PROCEDE ET DISPOSITIF DE PROTECTION DES THYRISTORS D'UNE VALVE CONTRE UN FAUX AMORCAGE
LE DISPOSITIF COMPORTE UN CAPTEUR DE COURANT ANODIQUE 1, PLACE DANS LE CIRCUIT DE PUISSANCE EN SHUNT SUR UN DIVISEUR DE TENSION 3. LE CAPTEUR 1 EST RACCORDE A UN CIRCUIT DE TEMPORISATION 4 COMPORTANT UN BLOC 5 DE POLARISATION POSITIVE D'ANODE DONT UNE ENTREE EST RELIEE AU POINT MILIEU "O&q...
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| creator | VALENTIN FEDOROVICH BARAKAEV, ALEXANDR ALEXANDROVICH MASLOV, OLEG PAVLOVICH NECHAEV ET ANATOLY IVANOVICH FEDOTOV |
| description | LE DISPOSITIF COMPORTE UN CAPTEUR DE COURANT ANODIQUE 1, PLACE DANS LE CIRCUIT DE PUISSANCE EN SHUNT SUR UN DIVISEUR DE TENSION 3. LE CAPTEUR 1 EST RACCORDE A UN CIRCUIT DE TEMPORISATION 4 COMPORTANT UN BLOC 5 DE POLARISATION POSITIVE D'ANODE DONT UNE ENTREE EST RELIEE AU POINT MILIEU "O" DU DIVISEUR DE TENSION 3 ET UN ORGANE DE RETARD 6 ASSERVI A L'AMPLITUDE ET A LA VITESSE DE DECROISSANCE DU COURANT ANODIQUE. L'ENTREE DE L'ORGANE EST RELIEE AU CAPTEUR 1 ET SA SORTIE A L'AUTRE ENTREE DU BLOC 5 QUI ATTAQUE UNE PORTE DE COMMANDE 7. L'ORGANE DE RETARD 6 MAINTIENT CONSTANTE LA POLARISATION POSITIVE DANS UNE PARTIE DE L'INTERVALLE DE TEMPS A PARTIR DU MOMENT OU LE COURANT ANODIQUE DEVIENT INFERIEUR A UNE CONSIGNE. L'INVENTION EST UTILISABLE NOTAMMENT DANS LES CONVERTISSEURS EN PONT POUR LES LIGNES DE TRANSPORT A COURANT CONTINU.
A device to carry out the method comprises an anode current monitor (1) connected in the power circuit of a thyristor (21) or a group of thyristors (2n) with a voltage divider (3) placed in parallel with this thyristor (21) or group of thyristors (2n). The anode current monitor (1) is connected to a timing circuit comprising a time-variable positive anode voltage bias unit (5) whose input is electrically coupled to the center tap ("0") of the voltage divider (3), and a delay unit (6) whose delay time is dependent on the magnitude and rate of drop of the anode current. The delay unit (6) has its input connected to the anode current monitor (1) and output connected to a second input of the positive bias unit (5). The purpose of the delay unit (6) is to ensure a constant positive voltage bias over a portion of a time interval, starting from an instant the anode current drops below a specified level. The output of the positive bias unit (5) is electrically coupled to a circuit which controls the thyristor (21) or group of thyristors (2n) by means of a switch (7) operated by voltage of a specified magnitude. |
| format | Patent |
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A device to carry out the method comprises an anode current monitor (1) connected in the power circuit of a thyristor (21) or a group of thyristors (2n) with a voltage divider (3) placed in parallel with this thyristor (21) or group of thyristors (2n). The anode current monitor (1) is connected to a timing circuit comprising a time-variable positive anode voltage bias unit (5) whose input is electrically coupled to the center tap ("0") of the voltage divider (3), and a delay unit (6) whose delay time is dependent on the magnitude and rate of drop of the anode current. The delay unit (6) has its input connected to the anode current monitor (1) and output connected to a second input of the positive bias unit (5). The purpose of the delay unit (6) is to ensure a constant positive voltage bias over a portion of a time interval, starting from an instant the anode current drops below a specified level. The output of the positive bias unit (5) is electrically coupled to a circuit which controls the thyristor (21) or group of thyristors (2n) by means of a switch (7) operated by voltage of a specified magnitude.