Transmission and distribution lines are sometimes
struck by lightning and there is some risk of electrical
puncture of suspension insulators due to high and steep
lightning surge voltage. When the insulators suffer from
steep lightning surge voltages, the solid insulating body
of the insulators sometimes is punctured before external
tlashover in the air occurs. These characteristics were
investigated on the insulators in the laboratory by using
different steep impulse voltages.
From the investigation results, both V-t characteristics
of external flashover and internal puncture were
obtained on the insulators. It was found that the puncture
of the insulators is a matter of probability, depending on
the dimensions of the insulators, steep impulse voltages
and number of impulse voltage applications. Especially,
the effect of number of voltage applications on puncture
probability was clarified and partial damage by a small
number of voltage applications was verified before
complete puncture occurred. Based on the study results,
an empirical equation relating to probability of puncture
(P), impulse voltage (V) and number of voltage applications
(N) was established.
%0 Journal Article
%1 morita1995steep
%A MORITA, KENJI
%A IMAKOMA, AKASHI
%A NISHIKAWA, MORIO
%A NOZAKI, HIROSHI
%D 1995
%J Electrical Engineering in Japan
%K Steep V-t breakdown curve design dielectric impulse insulation insulator of phenomenon solid voltage
%N 2
%P 60-66
%T Steep Impulse Voltage Characteristics of Suspension Insulators
%V 115
%X Transmission and distribution lines are sometimes
struck by lightning and there is some risk of electrical
puncture of suspension insulators due to high and steep
lightning surge voltage. When the insulators suffer from
steep lightning surge voltages, the solid insulating body
of the insulators sometimes is punctured before external
tlashover in the air occurs. These characteristics were
investigated on the insulators in the laboratory by using
different steep impulse voltages.
From the investigation results, both V-t characteristics
of external flashover and internal puncture were
obtained on the insulators. It was found that the puncture
of the insulators is a matter of probability, depending on
the dimensions of the insulators, steep impulse voltages
and number of impulse voltage applications. Especially,
the effect of number of voltage applications on puncture
probability was clarified and partial damage by a small
number of voltage applications was verified before
complete puncture occurred. Based on the study results,
an empirical equation relating to probability of puncture
(P), impulse voltage (V) and number of voltage applications
(N) was established.
@article{morita1995steep,
abstract = {Transmission and distribution lines are sometimes
struck by lightning and there is some risk of electrical
puncture of suspension insulators due to high and steep
lightning surge voltage. When the insulators suffer from
steep lightning surge voltages, the solid insulating body
of the insulators sometimes is punctured before external
tlashover in the air occurs. These characteristics were
investigated on the insulators in the laboratory by using
different steep impulse voltages.
From the investigation results, both V-t characteristics
of external flashover and internal puncture were
obtained on the insulators. It was found that the puncture
of the insulators is a matter of probability, depending on
the dimensions of the insulators, steep impulse voltages
and number of impulse voltage applications. Especially,
the effect of number of voltage applications on puncture
probability was clarified and partial damage by a small
number of voltage applications was verified before
complete puncture occurred. Based on the study results,
an empirical equation relating to probability of puncture
(P), impulse voltage (V) and number of voltage applications
(N) was established.},
added-at = {2021-02-16T13:56:18.000+0100},
author = {MORITA, KENJI and IMAKOMA, AKASHI and NISHIKAWA, MORIO and NOZAKI, HIROSHI},
biburl = {https://www.bibsonomy.org/bibtex/2ba8916e77d60f204e82d48134d975f08/chkokalis},
interhash = {f0feaee4a5c1062bc1fa69104d2a9667},
intrahash = {ba8916e77d60f204e82d48134d975f08},
journal = {Electrical Engineering in Japan},
keywords = {Steep V-t breakdown curve design dielectric impulse insulation insulator of phenomenon solid voltage},
number = 2,
pages = {60-66},
timestamp = {2021-02-16T23:16:29.000+0100},
title = {Steep Impulse Voltage Characteristics of Suspension Insulators},
volume = 115,
year = 1995
}