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IEEE 1870 2019

IEEE 1870 2019

$53.08

IEEE Guide for the Parameter Measurement of AC Transmission Lines

Published By Publication Date Number of Pages
IEEE 2019 99
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New IEEE Standard – Active. In this guide, the field testing methodology and techniques are presented for measuring electrical parameters of AC transmission lines. The topics will include safety precautions; requirements for measuring instruments; measurement of induced voltage and current; phase verification and insulation resistance measurement; DC resistance measurement; off-line parameter measurement of symmetrical transmission line; off-line parameter measurement of asymmetrical transmission lines; eliminating power frequency interference during off-line measurement; zero-sequence parameter measurement with adjacent lines in operation and on-line parameter measurement of transmission lines.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 1870™-2019 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
7 Participants
8 Introduction
9 Contents
11 List of Figures
14 List of Tables
15 1. Overview
1.1 Scope
1.2 Purpose
1.3 Background
18 1.4 Application of distributed parameter measurement of ac lines
2. Normative references
3. Definitions, acronyms, and abbreviations
3.1 Definitions
20 3.2 Acronyms and abbreviations
22 4. Safety precautions
23 5. Requirements for measuring instruments
5.1 Current transformer
5.2 Potential transformer
5.3 Special instruments for parameter measurement of transmission lines
24 5.4 Off-frequency power source
5.5 Instruments for dc resistance measurement
6. General considerations during measurement
7. Measurement of induced voltage and current
7.1 General
25 7.2 Induced current measurement
7.3 Induced voltage measurement
26 8. Phase verification and insulation resistance measurement
8.1 General
8.2 Phase verification using dc (or ac) power sources
27 8.3 Phase verification using insulation testers
28 8.4 Considerations
29 9. DC resistance measurement
9.1 DC resistance measurement of three-phase transmission lines
30 9.2 DC resistance calculation
10. Index for parameter measurement of ac transmission lines
10.1 Off-line measurement
10.2 Zero-sequence parameter measurement with adjacent lines in operation
10.3 On-line measurement
31 11. Off-line parameter measurement of symmetrical transmission lines
11.1 Measurement and calculation of the electrical parameters of single-circuit transmission lines
35 11.2 Measurement and calculation of the electrical parameters of double-circuit lines on the same tower
40 11.3 Measurement of coupling parameters of short-distance double-circuit lines
43 12. Off-line parameter measurement of asymmetrical transmission lines
12.1 General
44 12.2 Impedance measurement of asymmetrical lines
46 12.3 Admittance measurement of asymmetrical lines
49 13. Eliminating power frequency interference during off-line measurement
13.1 General
13.2 Increasing voltage of test power sources
50 13.3 Sudden changes of test power source output
51 13.4 Using off-frequency sources
52 14. Zero-sequence mutual parameter measurement with adjacent lines in operation
14.1 General
53 14.2 Coupling parameter measurement of short-distance lines
57 14.3 Parameter measurement of double-circuit, long-distance lines
59 15. On-line parameter measurement of transmission lines
15.1 General
60 15.2 Positive-sequence lumped parameter measurement of short-distance, single-circuit lines
15.3 Positive-sequence distributed parameter measurement of long-distance. single-circuit lines
61 15.4 Zero-sequence parameter measurement
67 Annex A (informative) Arrangement and parameter calculation of multicircuit lines
A.1 Circuit arrangement of multicircuit transmission lines
70 A.2 Transposition principles
72 A.3 Calculation of line parameters
77 A.4 Calculation of induced voltage and current for multicircuit lines on the same tower
78 A.5 Calculation and measurement of induced voltage for double-circuit lines along the same corridor
80 Annex B (normative) Positive-sequence impedance measurement by a single-phase power source
B.1 General
B.2 Three-phase, positive-sequence impedance measurement by a single-phase power source
83 Annex C (informative) Circuit used for suppressing induced voltage at power frequency
C.1 Circuit for suppressing interference at power frequency while permitting the impedance measurement at frequency fS – Δf
84 C.2 Circuit for suppressing interference at power frequency while permitting the impedance measurement at frequency fS + Δf
85 Annex D (informative) Measurement and calculation of the electrical parameters of four-circuit lines on the same tower
D.1 General
87 D.2 Measuring the positive-sequence, short-circuit impedance and open-circuit impedance for a single-circuit line (mode 1)
88 D.3 Measuring the zero-sequence, open-circuit impedance and short-circuit impedance for four-circuit lines (mode 2)
90 D.4 Measuring the two-phase, positive-sequence, open-circuit impedance and short-circuit impedance (mode 3)
91 D.5 Measuring the two-phase, positive-sequence, open-circuit impedance and short-circuit impedance (mode 4)
93 D.6 Measuring the two-phase, positive-sequence, open-circuit impedance and short-circuit impedance (mode 5)
94 D.7 Calculation of parameters per unit length for four-circuit lines
96 Annex E (informative) Equivalent Π representation and lumped parameter calculation at power frequency
E.1 General
E.2 Calculation of positive-sequence parameters
97 E.3 Calculation of zero-sequence parameters
98 Annex F (informative) Bibliography
99 Back cover

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