1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21362-6 SANS 60076-6:2008 Edition 1 IEC 60076-6:2007 Edition 1SOUTH AFRICAN NATIONAL STANDARD Power transformers Part 6: Reactors This nat
4、ional standard is the identical implementation of IEC 60076-6:2007 and is adopted with the permission of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international co
5、de + 27 12 www.stansa.co.za Standards South Africa This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 60076-6:2008 Edition 1 IEC 60076-6:2007 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was a
6、pproved by National Committee StanSA SC 67E, Electricity distribution systems and components Electricity distribution, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in June 2008. This standard may only b
7、e used and printed by approved subscription and freemailing clients of the SABS. IEC 60076-6 Edition 1.0 2007-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 6: Reactors Transformateurs de puissance Partie 6: Bobines dinductance INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMIS
8、SION ELECTROTECHNIQUE INTERNATIONALE XF ICS 29.180 PRICE CODE CODE PRIX ISBN 2-8318-9507-3SANS 60076-6:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 2 60076-6 IEC:2007 CONTENTS FOREWORD.9 INTRODUCTION.11 1 Scope.12 2 Normative references
9、 .12 3 Terms and definitions .13 3.1 Types of reactor 13 3.2 Other definitions14 4 Symbols and abbreviations.17 5 Service conditions 18 5.1 General .18 5.2 Seismic conditions 18 6 Design, testing, tolerances and application.18 7 Shunt reactors20 7.1 General .20 7.2 Design.20 7.3 Terms and definition
10、s 20 7.4 Rating .21 7.4.1 Rated voltage 22 7.4.2 Maximum operating voltage.22 7.4.3 Rated power22 7.4.4 Zero-sequence reactance of a three-phase star-connected reactor22 7.4.5 Mutual reactance of a three-phase reactor.22 7.4.6 Inrush current level22 7.4.7 Linearity of the shunt reactor .22 7.5 Tempe
11、rature rise.22 7.6 Insulation level 23 7.7 Rating plates.23 7.8 Tests.23 7.8.1 General .23 7.8.2 Routine tests .23 7.8.3 Type tests .24 7.8.4 Special tests24 7.8.5 Determination of reactance and linearity of reactance24 7.8.6 Measurement of loss (routine test, special test).25 7.8.7 Measurement of h
12、armonics of the current (special test).26 7.8.8 Measurement of zero-sequence reactance on three-phase reactors (special test)27 7.8.9 Measurement of mutual reactance on three-phase reactors (special test).27 7.8.10 Dielectric tests.27 7.8.11 Measurement of magnetic characteristic (special test).30 7
13、.8.12 Measurement of acoustic sound level (type test, special test)30 7.8.13 Measurement of vibration (type test)31 7.8.14 Temperature rise test (type test)32 7.9 Tolerances 33 SANS 60076-6:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60
14、076-6 IEC:2007 3 7.9.1 General .33 7.9.2 Tolerances on reactance at rated voltage and rated frequency 33 7.9.3 Tolerances on the linearity of reactance 33 7.9.4 Tolerance on loss 33 8 Current-limiting reactors and neutral-earthing reactors .33 8.1 General .33 8.2 Design.34 8.3 Terms and definitions
15、34 8.4 Rating .36 8.4.1 Rated continuous current.36 8.4.2 Rated thermal short-circuit current.37 8.4.3 Rated thermal short-circuit current duration.37 8.4.4 Rated mechanical short-circuit current.37 8.4.5 Rated short-time current37 8.4.6 Rated short-time current duration or duty-cycle .37 8.4.7 Coup
16、ling factor 38 8.4.8 Rated short-circuit impedance .38 8.4.9 Rated short-time impedance39 8.4.10 Rated continuous impedance.39 8.5 Ability to withstand rated thermal and rated mechanical short-circuit current .39 8.6 Temperature rise.39 8.6.1 Temperature rise at rated continuous current 39 8.6.2 Tem
17、perature due to rated thermal short-circuit current and rated short-time current loading40 8.7 Insulation level 40 8.7.1 General .40 8.8 Rating plates.40 8.9 Tests.41 8.9.1 General .41 8.9.2 Routine tests .41 8.9.3 Type tests .41 8.9.4 Special tests42 8.9.5 Measurement of impedance at rated continuo
18、us current (routine test) .42 8.9.6 Measurement of impedance at rated short-time current (routine test).43 8.9.7 Measurement of loss (routine test, special test).43 8.9.8 Separate source a.c. withstand voltage test (routine test, special test).44 8.9.9 Winding overvoltage test for current-limiting r
19、eactors (routine test)44 8.9.10 Winding overvoltage test for neutral-earthing reactors (routine test) 45 8.9.11 Temperature rise test at rated continuous current (type test) .45 8.9.12 Lightning impulse test for current-limiting reactors (type test) 46 8.9.13 Short-circuit current test (special test
