Device for automatic testing of power capacitors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00334379" target="_blank" >RIV/68407700:21230/19:00334379 - isvavai.cz</a>
Result on the web
<a href="https://worldwide.espacenet.com/publicationDetails/biblio?CC=EP&NR=2765428B1&KC=B1&FT=D&ND=1&date=20190925&DB=&locale=en_EP#" target="_blank" >https://worldwide.espacenet.com/publicationDetails/biblio?CC=EP&NR=2765428B1&KC=B1&FT=D&ND=1&date=20190925&DB=&locale=en_EP#</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Device for automatic testing of power capacitors
Original language description
In a device for automatic testing of power capacitors with high capacitance the tested power capacitor is complemented to the parallel oscillating circuit with the inductor with low losses. The inductor inductance value is selected such that at the testing frequency it has the same reactance as the tested power capacitor. To the series combination with the tested power capacitor connected in parallel with the inductor is inserted the first current sensor by its input terminals. Its output is connected both to the input of the regulating amplifier and to one input of the phase detector . To one of the connections between the parallel oscillating circuit and the output of the power amplifier is connected the second current sensor by its input terminals, the output of which is connected to the second input of the phase detector. The output of the phase detector is via the integrating amplifier and the voltage-controlled oscillator connected to one input of the adjustable attenuating element , while to its second input is connected the output of the regulating amplifier . The output of the adjustable attenuating element is connected via the power amplifier to the common connection of the inductor and the first current sensor and to the second input of the second current sensor . For testing of power capacitors with lower capacitance the connection is similar where the tested power capacitor is complemented with the inductor to series oscillating circuit. The inductor is bridged by the first voltage sensor connected to the input of the regulating amplifier and to one input of the phase detector . In parallel with the series oscillating circuit is connected the second voltage sensor , the output of which is connected to the second input of the phase detector. ### The patent is exploited by its owner.
Czech name
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Czech description
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Classification
Type
P - Patent
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Patent/design ID
EP2765428
Publisher
EPO_1 -
Publisher name
European Patent Office
Place of publication
Munich, The Hague, Berlin, Vienna, Brussels
Publication country
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Date of acceptance
Sep 25, 2019
Owner name
Czech Technical University
Method of use
A - Výsledek využívá pouze poskytovatel
Usage type
A - K využití výsledku jiným subjektem je vždy nutné nabytí licence