JPS5570748A - Voltage measuring unit of operation compensation type - Google Patents

Voltage measuring unit of operation compensation type

Info

Publication number
JPS5570748A
JPS5570748A JP14589678A JP14589678A JPS5570748A JP S5570748 A JPS5570748 A JP S5570748A JP 14589678 A JP14589678 A JP 14589678A JP 14589678 A JP14589678 A JP 14589678A JP S5570748 A JPS5570748 A JP S5570748A
Authority
JP
Japan
Prior art keywords
voltage
phase
contact
electrodes
output
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP14589678A
Other languages
Japanese (ja)
Inventor
Osayoshi Imamura
Yoshiaki Ida
Masaru Yasuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14589678A priority Critical patent/JPS5570748A/en
Publication of JPS5570748A publication Critical patent/JPS5570748A/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To enable highly accurate measurement, with non-contact and being not subject to the other phase, by dividing the voltage through the provision of capacitor between the electrostatic coupling electrode no contact with the conductor of each phase and ground, and processing the output with the matrix circuit.
CONSTITUTION: The conductors 1, 2, 3 of each phase are provided with the electrostatic coupling electrodes 4, 5, 6 in non-contact. Capacitors 7, 8, 9 are provided between the electrodes and ground respectively. The voltage dividers 10, 11, 12 are constituted with the static capacitance of the capacitors 7, 8, 9 and the electrodes 4, 5, 6. The output of voltage divider is inputted to the operational amplifiers 13W14 via the operational resistors 13aW13d, 14aW14d, and 15aW15d, and this output drives the voltage indicators 16, 17, 18 indicating the voltage of each phase. Further, the multi-dimension matrix operation circuit 20 is constituted with the operational amplifiers 13W14 and voltage indicators 16, 17, 18. Highly accurate measurement can be made without being subjected to other phase.
COPYRIGHT: (C)1980,JPO&Japio
JP14589678A 1978-11-22 1978-11-22 Voltage measuring unit of operation compensation type Pending JPS5570748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14589678A JPS5570748A (en) 1978-11-22 1978-11-22 Voltage measuring unit of operation compensation type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14589678A JPS5570748A (en) 1978-11-22 1978-11-22 Voltage measuring unit of operation compensation type

Publications (1)

Publication Number Publication Date
JPS5570748A true JPS5570748A (en) 1980-05-28

Family

ID=15395549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14589678A Pending JPS5570748A (en) 1978-11-22 1978-11-22 Voltage measuring unit of operation compensation type

Country Status (1)

Country Link
JP (1) JPS5570748A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261761A (en) * 2009-04-30 2010-11-18 Japan Radio Co Ltd Output voltage measuring device
JP2015219235A (en) * 2014-05-13 2015-12-07 ゼネラル・エレクトリック・カンパニイ Calibration methods for voltage sensing devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261761A (en) * 2009-04-30 2010-11-18 Japan Radio Co Ltd Output voltage measuring device
JP2015219235A (en) * 2014-05-13 2015-12-07 ゼネラル・エレクトリック・カンパニイ Calibration methods for voltage sensing devices

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