . 33 4.9 Coupling capacitor. 34 4.9.1 Purpose . 34 4.9.2 Tests . 34 4.10 Signal column 34 4.10.1 Purpose . 34 4.10.2 Tests . 34 4.11 Fibre optical platfo
22、rm links . 34 4.11.1 Purpose . 34 4.11.2 Tests . 35 4.12 Relay protection, control equipment and platform-to-ground communication equipment . 35 4.12.1 Purpose . 35 4.12.2 Classification . 35 60143-2 IEC:2012 3 4.12.3 Tests . 35 5 Guide . 36 5.1 General . 36 5.2 Specification data for series capacit
23、ors . 36 5.3 Protective spark gap 37 5.4 Varistor . 38 5.4.1 General . 38 5.4.2 Varistor voltage-current characteristic . 39 5.4.3 Varistor current and voltage waveforms during a system fault 40 5.4.4 Comments on varistor definitions and type tests 41 5.5 Bypass switch . 44 5.6 Disconnectors . 44 5.
24、7 Discharge current-limiting and damping equipment 44 5.7.1 Purpose of the Discharge Current-Limiting and Damping Equipment . 44 5.7.2 Location of the DCLDE 45 5.7.3 Configuration of the DCLDE. 47 5.7.4 Miscellaneous comments regarding the DCLDE . 48 5.8 Voltage transformer . 49 5.9 Current transfor
25、mer . 49 5.10 Relay protection, control equipment and platform-to-ground communication equipment . 49 5.11 Protection redundancy . 51 5.12 Commissioning tests . 52 5.13 Energization tests 52 Bibliography 54 Figure 1 Typical nomenclature of a series capacitor installation . 7 Figure 2 Classification
26、of overvoltage protection 16 Figure 3 Illustration of waveforms in recovery voltage test . 19 Figure 4 Typical voltage-current characteristics of one specific metal oxide varistor element (95 mm diameter) 40 Figure 5 Current, voltage and energy waveforms for a phase-to-earth fault 41 Figure 6 Conven
27、tional location in the bypass branch 45 Figure 7 DCLDE in series with the capacitor and the parallel connected MOV 45 Figure 8 DCLDE in series with the capacitor and parallel to the MOV . 45 Figure 9 Only a discharge current-limiting reactor 47 Figure 10 Discharge current-limiting reactor connected
28、in parallel with a damping resistor. A varistor is connected in series with the resistor 47 Figure 11 Discharge current-limiting reactor connected in parallel with a damping resistor. A small spark gap is connected in series with the resistor . 47 Figure 12 Current-limiting and damping equipment wit
29、h and without damping resistor 48 Table 1 Summary of varistor energy absorption design criteria (example) . 38 Table 2 Overview of typical series capacitor bank protections 51 4 60143-2 IEC:2012 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SERIES CAPACITORS FOR POWER SYSTEMS Part 2: Protective equipm
30、ent for series capacitor banks FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions co
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39、enses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Att
40、ention is drawn to the possibility 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 60143-2 has been prepared by IEC technical committee 33: Power capacit
41、ors and their applications. This second edition cancels and replaces the first edition published in 1994. It constitutes a technical revision. The main changes with respect to the previous edition are: updated with respect to new and revised component standards; updates with respect to technology ch
42、anges. Outdated technologies have been removed, i.e. series capacitors with dual self-triggered gaps. New technologies have been added, i.e. current sensors instead of current transformers; the testing of spark gaps has been updated to more clearly specify requirements and testing procedures. A new
43、bypass making current test replaces the old discharge current test; Clause 5, Guide, has been expanded with more information about different damping circuits and series capacitor protections 60143-2 IEC:2012 5 The text of this standard is based on the following documents: FDIS Report on voting 33/51
44、7/FDIS 33/521/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. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all the parts in the IEC 60143 series, under the genera
45、l title Series capacitors for power systems, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At
46、 this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users shou
47、ld therefore print this document using a colour printer. 6 60143-2 IEC:2012 SERIES CAPACITORS FOR POWER SYSTEMS Part 2: Protective equipment for series capacitor banks 1 Scope This part of IEC 60143 covers protective equipment for series capacitor banks, with a size larger than 10 Mvar per phase. Pr
48、otective equipment is defined as the main circuit apparatus and ancillary equipment, which are part of a series capacitor installation, but which are external to the capacitor part itself. The recommendations for the capacitor part are given in IEC 60143-1:2004. The protective equipment is mentioned
49、 in Clause 3 and 10.6 of IEC 60143-1:2004. The protective equipment, treated in this standard, comprises the following items listed below: overvoltage protector, protective spark gap, varistor, bypass switch, disconnectors and earthing switches, discharge current-limiting and damping equipment, voltage transformer, current sensors, coupling capacitor, signal column, fibre optical p
