INSULATION DETERIORATED REGION EVALUATION METHOD OF CV CABLE

INSULATION DETERIORATED REGION EVALUATION METHOD OF CV CABLE

PROBLEM TO BE SOLVED: To evaluate a water tree generating region by grasping quantitatively a region range having much water quantity indispensable for generation of water tree, in order to solve a problem that a submerged region of a CV cable or possibility of water tree generation is estimated by...

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Hauptverfasser: TAKEHANA HAJIME, KON HIROYUKI
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator TAKEHANA HAJIME
KON HIROYUKI
description PROBLEM TO BE SOLVED: To evaluate a water tree generating region by grasping quantitatively a region range having much water quantity indispensable for generation of water tree, in order to solve a problem that a submerged region of a CV cable or possibility of water tree generation is estimated by a surrounding environment state hitherto, which is not quantitative evaluation. SOLUTION: A pulsed voltage is inputted from one end of a cable and its reflected wave is measured, and a cable insulator submerged region is specified from the time difference between an incident wave and the reflected wave. When a peak voltage value of the reflected wave is a prescribed value, a water tree generating region is specified.
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SOLUTION: A pulsed voltage is inputted from one end of a cable and its reflected wave is measured, and a cable insulator submerged region is specified from the time difference between an incident wave and the reflected wave. When a peak voltage value of the reflected wave is a prescribed value, a water tree generating region is specified.</description><edition>7</edition><language>eng</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20010727&amp;DB=EPODOC&amp;CC=JP&amp;NR=2001201530A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20010727&amp;DB=EPODOC&amp;CC=JP&amp;NR=2001201530A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKEHANA HAJIME</creatorcontrib><creatorcontrib>KON HIROYUKI</creatorcontrib><title>INSULATION DETERIORATED REGION EVALUATION METHOD OF CV CABLE</title><description>PROBLEM TO BE SOLVED: To evaluate a water tree generating region by grasping quantitatively a region range having much water quantity indispensable for generation of water tree, in order to solve a problem that a submerged region of a CV cable or possibility of water tree generation is estimated by a surrounding environment state hitherto, which is not quantitative evaluation. SOLUTION: A pulsed voltage is inputted from one end of a cable and its reflected wave is measured, and a cable insulator submerged region is specified from the time difference between an incident wave and the reflected wave. 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SOLUTION: A pulsed voltage is inputted from one end of a cable and its reflected wave is measured, and a cable insulator submerged region is specified from the time difference between an incident wave and the reflected wave. When a peak voltage value of the reflected wave is a prescribed value, a water tree generating region is specified.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title INSULATION DETERIORATED REGION EVALUATION METHOD OF CV CABLE
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