SU783723A1 - Apparatus for testing current transformers in transition modes - Google Patents
Apparatus for testing current transformers in transition modes Download PDFInfo
- Publication number
- SU783723A1 SU783723A1 SU782608062A SU2608062A SU783723A1 SU 783723 A1 SU783723 A1 SU 783723A1 SU 782608062 A SU782608062 A SU 782608062A SU 2608062 A SU2608062 A SU 2608062A SU 783723 A1 SU783723 A1 SU 783723A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- current
- series
- current transformers
- reactor
- testing current
- Prior art date
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
II
Изобретение относитс к электроизмерительной технике и может быть использовано дл определени погрешностей трансформаторов тока в переходных режимах при аттестационных или приемно-сдаточныХ испытани х на заводах-изготовител х или испытательных центрах.The invention relates to electrical measuring equipment and can be used to determine the errors of current transformers in transient conditions at certification or acceptance tests at manufacturing plants or test centers.
Известны устройства, содержащие источник питани переменного тока, силовой трансформатор, источник питани посто нного тока, дроссель и блоксзапоминани 1 Devices are known that contain an AC power supply, a power transformer, a DC power supply, a choke, and a block memory.
Недостаток известных устройств заключаетс в низкой точности измерени токов.A disadvantage of the known devices is the low accuracy of the current measurement.
Наиболее близким по технической сущности к изобретению вл етс устройство дл испытани трансформаторов тока в переходных режимах, содержащее формирователь тока рабочей частоты, резистор, датчик тока, нагрузку и амперметры 2,The closest in technical essence to the invention is a device for testing current transformers in transient modes, comprising an operating frequency current driver, a resistor, a current sensor, a load, and ammeters 2,
Недостаток этого устройства также заключаетс в низкой точности измерений токов.The disadvantage of this device also lies in the low accuracy of current measurements.
Целью изобретени вл етс повьаиение точности измерени токов.The aim of the invention is to improve the accuracy of current measurement.
Эта цель достигаемс тем, что в известное устройство, содержащееThis goal is achieved by the fact that in a known device containing
-формирователь тока рабочей частоты , последовательно соединенный с резистором и первичными обмотками .датчика тока и испытуемого трансформатора тока, во вторичную цепь которого включены последовательно соединенные нагрузки и первый амперметр , паргшлельно которому включены последовательно соединенные - current operating frequency generator connected in series with a resistor and primary windings. a current sensor and a current transformer under test, the secondary circuit of which includes series-connected loads and the first ammeter, which is connected in series with
to вторична обмотка датчика тока и второй амперметр, введены формирователь посто нного тока и реактор, причем последовательно соединенные формирователь посто нного тока и to the secondary winding of the current sensor and the second ammeter, a direct current driver and a reactor are inserted, with a series direct current driver and
15 реактор включены параллельно первичной обмотке испытуемого трансформатора .15 reactor connected in parallel with the primary winding of the transformer under test.
На чертеже представлена принципиальна схема устройства.The drawing shows a schematic diagram of the device.
Устройство содержит формирователь 1 тока рабочей частоты, резистор 2, датчик 3 тока с первичной 4 и вторичной 5 обмоткг1ми, амперметры 6 и 25 7, формирователь 8 посто нного тока, реактор 9, нагрузку 10 и испытуемый трансформатор 11 тока с первичной 12 и вторичной 13 обмотками.The device contains an operating frequency driver 1, a resistor 2, a current sensor 3 with primary 4 and secondary 5 windings, ammeters 6 and 25 7, a constant current driver 8, reactor 9, load 10 and the test transformer 11 with primary 12 and secondary 13 windings.
Устройство работает следующим 30 образом.The device works in the following 30 ways.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782608062A SU783723A1 (en) | 1978-04-24 | 1978-04-24 | Apparatus for testing current transformers in transition modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782608062A SU783723A1 (en) | 1978-04-24 | 1978-04-24 | Apparatus for testing current transformers in transition modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU783723A1 true SU783723A1 (en) | 1980-11-30 |
Family
ID=20761301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782608062A SU783723A1 (en) | 1978-04-24 | 1978-04-24 | Apparatus for testing current transformers in transition modes |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU783723A1 (en) |
-
1978
- 1978-04-24 SU SU782608062A patent/SU783723A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| van den Brom et al. | Characterization of DC current sensors with AC distortion for railway applications | |
| KR100206655B1 (en) | Portable current transformer tester | |
| Cataliotti et al. | Characterization and error compensation of a Rogowski coil in the presence of harmonics | |
| SU783723A1 (en) | Apparatus for testing current transformers in transition modes | |
| JPS55155258A (en) | Device for measuring characteristic of gapless arrester | |
| CN207396708U (en) | 110kV polarity testing device of current transformer | |
| Bedell | History of AC wave form, its determination and standardization | |
| JPS5524640A (en) | Measurement of impedance and load loss of there-winding transformer | |
| CN203324465U (en) | Device using voltage method to measure ratio of transformation of current transformer | |
| SU690413A1 (en) | Device for measuring error deviations of current transformers in transient modes | |
| CN204613302U (en) | Multifunctional electric equipment test tester | |
| Malewski et al. | A comparison of instrumentation for measuring the losses of large power transformers | |
| DE1010161B (en) | Device for the optional implementation of continuity and insulation measurements on electrical lines and devices | |
| Cox et al. | Harmonic response tests on distribution circuit potential transformers | |
| SU552571A1 (en) | Apparatus for testing current transformers in transient conditions | |
| SU788032A1 (en) | Method of measuring resistance of three-phase transformer windings | |
| SU847229A1 (en) | Device fo measuring voltage curve shape coefficient | |
| CN219417621U (en) | Transformer test fixture for single-phase intelligent ammeter | |
| CN221960233U (en) | Test system for measuring DC magnetic bias current of AC transformer | |
| CN212364560U (en) | Instrument for testing comprehensive characteristics of mutual inductor | |
| JPH0545983Y2 (en) | ||
| SU1325390A1 (en) | Device for measuring reversal-of-magnetization losses | |
| SU454507A1 (en) | Device for measuring complex resistances | |
| GB1278616A (en) | Apparatus for testing installed electricity meters | |
| SU94699A1 (en) | Electrical measuring device |