Influence of line routing and terminations on transient overvoltages in LV power installations

Ibrahim A. Metwally, Fridolin H. Heidler

Research output: Contribution to journalArticle

Abstract

IEC 62305-4 gives the rules for the selection and the installation of surge protective devices (SPDs), where the maximum enhancement factor is considered to be equal to 2 in the worst case of open-circuit condition. The objective of the present paper is to check this relation for equipment connected to low-voltage (LV) power system. The LV power system is considered as TN-S system with different routings in three- and six-storey buildings. The terminals of apparatus are substituted by a variety of different loads, namely, resistances, inductances, and capacitances. All Maxwell's equations are solved by the method of moments (MoM) and the voltage is calculated at the apparatus terminals. The SPD itself is simulated by a voltage source at the ground floor. The results reveal that the voltage at the apparatus terminals may overshoot the SPD protection level by a factor of 3 irrespective of the number of floors and loops.

Original languageEnglish
Pages (from-to)1053-1064
Number of pages12
JournalEuropean Transactions on Electrical Power
Volume19
Issue number8
DOIs
Publication statusPublished - Nov 2009

Fingerprint

Low Voltage
Surge
Termination
Routing
Voltage
Power System
Line
Electric potential
S-system
Inductance
Overshoot
Method of Moments
Capacitance
Maxwell's equations
Enhancement
Maxwell equations
Method of moments
Influence
Networks (circuits)

Keywords

  • Branching
  • Enhancement factor
  • Loops
  • Low-voltage installation
  • Method of moments
  • Protective distance
  • Protective level
  • Residual voltage
  • Routing
  • Silicon avalanche diodes
  • Surge protective device (SPD)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Influence of line routing and terminations on transient overvoltages in LV power installations. / Metwally, Ibrahim A.; Heidler, Fridolin H.

In: European Transactions on Electrical Power, Vol. 19, No. 8, 11.2009, p. 1053-1064.

Research output: Contribution to journalArticle

@article{cd6a7ad3ae9c44b3a09bdce2acb1b704,
title = "Influence of line routing and terminations on transient overvoltages in LV power installations",
abstract = "IEC 62305-4 gives the rules for the selection and the installation of surge protective devices (SPDs), where the maximum enhancement factor is considered to be equal to 2 in the worst case of open-circuit condition. The objective of the present paper is to check this relation for equipment connected to low-voltage (LV) power system. The LV power system is considered as TN-S system with different routings in three- and six-storey buildings. The terminals of apparatus are substituted by a variety of different loads, namely, resistances, inductances, and capacitances. All Maxwell's equations are solved by the method of moments (MoM) and the voltage is calculated at the apparatus terminals. The SPD itself is simulated by a voltage source at the ground floor. The results reveal that the voltage at the apparatus terminals may overshoot the SPD protection level by a factor of 3 irrespective of the number of floors and loops.",
keywords = "Branching, Enhancement factor, Loops, Low-voltage installation, Method of moments, Protective distance, Protective level, Residual voltage, Routing, Silicon avalanche diodes, Surge protective device (SPD)",
author = "Metwally, {Ibrahim A.} and Heidler, {Fridolin H.}",
year = "2009",
month = "11",
doi = "10.1002/etep.281",
language = "English",
volume = "19",
pages = "1053--1064",
journal = "International Transactions on Electrical Energy Systems",
issn = "1430-144X",
publisher = "John Wiley and Sons Ltd",
number = "8",

}

TY - JOUR

T1 - Influence of line routing and terminations on transient overvoltages in LV power installations

AU - Metwally, Ibrahim A.

AU - Heidler, Fridolin H.

PY - 2009/11

Y1 - 2009/11

N2 - IEC 62305-4 gives the rules for the selection and the installation of surge protective devices (SPDs), where the maximum enhancement factor is considered to be equal to 2 in the worst case of open-circuit condition. The objective of the present paper is to check this relation for equipment connected to low-voltage (LV) power system. The LV power system is considered as TN-S system with different routings in three- and six-storey buildings. The terminals of apparatus are substituted by a variety of different loads, namely, resistances, inductances, and capacitances. All Maxwell's equations are solved by the method of moments (MoM) and the voltage is calculated at the apparatus terminals. The SPD itself is simulated by a voltage source at the ground floor. The results reveal that the voltage at the apparatus terminals may overshoot the SPD protection level by a factor of 3 irrespective of the number of floors and loops.

AB - IEC 62305-4 gives the rules for the selection and the installation of surge protective devices (SPDs), where the maximum enhancement factor is considered to be equal to 2 in the worst case of open-circuit condition. The objective of the present paper is to check this relation for equipment connected to low-voltage (LV) power system. The LV power system is considered as TN-S system with different routings in three- and six-storey buildings. The terminals of apparatus are substituted by a variety of different loads, namely, resistances, inductances, and capacitances. All Maxwell's equations are solved by the method of moments (MoM) and the voltage is calculated at the apparatus terminals. The SPD itself is simulated by a voltage source at the ground floor. The results reveal that the voltage at the apparatus terminals may overshoot the SPD protection level by a factor of 3 irrespective of the number of floors and loops.

KW - Branching

KW - Enhancement factor

KW - Loops

KW - Low-voltage installation

KW - Method of moments

KW - Protective distance

KW - Protective level

KW - Residual voltage

KW - Routing

KW - Silicon avalanche diodes

KW - Surge protective device (SPD)

UR - http://www.scopus.com/inward/record.url?scp=73649100588&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=73649100588&partnerID=8YFLogxK

U2 - 10.1002/etep.281

DO - 10.1002/etep.281

M3 - Article

VL - 19

SP - 1053

EP - 1064

JO - International Transactions on Electrical Energy Systems

JF - International Transactions on Electrical Energy Systems

SN - 1430-144X

IS - 8

ER -