PROCEDURE TESTING RESISTANCE OF INSULATION AND PROTECTION OF ELECTRIC NETWORK
FIELD: electric measuring technology, relay protection of power supply systems. SUBSTANCE: procedure is based on measurement of leakage current from auxiliary source of measurement voltage in the form of periodic sequence of pulses of type specified below and includes measurement of leakage current...
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creator | MALAFEEV S.I MAMAJ V.S SEREBRENNIKOV N.A FROLKIN V.G |
description | FIELD: electric measuring technology, relay protection of power supply systems. SUBSTANCE: procedure is based on measurement of leakage current from auxiliary source of measurement voltage in the form of periodic sequence of pulses of type specified below and includes measurement of leakage current I1 in time interval T |
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SUBSTANCE: procedure is based on measurement of leakage current from auxiliary source of measurement voltage in the form of periodic sequence of pulses of type specified below and includes measurement of leakage current I1 in time interval T <t <2T and leakage current I2 in time interval 3T < t <4T by integration of voltage drop across standard resistance during period of feeding network, computation of resistance of insulation by formula , comparison of obtained value with two settings R1 and R2, N1 repetition of measurements with rins < R1 and n2 repetition of measurements with R1 < rins < R2 and de-energizing of network in case of sequential verification of fact of decrease of resistance of insulation by n1 or n2 times. EFFECT: enhanced noise immunity of measurement of resistance of insulation and reliability of protection of power supply systems. 4 dwg]]></description><edition>7</edition><language>eng</language><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ; GENERATION ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2000</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&date=20000120&DB=EPODOC&CC=RU&NR=2144679C1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000120&DB=EPODOC&CC=RU&NR=2144679C1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MALAFEEV S.I</creatorcontrib><creatorcontrib>MAMAJ V.S</creatorcontrib><creatorcontrib>SEREBRENNIKOV N.A</creatorcontrib><creatorcontrib>FROLKIN V.G</creatorcontrib><title>PROCEDURE TESTING RESISTANCE OF INSULATION AND PROTECTION OF ELECTRIC NETWORK</title><description><![CDATA[FIELD: electric measuring technology, relay protection of power supply systems. 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EFFECT: enhanced noise immunity of measurement of resistance of insulation and reliability of protection of power supply systems. 4 dwg]]></description><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>GENERATION</subject><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPANCPJ3dnUJDXJVCHENDvH0c1cIcg32DA5x9HN2VfB3U_D0Cw71cQzx9PdTcPRzUQAqD3F1BnOBkq4-QHaQp7OCn2tIuH-QNw8Da1piTnEqL5TmZlBwcw1x9tBNLciPTy0uSExOzUstiQ8KNTI0MTEzt3Q2NCZCCQDBaC5d</recordid><startdate>20000120</startdate><enddate>20000120</enddate><creator>MALAFEEV S.I</creator><creator>MAMAJ V.S</creator><creator>SEREBRENNIKOV N.A</creator><creator>FROLKIN V.G</creator><scope>EVB</scope></search><sort><creationdate>20000120</creationdate><title>PROCEDURE TESTING RESISTANCE OF INSULATION AND PROTECTION OF ELECTRIC NETWORK</title><author>MALAFEEV S.I ; MAMAJ V.S ; SEREBRENNIKOV N.A ; FROLKIN V.G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_RU2144679C13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2000</creationdate><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>GENERATION</topic><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>MALAFEEV S.I</creatorcontrib><creatorcontrib>MAMAJ V.S</creatorcontrib><creatorcontrib>SEREBRENNIKOV N.A</creatorcontrib><creatorcontrib>FROLKIN V.G</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MALAFEEV S.I</au><au>MAMAJ V.S</au><au>SEREBRENNIKOV N.A</au><au>FROLKIN V.G</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCEDURE TESTING RESISTANCE OF INSULATION AND PROTECTION OF ELECTRIC NETWORK</title><date>2000-01-20</date><risdate>2000</risdate><abstract><![CDATA[FIELD: electric measuring technology, relay protection of power supply systems. SUBSTANCE: procedure is based on measurement of leakage current from auxiliary source of measurement voltage in the form of periodic sequence of pulses of type specified below and includes measurement of leakage current I1 in time interval T <t <2T and leakage current I2 in time interval 3T < t <4T by integration of voltage drop across standard resistance during period of feeding network, computation of resistance of insulation by formula , comparison of obtained value with two settings R1 and R2, N1 repetition of measurements with rins < R1 and n2 repetition of measurements with R1 < rins < R2 and de-energizing of network in case of sequential verification of fact of decrease of resistance of insulation by n1 or n2 times. EFFECT: enhanced noise immunity of measurement of resistance of insulation and reliability of protection of power supply systems. 4 dwg]]></abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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subjects | CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
title | PROCEDURE TESTING RESISTANCE OF INSULATION AND PROTECTION OF ELECTRIC NETWORK |
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