IEC_62271_2.pdf

NORMECEIINTERNATIONALEIECINTERNATIONAL62271-100STANDARDEdition 1.12003-05Edition 1:2001 consolidee par Iamendement 1:2002Edition 1:2001 consolidated with amendment 1:2002Appareillage a haute tensionPartie 100:Disjoncteurs a courant alternatif a haute tensionHigh-voltage switchgear and controlgearPart 100:High-voltage alternating-current circuit-breakersIEC 2003 Droits de reproduction reserves-Copyright-all rights reservedNo part of this publication may be reproduced or utilized in anyutilisee sous quelque forme que ce soit et par aucun procede,form or by any means,electronic or mechanical.includingelectronique ou mecanique,y compris la photocopie et lesphotocopying and microfilm,without permission in writing frommicrofilms,sans Iaccord ecrit de lditeur.the publisher.Intemational Electrotechnical Commission,3,rue de Varembe,PO Box 131,CH-1211 Geneva 20.SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22919 03 00 E-mail:inmailiec.ch Web:www.iec.chCODE PRIXCommission Electrotechnique InternationalePRICE CODEXLInternational Electrotechnical CommissionMexnyHapogHan 3neKTpoTexHnueckan KoMMCCHFour prix,volr catalogue en vigueurFor price,see current calalogue62271-100IEC:2001+A1:2002-3-CONTENTSFOREWORD.171 General.211.1 Scope.211.2 Normative references.212 Normal and special service conditions.253Definition.253.1 General terms.253.2 Assemblies.313.3Parts of assemblies.313.4Switching devices.313.5Parts of circuit-breakers.353.6Operation.303.7 Characteristic quantities433.8 Index of definitions.554.63门gS.4.1 Rated voltage.654.2Rated insulation level.654.3 Rated frequency.654.4Rated normal current(and temperature rise.674.5 Rated short-time withstand current().674.6 Rated peak withstand current(p.674.7Rated duration of short circuit(fk).674.8 Rated supply voltage of closing and opening devices and of auxiliary andcontrol circuits(a).674.9 Rated supply frequency of closing and opening devices and auxiliary circuits.674.10 Rated pressures of compressed gas supply for insulation,operation and/orinterruption.675 Design and construction.155.1 Requirements for liquids in circuit-breakers.1055.2 Requirements for gases in circuit-breakers.1055.3Earthing of circuit-breakers.1055.4 Auxiliary equipment.1055.5Dependent power closing.1075.6Stored energy closing.1075.7Independent manual operation.1095.8 Operation of releases.1095.9 Low-and high-pressure interlocking devices.1115.10 Nameplates.115.11 Interlocking devices.1155.12 Position indication.155.13 Degrees of protection by enclosures.11562271-1001EC:2001+A1:2002-55.14 Creepage distances.144844414155.15 Gas and vacuum tightness.1155.16 Liquid tightness.1155.17 Flammability.1155.18 Electromagnetic compatibility.1156 Type tests.196.1 Genera阳l.1236.2Dielectric tests.1236.3 Radio interference voltage(r.i.v.)tests.1296.4 Measurement of the resistance of the main circuit.1296.5Temperature-rise tests.1296.6Short-time withstand current and peak withstand current tests.1316.7Verification of the degree of protection.1336.8Tightness tests.1336.9Electromagnetic compatibility(EMC)tests.1336.101 Mechanical and environmental tests.1336.102 Miscellaneous provisions for making and breaking tests.1576.103 Test circuits for short-circuit making and breaking tests.1976.104 Short-circuit test quantities.1996.105 Short-circuit test procedure.2256.106 Basic short-circuit test-duties.2296.107 Critical current tests.2396.108 Single-phase and double-earth fault tests.2396.109 Short-line fault tests.2436.110 Out-of-phase making and breaking tests.2516.111 Capacitive current switching tests.2536.112 Special requirements for making and breaking testson class E2 circuit-breakers.2817Routine tests2837.1Dielectric test on the main circuit.2837.2 Dielectric test on auxiliary and control circuits.,2857.3 Measurement of the resistance of the main circuit2857.4 Tightness test.2857.5 Design and visual checks.2858Guide to the selection of circuit-breakers for service.2899 Information to be given with enquiries,tenders and orders.30710 Rules for transport,storage,installation,operation and maintenance.31310.1 Conditions during transport,storage and installation.31310.2 Instalation.31310.8 Operation.32510.4 Maintenance.32711 Safety.327Annex A(normative)Calculation of transient recovery voltages for short-line faultsfrom rated characteristics.433Annex B(normative)Tolerances on test quantities during type tests.449Annex C(normative)Records and reports of type tests.463Annex D(normative)Determination of short-circuit power factor.47162271-100IEC:2001+A1:2002-7-Annex E(normative)Method of drawing the envelope of the prospective transientrecovery voltage of a circuit and determining the representative parameters.475Annex F(normative)Methods of determining prospective transient recoveryVoltage waves.483Annex G(normative)Rationale behind introduction of circuit-breakers class E2.517Annex H(informative)Inrush currents of single and back-to-back capacitor banks.519Annex I(informative)Explanatory notes.529Annex J(informative)Test current and line length tolerances for short-line fault testing.563Annex K(informative)List of symbols and abbreviations used in IEC 