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RU2003138170A - ELECTRICAL DISCONNECTION UNIT FOR GROUP CHECK OF ELECTRIC POWER SHUNT METERS - Google Patents

ELECTRICAL DISCONNECTION UNIT FOR GROUP CHECK OF ELECTRIC POWER SHUNT METERS Download PDF

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Publication number
RU2003138170A
RU2003138170A RU2003138170/28A RU2003138170A RU2003138170A RU 2003138170 A RU2003138170 A RU 2003138170A RU 2003138170/28 A RU2003138170/28 A RU 2003138170/28A RU 2003138170 A RU2003138170 A RU 2003138170A RU 2003138170 A RU2003138170 A RU 2003138170A
Authority
RU
Russia
Prior art keywords
meters
installation
electric power
voltage
voltage source
Prior art date
Application number
RU2003138170/28A
Other languages
Russian (ru)
Other versions
RU2255347C1 (en
Inventor
Юрий Михайлович Фомичев (RU)
Юрий Михайлович Фомичев
Иль Леонидович Власкин (RU)
Илья Леонидович Власкин
Original Assignee
Томский политехнический университет (RU)
Томский политехнический университет
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.)
Filing date
Publication date
Application filed by Томский политехнический университет (RU), Томский политехнический университет filed Critical Томский политехнический университет (RU)
Priority to RU2003138170/28A priority Critical patent/RU2255347C1/en
Publication of RU2003138170A publication Critical patent/RU2003138170A/en
Application granted granted Critical
Publication of RU2255347C1 publication Critical patent/RU2255347C1/en

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

Claims (1)

Блок гальванической развязки для групповой поверки шунтовых счетчиков электрической энергии, содержащий развязывающий трансформатор, первичная обмотка которого подключена к источнику напряжения установки для поверки счетчиков, а вторичные обмотки подключены к входам напряжения n поверяемых счетчиков, токовые входы которых подключены последовательно к источнику тока установки, имеющему общую точку с источником напряжения, отличающийся тем, что содержит n-1 трансформаторов с двумя идентичными обмотками, первичные обмотки которых включены последовательно между источником напряжения и входом напряжения соответствующего поверяемого счетчика, а вторичные обмотки включены между общим проводом установки и токовым входом каждого последующего счетчика, причем первичная и вторичная обмотки включены согласно, вход напряжения последнего счетчика подключен непосредственно к источнику напряжения установки.The galvanic isolation unit for group verification of shunt electricity meters, containing an isolation transformer, the primary winding of which is connected to the voltage source of the installation for calibration of meters, and the secondary windings are connected to voltage inputs of n verified meters, the current inputs of which are connected in series to the current source of the installation, which has a common a point with a voltage source, characterized in that it contains n-1 transformers with two identical windings, the primary windings of which include are sequentially between the voltage source and the voltage input of the corresponding verified meter, and the secondary windings are connected between the common installation wire and the current input of each subsequent meter, with the primary and secondary windings turned on according to the voltage input of the last meter connected directly to the installation voltage source.
RU2003138170/28A 2003-12-31 2003-12-31 Galvanic decoupling unit for group testing of shunt electricity meters RU2255347C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003138170/28A RU2255347C1 (en) 2003-12-31 2003-12-31 Galvanic decoupling unit for group testing of shunt electricity meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003138170/28A RU2255347C1 (en) 2003-12-31 2003-12-31 Galvanic decoupling unit for group testing of shunt electricity meters

Publications (2)

Publication Number Publication Date
RU2003138170A true RU2003138170A (en) 2005-06-10
RU2255347C1 RU2255347C1 (en) 2005-06-27

Family

ID=35834080

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003138170/28A RU2255347C1 (en) 2003-12-31 2003-12-31 Galvanic decoupling unit for group testing of shunt electricity meters

Country Status (1)

Country Link
RU (1) RU2255347C1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670295B1 (en) * 1990-12-07 1993-01-22 Schlumberger Ind Sa ELECTRICAL MEASURING DEVICE WITH DOUBLE CONNECTION CONFIGURATION.
RU2119676C1 (en) * 1996-07-08 1998-09-27 Иван Алексеевич Нефедьев Device for verification of measuring current transformers
FR2827388B1 (en) * 2001-07-10 2003-11-14 Alstom CIRCUIT FOR MEASURING THE HOMOPOLAR CURRENT OF A THREE-PHASE ELECTRIC CURRENT LINE

Also Published As

Publication number Publication date
RU2255347C1 (en) 2005-06-27

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20080101