PHASE CONTROL SYSTEM FOR SWITCHING CIRCUIT BREAKER
PROBLEM TO BE SOLVED: To suppress the generation of an overvoltage applied during opening and closing of a switching circuit breaker by a method wherein by outputting a control signal by which opening closing operation of a first or a second switching circuit breaker is synchronized with the phase o...
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| creator | NAKASU TERUO YORITA MITSUMASA TSUNETO TOSHIO KUMANO DAIJIRO MATSUMURA YOSHITO |
| description | PROBLEM TO BE SOLVED: To suppress the generation of an overvoltage applied during opening and closing of a switching circuit breaker by a method wherein by outputting a control signal by which opening closing operation of a first or a second switching circuit breaker is synchronized with the phase of a source voltage waveform corresponding to the switching circuit breaker to control an overvoltage, each switching circuit breaker is opened or closed in the zero position of a source voltage waveform or at the interpole voltage minimum value of each circuit breaker. SOLUTION: A phase control system for switching circuit breaker is constituted such that a power source applied on first and second switching circuit breakers 6A and 6B to feed a power to the middle section 7c of return feeders 7a and 7b by alternately switching first and second power sources A and B, and the middle section 7c is changed over between the first and second power sources A and B. In this case, a phase control device 40 is provided to output a signal to first and second switching circuit breakers 6A and 6B such that the closing positions or the opening positions of the power sources A and B and each source voltage waveform are changed-over in synchronism with each other. |
| format | Patent |
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SOLUTION: A phase control system for switching circuit breaker is constituted such that a power source applied on first and second switching circuit breakers 6A and 6B to feed a power to the middle section 7c of return feeders 7a and 7b by alternately switching first and second power sources A and B, and the middle section 7c is changed over between the first and second power sources A and B. In this case, a phase control device 40 is provided to output a signal to first and second switching circuit breakers 6A and 6B such that the closing positions or the opening positions of the power sources A and B and each source voltage waveform are changed-over in synchronism with each other.</description><edition>6</edition><language>eng</language><subject>PERFORMING OPERATIONS ; POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES ; TRANSPORTING ; VEHICLES IN GENERAL</subject><creationdate>1998</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=19980804&DB=EPODOC&CC=JP&NR=H10203205A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980804&DB=EPODOC&CC=JP&NR=H10203205A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKASU TERUO</creatorcontrib><creatorcontrib>YORITA MITSUMASA</creatorcontrib><creatorcontrib>TSUNETO TOSHIO</creatorcontrib><creatorcontrib>KUMANO DAIJIRO</creatorcontrib><creatorcontrib>MATSUMURA YOSHITO</creatorcontrib><title>PHASE CONTROL SYSTEM FOR SWITCHING CIRCUIT BREAKER</title><description>PROBLEM TO BE SOLVED: To suppress the generation of an overvoltage applied during opening and closing of a switching circuit breaker by a method wherein by outputting a control signal by which opening closing operation of a first or a second switching circuit breaker is synchronized with the phase of a source voltage waveform corresponding to the switching circuit breaker to control an overvoltage, each switching circuit breaker is opened or closed in the zero position of a source voltage waveform or at the interpole voltage minimum value of each circuit breaker. SOLUTION: A phase control system for switching circuit breaker is constituted such that a power source applied on first and second switching circuit breakers 6A and 6B to feed a power to the middle section 7c of return feeders 7a and 7b by alternately switching first and second power sources A and B, and the middle section 7c is changed over between the first and second power sources A and B. In this case, a phase control device 40 is provided to output a signal to first and second switching circuit breakers 6A and 6B such that the closing positions or the opening positions of the power sources A and B and each source voltage waveform are changed-over in synchronism with each other.</description><subject>PERFORMING OPERATIONS</subject><subject>POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES</subject><subject>TRANSPORTING</subject><subject>VEHICLES IN GENERAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAK8HAMdlVw9vcLCfL3UQiODA5x9VVw8w9SCA73DHH28PRzV3D2DHIO9QxRcApydfR2DeJhYE1LzClO5YXS3AyKbq5ApbqpBfnxqcUFicmpeakl8V4BHoYGRgbGRgamjsbEqAEAjq4nEg</recordid><startdate>19980804</startdate><enddate>19980804</enddate><creator>NAKASU TERUO</creator><creator>YORITA MITSUMASA</creator><creator>TSUNETO TOSHIO</creator><creator>KUMANO DAIJIRO</creator><creator>MATSUMURA YOSHITO</creator><scope>EVB</scope></search><sort><creationdate>19980804</creationdate><title>PHASE CONTROL SYSTEM FOR SWITCHING CIRCUIT BREAKER</title><author>NAKASU TERUO ; YORITA MITSUMASA ; TSUNETO TOSHIO ; KUMANO DAIJIRO ; MATSUMURA YOSHITO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH10203205A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1998</creationdate><topic>PERFORMING OPERATIONS</topic><topic>POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES</topic><topic>TRANSPORTING</topic><topic>VEHICLES IN GENERAL</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKASU TERUO</creatorcontrib><creatorcontrib>YORITA MITSUMASA</creatorcontrib><creatorcontrib>TSUNETO TOSHIO</creatorcontrib><creatorcontrib>KUMANO DAIJIRO</creatorcontrib><creatorcontrib>MATSUMURA YOSHITO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKASU TERUO</au><au>YORITA MITSUMASA</au><au>TSUNETO TOSHIO</au><au>KUMANO DAIJIRO</au><au>MATSUMURA YOSHITO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PHASE CONTROL SYSTEM FOR SWITCHING CIRCUIT BREAKER</title><date>1998-08-04</date><risdate>1998</risdate><abstract>PROBLEM TO BE SOLVED: To suppress the generation of an overvoltage applied during opening and closing of a switching circuit breaker by a method wherein by outputting a control signal by which opening closing operation of a first or a second switching circuit breaker is synchronized with the phase of a source voltage waveform corresponding to the switching circuit breaker to control an overvoltage, each switching circuit breaker is opened or closed in the zero position of a source voltage waveform or at the interpole voltage minimum value of each circuit breaker. SOLUTION: A phase control system for switching circuit breaker is constituted such that a power source applied on first and second switching circuit breakers 6A and 6B to feed a power to the middle section 7c of return feeders 7a and 7b by alternately switching first and second power sources A and B, and the middle section 7c is changed over between the first and second power sources A and B. In this case, a phase control device 40 is provided to output a signal to first and second switching circuit breakers 6A and 6B such that the closing positions or the opening positions of the power sources A and B and each source voltage waveform are changed-over in synchronism with each other.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | PERFORMING OPERATIONS POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES TRANSPORTING VEHICLES IN GENERAL |
| title | PHASE CONTROL SYSTEM FOR SWITCHING CIRCUIT BREAKER |
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