BS EN 62567:2013
$167.15
Overhead lines. Methods for testing self-damping characteristics of conductors
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 40 |
IEC 62567:2013 provides test procedures based on the documents mentioned in the introduction and devoted to minimize the causes of discrepancy between test results, taking into consideration the large experience accumulated in the last 30 years by numerous test engineers and available in literature, including a CIGRE Technical Brochure specifically referring to this standard (see Bibliography). This Standard describes the current methodologies, including apparatus, procedures and accuracies, for the measurement of conductor self-damping and for the data reduction formats. In addition, some basic guidance is also provided to inform the potential user of a given method’s strengths and weaknesses. The methodologies and procedures incorporated in this Standard are applicable only to testing on indoor laboratory spans. Key words: Overhead lines, Self-damping, Conductors
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 8 | INTRODUCTION |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Symbols and units 5 Test span arrangements 5.1 General |
| 11 | 5.2 Span terminations Figures Figure 1 – Test span for conductor self-damping measurements |
| 12 | 5.3 Shaker and vibration control system Figure 2 – Rigid clamp |
| 13 | Figure 3 – Electro-dynamic shaker |
| 14 | 5.4 Location of the shaker 5.5 Connection between the shaker and the conductor under test 5.5.1 General Figure 4 – Layout of a test stand for conductor self-damping measurements |
| 15 | 5.5.2 Rigid connection Figure 5 – Example of rigid connection |
| 16 | 5.5.3 Flexible connection 5.6 Transducers and measuring devices 5.6.1 Type of transducers Figure 6 – Example of flexible connection |
| 17 | 5.6.2 Transducer accuracy Figure 7 – Miniature accelerometer |
| 18 | 6 Conductor conditioning 6.1 General 6.2 Clamping 6.3 Creep 6.4 Running-in 7 Extraneous loss sources |
| 19 | 8 Test procedures 8.1 Determination of span resonance |
| 20 | 8.2 Power Method Figure 8 – Resonant condition detected by the acceleration and force signals |
| 22 | 8.3 ISWR Method |
| 24 | 8.4 Decay method |
| 25 | Figure 9 – Fuse wire system disconnecting a shaker from a test span; this double exposure shows the mechanism both closed and open. |
| 26 | 8.5 Comparison between the test methods Figure 10 – A decay trace |
| 27 | 8.6 Data presentation Tables Table 1 – Comparison of laboratory methods |
| 28 | Table 2 – Comparison of Conductor Self-damping Empirical Parameters |
| 29 | Annex A (normative) Recommended test parameters |
| 30 | Annex B (informative) Reporting recommendations |
| 31 | Figure B.1 – Example of conductor power dissipation characteristics |
| 32 | Figure B.2 – Example of conductor power dissipation characteristics |
| 33 | Annex C (informative) Correction for aerodynamic damping |
| 34 | Table C.1 – Coefficients to be used with equation C-3 |
| 35 | Annex D (informative) Correction of phase shift between transducers |
| 36 | Bibliography |
