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Utilization of Underbuilt Shield Wires to Improve the Lightning Performance of Overhead Distribution Lines Hit by Direct Strokes
- Source :
- IEEE Transactions on Power Delivery. 35:1656-1666
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- The improvement of the lightning performance of overhead distribution lines, hit by direct strokes, is investigated considering the use of additional shield wires beneath the phase conductors. The frequency-domain theory of multiconductor transmission lines with periodical grounding is adopted permitting a rigorous evaluation of the phase and shield wire currents and of the overvoltages across insulators. These can be minimized by careful positioning of the underbuilt shield wires. A sensitivity analysis on the overvoltages is conducted by varying either the position of the underbuilt shield wires and the grounding impedance.
- Subjects :
- chain matrix
overhead distribution line
shield wire
Computer science
Ground
020209 energy
Acoustics
lightning
multiconductor lines
overhead distribution lines
periodic grounding
shield wires
underbuilt wires
multiconductor line
Energy Engineering and Power Technology
02 engineering and technology
Lightning
Electric power transmission
Shield
0202 electrical engineering, electronic engineering, information engineering
Overhead (computing)
Electrical and Electronic Engineering
Sensitivity (electronics)
Electrical impedance
Electrical conductor
Subjects
Details
- ISSN :
- 19374208 and 08858977
- Volume :
- 35
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Power Delivery
- Accession number :
- edsair.doi.dedup.....809a0437d193c0cb9d52cf35e6f35974