20、) .46 8.9.14 Measurement of acoustic sound level at rated continuous current (special test)47 8.9.15 Vibration measurement at rated continuous current (special test) 47 8.9.16 Switching impulse test (special test) 48 8.9.17 Double-ended lightning impulse test (special test) .48 8.9.18 Measurement of
21、 coupling factor (special test)49 8.9.19 Wet winding overvoltage test (special test)49 SANS 60076-6:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 4 60076-6 IEC:2007 8.9.20 Wet separate source a.c. withstand voltage test (special test) .4
22、9 8.9.21 Measurement of reactance of the winding in the case of gapped-core and magnetically-shielded air-core reactors (special test)49 8.10 Tolerances 50 8.10.1 Tolerance on impedances of reactors without compensation for mutual coupling .50 8.10.2 Tolerance on impedance of reactors with compensat
23、ion for mutual coupling.50 8.10.3 Tolerance on loss 50 9 Filter, damping and discharge reactors associated with capacitors .50 9.1 General .50 9.2 Design.51 9.3 Terms and definitions 51 9.4 Rating .53 9.4.1 Rated power frequency current53 9.4.2 Rated current spectrum .53 9.4.3 Rated inrush current54
24、 9.4.4 Rated inrush frequency54 9.4.5 Rated discharge current 54 9.4.6 Rated discharge frequency54 9.4.7 Rated thermal short-circuit current.54 9.4.8 Rated thermal short-circuit current duration.54 9.4.9 Rated mechanical short-circuit current.55 9.4.10 Rated inductance.55 9.4.11 Quality factor.55 9.
25、5 Ability to withstand rated thermal and rated mechanical short-circuit current .55 9.6 Ability to withstand inrush or discharge current56 9.7 Temperature rise.56 9.7.1 Temperature rise at equivalent current at power frequency56 9.7.2 Temperature due to rated thermal short-circuit current loading 56
26、 9.8 Insulation level 56 9.8.1 General .56 9.8.2 Insulation requirements .56 9.9 Rating plates.57 9.10 Tests.57 9.10.1 General.57 9.10.2 Routine tests.58 9.10.3 Type tests .58 9.10.4 Special tests .58 9.10.5 Measurement of inductance (routine test, type test) 58 9.10.6 Measurement of loss and qualit
27、y factor (routine test, type test) .59 9.10.7 Winding overvoltage test (routine test) 59 9.10.8 Temperature rise test at rated continuous current (type test).60 9.10.9 Lightning impulse test (type test).60 9.10.10 Short-circuit current test (special test).60 9.10.11 Measurement of acoustic sound lev
28、el at rated continuous current (special test) .61 9.10.12 Separate source a.c. withstand voltage test (special test) .62 9.10.13 Inrush current withstand test (special test) 62 9.10.14 Discharge current test (special test) 63 SANS 60076-6:2008This standard may only be used and printed by approved su
29、bscription and freemailing clients of the SABS.60076-6 IEC:2007 5 9.10.15 Modified short-circuit/discharge current test (special test) .63 9.10.16 Mechanical resonance test (special test).63 9.11 Tolerances 63 9.11.1 Tolerance on rated inductance 63 9.11.2 Tolerance on measured loss and quality fact
30、or 63 10 Earthing transformers (neutral couplers).63 10.1 General .63 10.2 Design.64 10.3 Terms and definitions 64 10.4 Rating .66 10.4.1 Rated voltage 66 10.4.2 Maximum operating voltage.66 10.4.3 Rated zero-sequence impedance.66 10.4.4 Rated continuous neutral current.66 10.4.5 Rated short-time ne
31、utral current 67 10.4.6 Rated short-time neutral current duration.67 10.4.7 Rated voltage of the secondary winding.67 10.4.8 Further ratings for the combination of an earthing transformer and an arc-suppression reactor.67 10.5 Ability to withstand the rated short-time neutral current .67 10.6 Temper
32、ature rise.68 10.6.1 Temperature rise at rated voltage, rated continuous neutral current and rated power of the secondary winding.68 10.6.2 Temperature after rated short-time neutral current loading 68 10.7 Insulation level 68 10.8 Rating plates.68 10.9 Tests.69 10.9.1 General.69 10.9.2 Routine test
33、s.69 10.9.3 Type tests .70 10.9.4 Special tests .70 10.9.5 Measurement of zero-sequence impedance (routine test)70 10.9.6 Temperature rise test (type test) .71 10.9.7 Dielectric tests (routine test, type test) 72 10.9.8 Demonstration of ability to withstand rated short-time neutral current (special
34、test) .72 10.9.9 Measurement of loss at rated continuous neutral current (special test) 73 10.9.10 Measurement of neutral current with three-phase excitation under single-phase fault condition (type test) 73 10.10 Tolerances .73 11 Arc-suppression reactors74 11.1 General .74 11.2 Design.74 11.3 Term
