Result Details
Evaluation of the Touch Voltage Recorded in the Compensated Network 22 kV During Earth Fault
Toman Petr, prof. Ing., Ph.D., CVVOZE (FEEC), UEEN (FEEC)
Dvořák Jaromír, CVVOZE (FEEC), UEEN (FEEC)
Orságová Jaroslava, doc. Ing., Ph.D., CVVOZE (FEEC), UEEN (FEEC)
Šátek Václav, Ing., Ph.D., DITS (FIT)
The paper focuses on the evaluation of the touch voltage measured during a series of experimental measurements performed in a compensated 22 kV distribution network equipped with an automatic system for the additional earthing of the affected phase. During the experiment, a metallic earth fault was artificially created in selected dis-tribution transforming substations. Two different network extents were tested, a basic one – 300 A – considered by Czech technical standards as a limit value for operating a mixed distribution network and an extent of 800 A repre-senting a maximum value of the tested network. The paper analyses the level of touch voltage with respect to the tech-nical standards in force as well as with respect to the volt-age of the increase of the substation potential during the fault for 300 A and 800 A and assesses the influence of the additional earthing of the affected phase on the level of touch voltage.
touch voltage, earth fault, compensated distri-bution network, residual current
@inproceedings{BUT92232,
author="David {Topolánek} and Petr {Toman} and Jaromír {Dvořák} and Jaroslava {Orságová} and Václav {Šátek}",
title="Evaluation of the Touch Voltage Recorded in the Compensated Network 22 kV During Earth Fault",
booktitle="In Proceedings of the 13th International Scientific Conference Elecric Power Engineering 2012",
year="2012",
pages="159--164",
publisher="Brno university of technology",
address="Brno",
isbn="978-80-214-4514-7"
}