</description><language>fre</language><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; BASIC ELECTRONIC CIRCUITRY ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ; GENERATION ; PULSE TECHNIQUE</subject><creationdate>1982</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=19821126&DB=EPODOC&CC=FR&NR=2506537A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19821126&DB=EPODOC&CC=FR&NR=2506537A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>VALENTIN FEDOROVICH BARAKAEV, ALEXANDR ALEXANDROVICH MASLOV, OLEG PAVLOVICH NECHAEV ET ANATOLY IVANOVICH FEDOTOV</creatorcontrib><title>PROCEDE ET DISPOSITIF DE PROTECTION DES THYRISTORS D'UNE VALVE CONTRE UN FAUX AMORCAGE</title><description>LE DISPOSITIF COMPORTE UN CAPTEUR DE COURANT ANODIQUE 1, PLACE DANS LE CIRCUIT DE PUISSANCE EN SHUNT SUR UN DIVISEUR DE TENSION 3. LE CAPTEUR 1 EST RACCORDE A UN CIRCUIT DE TEMPORISATION 4 COMPORTANT UN BLOC 5 DE POLARISATION POSITIVE D'ANODE DONT UNE ENTREE EST RELIEE AU POINT MILIEU "O" DU DIVISEUR DE TENSION 3 ET UN ORGANE DE RETARD 6 ASSERVI A L'AMPLITUDE ET A LA VITESSE DE DECROISSANCE DU COURANT ANODIQUE. L'ENTREE DE L'ORGANE EST RELIEE AU CAPTEUR 1 ET SA SORTIE A L'AUTRE ENTREE DU BLOC 5 QUI ATTAQUE UNE PORTE DE COMMANDE 7. L'ORGANE DE RETARD 6 MAINTIENT CONSTANTE LA POLARISATION POSITIVE DANS UNE PARTIE DE L'INTERVALLE DE TEMPS A PARTIR DU MOMENT OU LE COURANT ANODIQUE DEVIENT INFERIEUR A UNE CONSIGNE. L'INVENTION EST UTILISABLE NOTAMMENT DANS LES CONVERTISSEURS EN PONT POUR LES LIGNES DE TRANSPORT A COURANT CONTINU.
A device to carry out the method comprises an anode current monitor (1) connected in the power circuit of a thyristor (21) or a group of thyristors (2n) with a voltage divider (3) placed in parallel with this thyristor (21) or group of thyristors (2n). The anode current monitor (1) is connected to a timing circuit comprising a time-variable positive anode voltage bias unit (5) whose input is electrically coupled to the center tap ("0") of the voltage divider (3), and a delay unit (6) whose delay time is dependent on the magnitude and rate of drop of the anode current. The delay unit (6) has its input connected to the anode current monitor (1) and output connected to a second input of the positive bias unit (5). The purpose of the delay unit (6) is to ensure a constant positive voltage bias over a portion of a time interval, starting from an instant the anode current drops below a specified level. The output of the positive bias unit (5) is electrically coupled to a circuit which controls the thyristor (21) or group of thyristors (2n) by means of a switch (7) operated by voltage of a specified magnitude.