PL412018A1 - Method for measuring currents in multiphase power objects and the current-voltage transducer for the execution of this method - Google Patents

Method for measuring currents in multiphase power objects and the current-voltage transducer for the execution of this method

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Publication number
PL412018A1
PL412018A1 PL412018A PL41201815A PL412018A1 PL 412018 A1 PL412018 A1 PL 412018A1 PL 412018 A PL412018 A PL 412018A PL 41201815 A PL41201815 A PL 41201815A PL 412018 A1 PL412018 A1 PL 412018A1
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PL
Poland
Prior art keywords
measuring
current
voltage
current path
coils
Prior art date
Application number
PL412018A
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Polish (pl)
Other versions
PL227631B1 (en
Inventor
Stanisław Szkółka
Original Assignee
Politechnika Wrocławska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Politechnika Wrocławska filed Critical Politechnika Wrocławska
Priority to PL412018A priority Critical patent/PL227631B1/en
Publication of PL412018A1 publication Critical patent/PL412018A1/en
Publication of PL227631B1 publication Critical patent/PL227631B1/en

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  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

Sposób pomiaru prądów w obiektach elektroenergetycznych wielofazowych, w szczególności w trójfazowych układach szynowych generatorów, blokach generator - transformator, transformatorach energetycznych i stacjach elektroenergetycznych, przeznaczony zwłaszcza do stosowania w automatyce zabezpieczeniowej tych obiektów, w którym tory prądowe (T) sprzęga się magnetycznie z cewkami pomiarowymi (Cp), złączonymi następnie z członami pomiarowymi (P) napięcia, charakteryzuje się tym, że w obwody cewek pomiarowych (Cp) i członów pomiarowych (P) napięcia poszczególnych pomiarowych torów prądowych (T) wpina się szeregowo cewki kompensujące (Ck), sprzężone magnetycznie z torami prądowymi (T), sąsiadującymi z pomiarowym torem prądowym (T), które kompensują oddziaływanie prądów sąsiednich torów prądowych (T) na cewki pomiarowe (Cp) członów pomiarowych (P) napięcia poszczególnych pomiarowych torów prądowych (T). Przetwornik prądowo - napięciowy, służący do realizacji tego sposobu, zbudowany z kilku torów prądowych (T), z których co najmniej jeden stanowi pomiarowy tor prądowy (T), sprzężony magnetycznie z cewką pomiarową (Cp), która złączona jest następnie z członem pomiarowym (P) napięcia charakteryzuje się tym, że w obwód cewki pomiarowej (Cp) i członu pomiarowego (P) napięcia pomiarowego toru prądowego (T) włączona jest szeregowo co najmniej jedna cewka kompensująca (Ck), sprzężona magnetycznie z torem prądowym (T), sąsiadującym z pomiarowym torem prądowym (T).The method of measuring currents in multi-phase power facilities, in particular in three-phase generator busbar systems, generator-transformer blocks, power transformers and power stations, designed especially for use in the automation of these objects in which the current path (T) magnetically couples with measuring coils (Cp), then connected to the voltage measuring members (P), is characterized by the fact that in the circuits of the measuring coils (Cp) and measuring members (P), the voltages of individual measuring current paths (T) are connected in series compensation coils (Ck), coupled magnetically with current paths (T), adjacent to the measuring current path (T), which compensate the impact of the currents of adjacent current paths (T) on the measuring coils (Cp) of the measuring members (P), voltage of individual measuring current paths (T). Current-voltage transducer, used to implement this method, built of several current paths (T), at least one of which is the measuring current path (T), magnetically coupled with the measuring coil (Cp), which is then connected to the measuring element ( P) voltage is characterized by the fact that at least one compensation coil (Ck) in series with the measuring coil (Cp) and measuring element (P) of the measuring voltage (T) is magnetically coupled with the current path (T), adjacent with measuring current path (T).

PL412018A 2015-04-21 2015-04-21 Method for measuring currents in multiphase power objects and the current-voltage transducer for the execution of this method PL227631B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL412018A PL227631B1 (en) 2015-04-21 2015-04-21 Method for measuring currents in multiphase power objects and the current-voltage transducer for the execution of this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL412018A PL227631B1 (en) 2015-04-21 2015-04-21 Method for measuring currents in multiphase power objects and the current-voltage transducer for the execution of this method

Publications (2)

Publication Number Publication Date
PL412018A1 true PL412018A1 (en) 2016-02-29
PL227631B1 PL227631B1 (en) 2018-01-31

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Family Applications (1)

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PL412018A PL227631B1 (en) 2015-04-21 2015-04-21 Method for measuring currents in multiphase power objects and the current-voltage transducer for the execution of this method

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PL (1) PL227631B1 (en)

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Publication number Publication date
PL227631B1 (en) 2018-01-31

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