JPS5510567A - Test device for meter transformer - Google Patents

Test device for meter transformer

Info

Publication number
JPS5510567A
JPS5510567A JP8424778A JP8424778A JPS5510567A JP S5510567 A JPS5510567 A JP S5510567A JP 8424778 A JP8424778 A JP 8424778A JP 8424778 A JP8424778 A JP 8424778A JP S5510567 A JPS5510567 A JP S5510567A
Authority
JP
Japan
Prior art keywords
transformer
voltage
test device
vector
phase
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.)
Granted
Application number
JP8424778A
Other languages
Japanese (ja)
Other versions
JPS5757667B2 (en
Inventor
Hideo Kitagawa
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.)
Japan Electric Meters Inspection Corp JEMIC
Original Assignee
Japan Electric Meters Inspection Corp JEMIC
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 Japan Electric Meters Inspection Corp JEMIC filed Critical Japan Electric Meters Inspection Corp JEMIC
Priority to JP8424778A priority Critical patent/JPS5510567A/en
Publication of JPS5510567A publication Critical patent/JPS5510567A/en
Publication of JPS5757667B2 publication Critical patent/JPS5757667B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To obtain a test device for meter transformer which features a high controllability and high accuracy by counting the relative error and the phase angle by two pairs of reversible counters connecting to the D/A converters.
CONSTITUTION: The oscillation output of oscillators OSC1 and OSC2 are counted by reversible counters UD1 and UD2 so that the minimum swing may be secured for galvanometer G which is connected along with the secondary winding of error compensating transformer PTa connected between the secondary windings of standard transformer PTs and tested transformer PTx. As a result, vector voltage Vε of the same phase as the secondary voltage of PTs via D/A converters DA1 and DA2 to which the count value of UD1 and UD2 are applied is compounded through vector mixer MIX with vector voltage Vθ featuring the different phase by 90° from the secondary voltage of PTs via phase shifter PH. And balancing vector voltage ΔV is applied to the primary winding of PTa. As a result, the relative error and the phase angle are read out directly for PTa against PTs from the count value of UD1 and UD2, thus obtaining a test device for meter transformer featuring a high controllability and high accuracy.
COPYRIGHT: (C)1980,JPO&Japio
JP8424778A 1978-07-11 1978-07-11 Test device for meter transformer Granted JPS5510567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8424778A JPS5510567A (en) 1978-07-11 1978-07-11 Test device for meter transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8424778A JPS5510567A (en) 1978-07-11 1978-07-11 Test device for meter transformer

Publications (2)

Publication Number Publication Date
JPS5510567A true JPS5510567A (en) 1980-01-25
JPS5757667B2 JPS5757667B2 (en) 1982-12-06

Family

ID=13825126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8424778A Granted JPS5510567A (en) 1978-07-11 1978-07-11 Test device for meter transformer

Country Status (1)

Country Link
JP (1) JPS5510567A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142487A (en) * 2014-08-18 2014-11-12 国家电网公司 Electrified detecting device for tank type capacitor voltage transformer
JP2015155870A (en) * 2014-02-21 2015-08-27 株式会社東芝 Measurement method of partial pressure error
CN111289942A (en) * 2020-01-21 2020-06-16 北京市腾河电子技术有限公司 Method, system and storage medium for error analysis in measurement domain based on single load jump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015155870A (en) * 2014-02-21 2015-08-27 株式会社東芝 Measurement method of partial pressure error
CN104142487A (en) * 2014-08-18 2014-11-12 国家电网公司 Electrified detecting device for tank type capacitor voltage transformer
CN111289942A (en) * 2020-01-21 2020-06-16 北京市腾河电子技术有限公司 Method, system and storage medium for error analysis in measurement domain based on single load jump
US11947624B2 (en) 2020-01-21 2024-04-02 Beijing Tenhe Electronic Technology Co., Ltd. Method and system for analyzing error of measurement domain based on single load jump, and storage medium

Also Published As

Publication number Publication date
JPS5757667B2 (en) 1982-12-06

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