62271-100.567Figure 1-Typical oscillogram of a three-phase short-circuit make-break cycle.329Figure 2-Circuit-breaker without switching resistors.Opening and closing operations.333Figure 3-Circuit breaker without switching resistors-Close-open cycle.335Figure 4-Circuit-breaker without switching resistors-Reclosing(auto-reclosing).337Figure 5-Circuit-breaker with switching resistors.Opening and closing operations.339Figure 6-Circuit-breaker with switching resistors-Close-open cycle.341Figure 7 Circuit-breaker with switching resistors Reclosing(auto-reclosing).343Figure 8-Determination of short-circuit making and breaking currents,and of percentage ponent.345Figure 9-Percentage ponent in relation to the time interval(Top+Tr)forthe standard time constant and for the special case time constants z2,73 and 74.347Figure 10-Representation of a specified four-parameter TRV and a delay line forT100,short-line fault and out-of-phase condition with a four-parameter reference line.349Figure 11 Representation of a specified TRV by a two-parameter reference lineand a delay line.351Figure 12a-Basic circuit for terminal fault with ITRV.353Figure 12b-Representation of ITRV in relationship to TRV.353Figure 13-Three-phase short-circuit representation.355Figure 14-Alternative representation of figure 13.357Figure 15-Basic short-line fault circuit.359Figure 16-Example of a line-side transient voltage with time delay and rounded crestshowing construction to derive the values u*L,t and fdL.359Figure 17-Test sequences for low and high temperature tests.361Figure 18-Humidity test.363Figure 19-Static terminal load forces.365Figure 20-Directions for static terminal load tests.367Figure 21-Permitted number of samples for making,breaking and switching tests,illustrations of the statements in 6.102.2.369Figure 22-Definition of a single test specimen in accordance with 3.2.2 of IEC 60694.371Figure 23a-Reference mechanical travel characteristics(idealised curve).373Figure 23b-Reference mechanical travel characteristics(idealised curve)with the prescribed envelopes centered over the reference curve(+5%,-5%),contact separation in this example at time=20 ms.37362271-100IEC:2001+A1:2002-9-Figure 23c-Reference mechanical travel characteristics(idealised curve)withthe prescribed envelopes fully displaced upward from the reference curve(+10%-0%),contact separation in this example at time t=20 ms.375Figure 23d-Reference mechanical travel characteristics(idealised curve)withthe prescribed envelopes fully displaced downward from the reference curve(+0%,-10%)contact separation in this example at time t=20 ms.375Figure 24-Equivalent testing set-up for unit testing of circuit-breakerswith more than one separate interrupter units.377Figure 25a-Preferred circuit.379Figure 25b-Alternative circuit.379Figure 25-Earthing of test circuits for three-phase short-circuit tests,first-pole-to-clear factor 1,5.1ggg1119gg1tt0001111111g1111111gg11ggg111gg1111g9gtt1gg81118881100011g5501gg0eegg,5Figure 26a-Preferred circuit.381Figure 26b-Alternative circuit.381Figure 26-Earthing of test circuits for three-phase short-circuit tests,first-pole-to-clear factor 1,3.381Figure 27a-Preferred circuit.383Figure 27b-Alternative circuit not applicable for circuit-breakers where the insulationbetween phases and/or to earth is critical(e.g.GIS or dead tank circuit-breakers).383Figure 27-Earthing of test circuits for single-phase short-circuit tests,first-pole-to-clear factor 15.383Figure 28a-Preferred circuit.385Figure 28b-Alternative circuit,not applicable for circuit-breakers where the insulationbetween phases and/or to earth is critical(e.g.GIS or dead tank circuit-breakers).385Figure 28-Earthing of test circuits for single-phase short-circuit tests,first-pole-to-clear factor 1,3.385Figure 29-Graphical representation of the three valid symmetrical breakingoperations for three-phase tests in a non-solidly earthed neutral system(first-pole-to-clear factor 15).387Figure 30-Graphical representation of the three valid symmetrical breakingoperations for three-phase tests in a solidly earthed neutral system(first-pole-to-clear factor 1,3).389Figure 31-Graphical representation of the three valid asymmetrical breakingoperations for three-phase tests in a non-solidly earthed neutral system(first-pole-to-clear factor 1,5).391Figure 32-Graphical representation of the three valid asymmetrical breakingoperations for three-phase tests in a solidly earthed neutral system(first-pole-to-clear factor 13).393Figure 33-Graphical representation of the three valid symmetrical breakingoperations for single-phase tests in substitution of three-phase conditionsin a non-solidly earthed neutral system(first-pole-to-clear factor 1,5).395Figure 34-Graphical representation of the three valid asymmetrical breakingoperations for single-phase tests in substitution of three-phase conditionsin a non-solidly earthed neutral system(first-pole-to-clear factor 1,5).397Figure 35-Graphical representation of the three valid symmetrical breakingoperations for single-phase tests in substitution of three-phase conditionsin a solidly earthed neutral system(first-pole-to-clear factor 1,3).399