JPS5510567A - Test device for meter transformer - Google Patents
Test device for meter transformerInfo
- 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
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
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
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)
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 | Method for measuring voltage-dividing error |
CN111289942A (en) * | 2020-01-21 | 2020-06-16 | 北京市腾河电子技术有限公司 | Method and system for analyzing error of measurement domain based on single load jump and storage medium |
-
1978
- 1978-07-11 JP JP8424778A patent/JPS5510567A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015155870A (en) * | 2014-02-21 | 2015-08-27 | 株式会社東芝 | Method for measuring voltage-dividing 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 and system for analyzing error of measurement domain based on single load jump and storage medium |
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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