IEC IEEE 60076-57-1202-2017 Power transformers - Part 57-1202 Liquid immersed phase-shifting transformers《电力变压器 第57-1202部分 液浸相位变换器》.pdf

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1、 IEC/IEEE 60076-57-1202 Edition 1.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 57-1202: Liquid immersed phase-shifting transformers Transformateurs de puissance Partie 57-1202: Transformateurs dphaseurs immergs dans un liquide IEC/IEEE 60076-57-1202:2017-05(en-fr) co

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12、ssistance, please contact the Customer Service Centre: csciec.ch. IEC/IEEE 60076-57-1202 Edition 1.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Power transformers Part 57-1202: Liquid immersed phase-shifting transformers Transformateurs de puissance Partie 57-1202: Transformateurs dphaseurs

13、 immergs dans un liquide INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.180 ISBN 978-2-8322-4258-2 Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publicatio

14、n via un distributeur agr. Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale colour inside 2 IEC/IEEE 60076-57-1202:2017 IEC/IEEE 2017 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 2.1 IEC references 7 2.2 I

15、EEE references 7 3 Terms and definitions 8 4 Use of normative references 11 5 Service conditions . 11 5.1 General . 11 5.2 Usual service conditions . 11 5.2.1 Switching arrangement 11 5.2.2 Power flow . 11 5.2.3 Operation with two or more PSTs in series or parallel 11 5.2.4 Phase unbalance . 12 5.2.

16、5 Surge protection 12 6 Rating and general requirements . 12 6.1 Rated power . 12 6.2 Loading at other than rated conditions 12 6.3 Specification of buck capability . 12 6.4 Cooling modes 13 6.5 Short circuit impedance and load phase angle capability . 13 6.5.1 Specification 13 6.5.2 Short circuit i

17、mpedance for asymmetric designs 13 6.6 Neutral earthing (grounding) . 13 6.7 Rated voltage . 13 6.8 Voltage variation and asymmetric design 13 6.9 Rated frequency . 14 6.10 Operation at higher than rated voltage and/or at other than rated frequency . 14 6.11 Highest voltage for equipment and dielect

18、ric test levels 14 6.12 Taps . 14 6.13 Sound level . 14 6.14 Transport 14 7 Construction 14 7.1 General . 14 7.2 Liquid-filled connections between tanks 15 7.3 Liquid insulation and preservation system . 15 7.4 Alignment between tanks 15 7.5 Core and core frame earthing arrangements . 16 7.6 Test co

19、nnections . 16 8 Short circuit capability . 16 9 Connection phase displacement symbols . 16 9.1 General . 16 9.2 Special symbols for PSTs . 16 9.3 Clock number notation 17 9.4 Examples 17 9.4.1 Single core phase shifting transformers . 17 IEC/IEEE 60076-57-1202:2017 3 IEC/IEEE 2017 9.4.2 Two core ph

20、ase shifting transformers 19 9.4.3 Transformers incorporating a phase shifting element . 21 10 Rating plates (nameplates) 22 11 Terminal markings and phase rotation . 23 12 Information to be provided by the manufacturer . 23 13 Tests . 24 13.1 General . 24 13.2 Routine tests. 24 13.3 Type (design) t

21、ests . 24 13.4 Special tests . 24 13.5 Winding resistance 25 13.6 Measurement of voltage ratio, phase angle and check of phase displacement 25 13.7 Measurement of short-circuit impedance and load loss . 25 13.8 Temperature-rise test 26 13.9 Measurement of no-load loss and current . 26 13.10 Determin

22、ation of sound level . 26 13.10.1 General . 26 13.10.2 For PSTs with one combined cooling system . 26 13.10.3 For PSTs with separate exciting and series unit cooling systems . 27 13.11 Measurement of zero sequence impedance 27 13.12 Dielectric tests 27 13.12.1 General . 27 13.12.2 Induced voltage te

23、st with partial discharge measurement (IVPD) . 28 13.12.3 Switching impulse test (SI) 28 13.12.4 Lightning impulse test 28 13.12.5 Lightning impulses applied to multiple line terminals simultaneously (LIMT) . 29 13.13 Tests on on-load tap-changers operation test . 29 13.14 Leak testing with pressure

24、 30 13.15 Vacuum deflection test 30 13.16 Pressure deflection test 30 14 Tolerances 30 14.1 General . 30 14.2 Tolerance for impedance and phase angle 30 Annex A (informative) Check list of information to be provided with enquiry and order . 32 A.1 Rating and general data 32 A.1.1 Normal information

25、32 A.1.2 Special information 33 A.2 Parallel operation 34 Annex B (informative) Behaviour of a phase shifting transformer with non-symmetrical fault currents. 35 Annex C (informative) Example specification of buck capability . 37 Annex D (informative) Additional noise measurements . 38 Annex E (info

26、rmative) Calculation of phase angle under load . 40 Annex F (informative) Additional information on advance-retard switch 44 F.1 Principle . 44 F.2 Classification within the international standardization system 44 4 IEC/IEEE 60076-57-1202:2017 IEC/IEEE 2017 F.3 Requirements according to IEC 60214-1

27、and IEEE Std C57.131 . 44 Bibliography 45 Figure 1 Example A: DS0-3/9 18 Figure 2 Example B: PS0-3/9 18 Figure 3 Example C: DA0-3 19 Figure 4 Example D: YNyn/IIId S0-3/9 . 20 Figure 5 Example E: YNyn+d/IIId A0-3/9 . 20 Figure 6 Example F: YNa0yn/dIII A0-3/9 . 21 Figure 7 Example G: V A0-2/8. 22 Figu

28、re B.1 PST with single phase fault and surge protection 36 Figure E.1 Phase angle diagram for a PST under load where 0 0 and L0 and L 0 . 41 Figure E.4 Phase angle diagram for a PST under load where 00 . 41 Table C.1 Required PST capability in buck operation . 37 Table D.1 Combinations of sound leve

29、l measurements needed to represent different loading conditions . 39 IEC/IEEE 60076-57-1202:2017 5 IEC/IEEE 2017 POWER TRANSFORMERS Part 57-1202: Liquid immersed phase-shifting transformers FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardizatio

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