1、 IEC 61869-5 Edition 1.0 2011-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Instrument transformers Part 5: Additional requirements for capacitor voltage transformers Transformateurs de mesure Partie 5: Exigences supplmentaires concernant les transformateurs condensateurs de tension IEC 61869-5:201
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16、ients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61869-5 Edition 1.0 2011-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Instrument transformers Part 5: Additional requirements for capacitor voltage transformers Transformateurs de mesure Partie 5: Exigences s
17、upplmentaires concernant les transformateurs condensateurs de tension INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 17.220.20 PRICE CODE CODE PRIX ISBN 978-2-88912-543-2 Registered trademark of the International Electrotechnical Commission Marque dpose d
18、e la Commission Electrotechnique Internationale 2 61869-5 IEC:2011 CONTENTS FOREWORD . 5 1 Scope . 8 2 Normative references . 8 3 Terms and Definitions . 8 3.1 General definitions .9 3.2 Definitions related to dielectric ratings and voltages . 14 3.4 Definitions related to accuracy 14 3.5 Definition
19、s related to other ratings 14 3.7 Index of abbreviations . 15 5 Ratings . 15 5.3 Rated insulation levels 16 5.3.3 Other requirements for primary terminals insulation . 16 5.3.5 Insulation requirements for secondary terminals. 17 5.3.501 Electromagnetic unit insulation requirements 17 5.4 Rated frequ
20、ency 17 5.5 Rated output 17 5.5.501 Rated output values . 17 5.5.502 Rated thermal limiting output . 18 5.5.503 Rated output values for residual voltage windings 18 5.5.504 Rated thermal limiting output for residual voltage windings 18 5.6 Rated accuracy class 18 5.6.501 Accuracy requirements for me
21、asuring capacitor voltage transformer . 18 5.6.502 Accuracy requirements for protective capacitor voltage transformers 19 5.501 Standard values of rated voltages 20 5.501.1 Rated primary voltages U Pr. 20 5.501.2 Rated secondary voltages . 20 5.501.3 Rated voltages for secondary winding intended to
22、produce a residual voltage . 21 5.501.4 Standard values of rated voltage factor . 21 6 Design and construction . 22 6.1 Requirements for liquids used in equipment . 22 6.1.4 Liquid tightness 22 6.7 Mechanical requirements 22 6.8 Multiple chopped impulse on primary terminals 22 6.9 Internal arc fault
23、 protection requirements . 22 6.13 Markings 22 6.13.501 Terminal markings . 22 6.13.502 Rating plate markings 23 6.501 Short circuit withstand capability . 27 6.502 Ferro-resonance 27 6.502.1 General 27 6.502.2 Transients of ferro-resonance oscillations . 27 6.503 Transient response . 28 6.503.1 Gen
24、eral 28 6.503.2 Requirements for transient response 28 6.503.3 Standard transient response classes 28 61869-5 IEC:2011 3 6.504 Requirements for carrier frequency accessories . 29 6.504.1 General 29 6.504.2 Drain coil 29 6.504.3 Voltage limitation device 29 7 Tests 30 7.1 General . 30 7.1.2 List of t
25、ests. 30 7.1.3 Sequence of tests 31 7.2 Type tests 33 7.2.2 Temperature-rise test 33 7.2.3 Impulse voltage withstand test on primary terminals. 34 7.2.4 Wet test for outdoor type transformers 35 7.2.6 Test for accuracy . 35 7.2.8 Enclosure tightness test at ambient temperature 37 7.2.501 Capacitance
26、 and tan measurement at power-frequency . 37 7.2.502 Short-circuit withstand capability test 38 7.2.503 Ferro-resonance tests . 39 7.2.504 Transient response test . 39 7.2.505 Type test for carrier frequency accessories 41 7.3 Routine tests . 42 7.3.1 Power-frequency voltage withstand tests on prima
27、ry terminals 42 7.3.2 Partial discharge measurement . 44 7.3.5 Test for accuracy . 44 7.3.7 Enclosure tightness test at ambient temperature 46 7.3.8 Pressure test for the enclosure 46 7.3.501 Ferro-resonance check 46 7.3.502 Routine tests for carrier frequency accessories 46 7.4 Special tests 47 7.4
28、.1 Chopped impulse voltage withstand test on primary terminals . 47 7.4.2 Multiple chopped impulse test on primary terminals . 47 7.4.3 Measurement of capacitance and dielectric dissipation factor 47 7.4.6 Internal arc fault test 47 7.4.501 Determination of the temperature coefficient (TC) 47 7.4.50
29、2 Tightness design test of capacitor units 47 Annex 5A (normative) Typical diagrammeme of a capacitor voltage transformer 49 Annex 5B (informative) Transient response of capacitor voltage transformer under fault conditions . 50 Annex 5C (normative) High-frequency characteristics of capacitor voltage
30、 transformers . 51 Bibliography 52 Figure 501 Error diagram of a capacitor voltage transformer for accuracy classes 0,2, 0,5 and 1,0 19 Figure 502 Capacitor voltage transformer with a single secondary . 23 Figure 503 Capacitor voltage transformer with two secondaries . 23 Figure 504 Capacitor voltag
31、e transformer with two tapped secondaries . 23 Figure 505 Capacitor voltage transformer with one residual voltage winding and a single secondary . 23 4 61869-5 IEC:2011 Figure 506 Example of a typical rating plate . 26 Figure 507 Transient response of a capacitor voltage transformer . 28 Figure 508
32、Flow charts test sequence to be applied when performing type test (Figure 508a) and routine test (Figure 508b) . 32 Figure 509 Diagram of a capacitor voltage transformer for the transient response test using equivalent circuit method . 40 Figure 510 Series burden . 41 Figure 511 Pure resistance 41 F
33、igure 512 Example of an error diagramme of class 1 CVT for accuracy check with the equivalent circuit . 45 Figure 5A.1 Example of a diagram for a capacitor voltage transformer . 49 Figure 5A.2 Example of a diagram for a capacitor voltage transformer with carrier- frequency accessories 49 Table 501 L
34、imits of voltage error and phase displacement for measuring capacitor voltage transformers . 19 Table 502 Limits of voltage error and phase displacement for protective capacitor voltage transformers . 20 Table 503 Rated secondary voltages for capacitor voltage transformers to produce a residual volt
35、age 21 Table 504 Standard values of rated voltage factors for accuracy and thermal requirements . 21 Table 505 Marking of the rating plate . 23 Table 506a Ferro-resonance requirements . 27 Table 506b Ferro-resonance requirements . 28 Table 507 Standard transient response values and classes . 29 Tabl
36、e 10 List of tests . 31 Table 508 Test voltage for temperature rise test 34 Table 509 Burden ranges for accuracy tests . 36 Table 510 Test voltages for units, stacks and complete capacitor voltage divider . 43 Table 511 Accuracy check points (example) 45 Table 512 Ferro resonance check 46 61869-5 IE
37、C:2011 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INSTRUMENT TRANSFORMERS Part 5: Additional requirements for capacitor voltage transformers FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical com
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48、h patent rights. This International Standard IEC 61869-5 specific clauses for capacitor voltage transformers has been prepared by IEC technical committee 38: Instrument transformers. This standard replaces IEC 60044-5 regarding capacitor voltage transformers as well as IEC- PAS 60044-5 for capacitor
49、 voltage transformers. 6 61869-5 IEC:2011 The text of this standard is based on the following documents: FDIS Report on voting 38/411/FDIS 38/414/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. This standard is Part 5 of IEC
