Novel Auto-Reclosing Blocking Method for Combined Overhead-Cable Lines in Power Networks

This paper presents a novel auto-reclosing blocking method for combined overhead-cable lines in power distribution networks that are solidly or impedance grounded, with distribution transformers in a delta connection in their high-voltage sides. The main contribution of this new technique is that it...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2016-11, Vol.9 (11), p.964-964
Main Authors: Arrabe, Ricardo Granizo, Gaona, Carlos Antonio Platero, Gomez, Fernando alvarez, Lopez, Emilio Rebollo
Format: Article
Language:English
Subjects:
Cables
Computer simulation
Deltas
distribution protections
electrical distribution networks
Electrical engineering
ground faults
Grounds
Joints
Networks
Position (location)
Power supply
protection
Transformers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a novel auto-reclosing blocking method for combined overhead-cable lines in power distribution networks that are solidly or impedance grounded, with distribution transformers in a delta connection in their high-voltage sides. The main contribution of this new technique is that it can detect whether a ground fault has been produced at the overhead line side or at the cable line side, thus improving the performance of the auto-reclosing functionality. This localization technique is based on the measurements and analysis of the argument differences between the load currents in the active conductors of the cable and the currents in the shields at the cable end where the transformers in delta connection are installed, including a wavelet analysis. This technique has been verified through computer simulations and experimental laboratory tests.
ISSN:1996-1073
1996-1073
DOI:10.3390/en9110964