35、s and definitions 74 11.4 Rating .75 11.4.1 Rated voltage 75 11.4.2 Maximum continuous voltage.75 11.4.3 Rated current 75 11.4.4 Rated current duration.76 SANS 60076-6:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 6 60076-6 IEC:2007 11.4
36、.5 Adjustment range 76 11.4.6 Auxiliary winding .76 11.4.7 Secondary winding 76 11.4.8 Linearity of the arc-suppression reactor.76 11.5 Temperature rise.76 11.6 Insulation level 77 11.7 Rating plates.77 11.8 Tests.77 11.8.1 General.77 11.8.2 Routine tests.78 11.8.3 Type tests .78 11.8.4 Special test
37、s .78 11.8.5 Measurement of current at rated voltage (type test), measurement of current (routine test)78 11.8.6 Measurement of no-load voltage of the auxiliary and secondary windings (routine test).78 11.8.7 Temperature rise test (type test) .79 11.8.8 Dielectric tests (routine test, type test) 79
38、11.8.9 Measurement of loss (special test) 79 11.8.10 Measurement of linearity (special test) 80 11.8.11 Measurement of acoustic sound level (special test).80 11.8.12 Endurance tests of the inductance regulation mechanism (special test) 80 11.8.13 Demonstration of ability to withstand the dynamic eff
39、ects of the rated current (special test) 80 11.9 Tolerances 81 12 Smoothing reactors 81 12.1 General .81 12.2 Design.81 12.3 Terms and definitions 81 12.4 Rating .82 12.4.1 Rated voltage 82 12.4.2 Maximum operating voltage.82 12.4.3 Rated continuous direct current.83 12.4.4 Rated continuous current
40、spectrum .83 12.4.5 Short-time overload current, current spectrum and current duration or duty-cycle83 12.4.6 Rated transient fault current 83 12.4.7 Rated incremental inductance83 12.4.8 Linearity of the smoothing reactor83 12.4.9 Additional requirements for reactors with directly liquid cooled win
41、dings 83 12.5 Temperature rise.84 12.6 Insulation levels 84 12.6.1 Lightning impulse levels 84 12.6.2 Switching impulse levels84 12.6.3 Separate source d.c. withstand voltage level .84 12.6.4 Polarity-reversal withstand voltage level84 12.6.5 Separate source a.c. withstand voltage level .84 12.7 Rat
42、ing plates.85 SANS 60076-6:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60076-6 IEC:2007 7 12.8 Tests.85 12.8.1 General.85 12.8.2 Routine tests.85 12.8.3 Type test.86 12.8.4 Special tests .86 12.8.5 Measurement of incremental inductance
43、(routine test).86 12.8.6 Measurement of the harmonic current loss and calculation of the total loss (routine test).87 12.8.7 Separate source a.c. withstand voltage test (routine test)88 12.8.8 Separate source d.c. withstand voltage test for liquid-immersed reactors (routine test)88 12.8.9 Polarity-r
44、eversal withstand test for liquid-immersed reactors (routine test) .89 12.8.10 Lightning impulse test (routine test).90 12.8.11 Switching impulse test (routine test, type test).90 12.8.12 Wet separate source d.c. withstand voltage test for dry-type reactors (type test) 90 12.8.13 Temperature rise te
45、st (type test) .90 12.8.14 Measurement of acoustic sound level (special test).91 12.8.15 Measurement of high frequency impedance (special test)92 12.8.16 Test of the tightness of the liquid cooling circuit for reactors with directly liquid cooled windings (routine test) 92 12.8.17 Measurement of the
46、 pressure drop for reactors with directly liquid cooled windings (type test)93 12.8.18 Transient fault current test (special test) .93 12.8.19 Chopped wave impulse test for liquid-immersed reactors (special test) 94 12.9 Tolerances 94 Annex A (informative) Information on shunt reactor switching and
47、on special applications 95 Annex B (informative) Magnetic characteristic of reactors98 Annex C (informative) Mutual reactance, coupling factor and equivalent reactances of three-phase reactors.105 Annex D (informative) Temperature correction of losses for liquid-immersed gapped- core and magneticall
48、y-shielded air-core reactors 108 Annex E (normative) Turn-to-turn overvoltage test for dry-type reactors.110 Annex F (informative) Short-circuit testing .112 Annex G (informative) Resistors Characteristics, specification and tests.114 Bibliography117 Figure 1 Types of magnetic characteristics for re
49、actors .15 Figure 2 Parameters for non-linear magnetic characteristic16 Figure 3 Measurement of mutual reactance for three-phase reactors or banks of three single-phase reactors 27 Figure 4 Phase-to-earth test circuit for single-phase excitation 29 Figure 5 Phase-to-phase test circuit for single-phase excitation.29 SANS 60076-6:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 8 60076-6 IEC:2007 Figure 6 Single-phase excitation circuit for reactors with magnetic shield