</description><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>GENERATION</subject><subject>PULSE TECHNIQUE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1982</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNirEKwjAURbs4iPoPb3MS1FKdQ_JiA5pXXl6CTqVInEQL9f8xgx_gdDnn3HmVOiaNBgEFjAsdBSfOQhElCGpx5AsFkPbGLghxALOOHiGpc0LQ5IURoger4hXUhVirEy6r2WN4Tnn120UFFkW3mzy--zyNwz2_8qe3vG-2h6Y-ql39x-ULL7YwRQ</recordid><startdate>19821126</startdate><enddate>19821126</enddate><creator>VALENTIN FEDOROVICH BARAKAEV, ALEXANDR ALEXANDROVICH MASLOV, OLEG PAVLOVICH NECHAEV ET ANATOLY IVANOVICH FEDOTOV</creator><scope>EVB</scope></search><sort><creationdate>19821126</creationdate><title>PROCEDE ET DISPOSITIF DE PROTECTION DES THYRISTORS D'UNE VALVE CONTRE UN FAUX AMORCAGE</title><author>VALENTIN FEDOROVICH BARAKAEV, ALEXANDR ALEXANDROVICH MASLOV, OLEG PAVLOVICH NECHAEV ET ANATOLY IVANOVICH FEDOTOV</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2506537A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>fre</language><creationdate>1982</creationdate><topic>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>GENERATION</topic><topic>PULSE TECHNIQUE</topic><toplevel>online_resources</toplevel><creatorcontrib>VALENTIN FEDOROVICH BARAKAEV, ALEXANDR ALEXANDROVICH MASLOV, OLEG PAVLOVICH NECHAEV ET ANATOLY IVANOVICH FEDOTOV</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>VALENTIN FEDOROVICH BARAKAEV, ALEXANDR ALEXANDROVICH MASLOV, OLEG PAVLOVICH NECHAEV ET ANATOLY IVANOVICH FEDOTOV</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCEDE ET DISPOSITIF DE PROTECTION DES THYRISTORS D'UNE VALVE CONTRE UN FAUX AMORCAGE</title><date>1982-11-26</date><risdate>1982</risdate><abstract>LE DISPOSITIF COMPORTE UN CAPTEUR DE COURANT ANODIQUE 1, PLACE DANS LE CIRCUIT DE PUISSANCE EN SHUNT SUR UN DIVISEUR DE TENSION 3. LE CAPTEUR 1 EST RACCORDE A UN CIRCUIT DE TEMPORISATION 4 COMPORTANT UN BLOC 5 DE POLARISATION POSITIVE D'ANODE DONT UNE ENTREE EST RELIEE AU POINT MILIEU "O" DU DIVISEUR DE TENSION 3 ET UN ORGANE DE RETARD 6 ASSERVI A L'AMPLITUDE ET A LA VITESSE DE DECROISSANCE DU COURANT ANODIQUE. L'ENTREE DE L'ORGANE EST RELIEE AU CAPTEUR 1 ET SA SORTIE A L'AUTRE ENTREE DU BLOC 5 QUI ATTAQUE UNE PORTE DE COMMANDE 7. L'ORGANE DE RETARD 6 MAINTIENT CONSTANTE LA POLARISATION POSITIVE DANS UNE PARTIE DE L'INTERVALLE DE TEMPS A PARTIR DU MOMENT OU LE COURANT ANODIQUE DEVIENT INFERIEUR A UNE CONSIGNE. L'INVENTION EST UTILISABLE NOTAMMENT DANS LES CONVERTISSEURS EN PONT POUR LES LIGNES DE TRANSPORT A COURANT CONTINU.
A device to carry out the method comprises an anode current monitor (1) connected in the power circuit of a thyristor (21) or a group of thyristors (2n) with a voltage divider (3) placed in parallel with this thyristor (21) or group of thyristors (2n). The anode current monitor (1) is connected to a timing circuit comprising a time-variable positive anode voltage bias unit (5) whose input is electrically coupled to the center tap ("0") of the voltage divider (3), and a delay unit (6) whose delay time is dependent on the magnitude and rate of drop of the anode current. The delay unit (6) has its input connected to the anode current monitor (1) and output connected to a second input of the positive bias unit (5). The purpose of the delay unit (6) is to ensure a constant positive voltage bias over a portion of a time interval, starting from an instant the anode current drops below a specified level. The output of the positive bias unit (5) is electrically coupled to a circuit which controls the thyristor (21) or group of thyristors (2n) by means of a switch (7) operated by voltage of a specified magnitude.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRONIC CIRCUITRY CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION PULSE TECHNIQUE |
| title | PROCEDE ET DISPOSITIF DE PROTECTION DES THYRISTORS D'UNE VALVE CONTRE UN FAUX AMORCAGE |
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