BSI PD IEC TR 63042-303:2021
$167.15
UHV AC transmission systems – Guideline for the measurement of UHV AC transmission line power frequency parameters
| Published By | Publication Date | Number of Pages |
| BSI | 2021 | 38 |
This part of IEC 63042 specifies measurement methods of UHV AC transmission line power frequency parameters. These measured parameters mainly include sequence parameters, mutual parameters between double-circuit lines, phase parameters and some other related parameters.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 General 4.1 Background 4.2 Measurement items |
| 12 | 4.3 Main circuit configuration 4.4 Measurement condition 5 Requirement of measuring instrument 5.1 Current transformer 5.2 Voltage transformer 5.3 Measuring instrument of DC resistance |
| 13 | 5.4 Offset frequency power source 5.5 Special measuring instrument of transmission line power frequency parameter 6 Conversion of offset frequency measurement results |
| 14 | 7 Measurement of induced voltage and induced current 7.1 General 7.2 Induced voltage Figures Figure 1 – Measurement of induced voltage |
| 15 | 7.3 Induced current 8 Phase verification and measurement of insulation resistance 8.1 General 8.2 Phase verification Figure 2 – Measurement of induced voltage Figure 3 – Measurement of induced current |
| 16 | 8.3 Measurement of insulation resistance 9 Measurement of DC resistance Figure 4 – Phase verification Figure 5 – Measurement of insulation resistance |
| 17 | 10 Measurement of positive-sequence parameter Figure 6 – Measurement of DC resistance |
| 18 | Figure 7 – Measurement of positive-sequence parameter |
| 19 | 11 Measurement of zero-sequence parameter Tables Table 1 – Calculation method of positive-sequence parameters |
| 20 | Figure 8 – Measurement of zero-sequence parameter Table 2 – The calculation method of zero-sequence parameters |
| 21 | 12 Measurement of mutual impedance and coupling capacitance between double-circuit transmission lines on the same tower 12.1 General |
| 22 | 12.2 Measurement of line-mode impedance 12.3 Measurement of line-mode capacitance 12.4 Measurement of ground-mode impedance Figure 9 – Measurement of line-mode impedance Figure 10 – Measurement of line-mode capacitance |
| 23 | 12.5 Measurement of ground-mode capacitance 12.6 Data process Figure 11 – Measurement of ground-mode impedance Figure 12 – Measurement of ground-mode capacitance |
| 24 | 13 Measurement of phase parameters 13.1 Measurement of self-impedance Figure 13 – Measurement of self-impedance by two-terminalsynchronous measurement method Table 3 – Calculation process and equations of parametersper unit length of double-circuit lines on the same tower |
| 25 | 13.2 Measurement of self-capacitance Figure 14 – Measurement of self-capacitance by two-terminalsynchronous measurement method Table 4 – The calculation of self-impedance |
| 26 | 13.3 Measurement of coupling capacitance between two phases Figure 15 – Measurement of coupling capacitance between two phases Table 5 – The calculation of self-capacitance |
| 27 | 13.4 Measurement of mutual impedance between two phases |
| 28 | Figure 16 – Measurement of mutual impedance between two phases |
| 30 | Annex A (informative)Example of transmission line power frequency parameter measurement A.1 Introduction of transmission line A.2 Measurement of positive-sequence parameter A.2.1 Measured data A.2.2 Calculation results Table A.1 – Measured data of transmission line I Table A.2 – Positive-sequence parameters of transmission line I |
| 31 | A.3 Measurement of zero-sequence parameter A.3.1 Measured data A.3.2 Calculation results A.4 Measurement of phase parameter A.4.1 General Table A.3 – DC resistance of line I Table A.4 – Measured data of transmission line I Table A.5 – Zero-sequence parameters of transmission line I |
| 32 | A.4.2 Capacitance matrix A.4.3 Impedance matrix Table A.6 – The capacitance matrix of transmission line I and II Table A.7 – The resistance matrix of transmission line I and II Table A.8 – The reactance matrix of transmission line I and II |
| 33 | Annex B (informative)Derivation process of measurement and calculationfor coupling capacitance between two phases Figure B.1 – The π-equivalent circuit of 3-phase system during measurement |
| 36 | Annex C (informative)Safety precautions |
| 37 | Bibliography |
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BSI PD IEC TR 63042-303:2021
UHV AC transmission systems – Guideline for the measurement of UHV AC transmission line power…
