SU917104A1 - Device for measuring direct and pulse currents - Google Patents
Device for measuring direct and pulse currents Download PDFInfo
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- SU917104A1 SU917104A1 SU802870033A SU2870033A SU917104A1 SU 917104 A1 SU917104 A1 SU 917104A1 SU 802870033 A SU802870033 A SU 802870033A SU 2870033 A SU2870033 A SU 2870033A SU 917104 A1 SU917104 A1 SU 917104A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- output
- current
- series
- measuring direct
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ПОСТОЯННОГО54) DEVICE FOR MEASURING CONSTANT
И ИМПУЛЬСНОГО токовAnd impulse currents
1 изобретение относитс к электроIизмерительной технике и может быть использовано дл измерени посто нного и импульсного токов как в одном токопроводе, так и полного тока нескольких токопроводов. Преимуществениа область использовани - бесконтактные измерени больших токов в электрофизических и электротехнических установках.1 The invention relates to electrical measuring technique and can be used to measure direct and pulsed currents in both a single conductor and the total current of several conductors. The main field of use is contactless measurement of large currents in electrophysical and electrical installations.
Известно устройство дл измерени посто нного тока - бесконтактный магнитный компаратор тока с неполным уравновешиванием, в котором ток уравновешивающей обмотки создаетс пезавкснм:1м вспомогательным источником посто нного тока, а неуравновешенна часть магнитодвижущей силы (МДС), создаваемой в магнитопроводе компаратора измер еKUM током, измер етс измерительным трансформатором посто нного тока (ИТПТ) 1.A device for measuring direct current is known as a non-contact magnetic current comparator with incomplete balancing, in which the current of the balancing winding is created by a pezavksm: 1m auxiliary DC source, and an unbalanced part of the magnetomotive force (MDS) created in the comparator magnetic circuit of the eKUM magnetomotive force measured by the eKUM magnetic field of the comparator, created in the comparator magnetic circuit of an eKUM meter. direct current measuring transformer (ITPT) 1.
Устройство обеспечивает высокую точность измерений, однако процесс измерений не может быть, автоматическим . Этот недостаток ограничивает область применени устройства измерени ми посто нного тока в лабораторных услови х.The device provides high measurement accuracy, but the measurement process cannot be automatic. This disadvantage limits the field of application of the device to direct current measurements under laboratory conditions.
Наиболее близким к предлагаемому вл етс устройство, содержащее бесконтактный измеритель разности магнитодвижущих .сил,, расположенных на его магнитопроводе измерительной обмотки, соединенной последовательно с токопроводом Цепи измер емого тока, и уравновешивающей обмотки, соединенной последовательно с ответ10 вителем указанно1 о токопровода. Данное устройство, работает на принципе магнитного неравенства (2.The closest to the present invention is a device containing a contactless measuring device for the difference of magnetomotive force, located on its magnetic core of the measuring winding connected in series with the conductor of the measured current circuit, and the balancing winding connected in series with the response of the specified 10 current conductor. This device operates on the principle of magnetic inequality (2.
Недостатком данного устройства вл етс невысока точность измере15 ни из-за нестабильности сопротивлений обеих ветвей измерител , определ ющих распределение тока в цеп х измерительной и уравновешивающей обмотках.The disadvantage of this device is the low accuracy of the measurement, 15 due to the instability of the resistances of both branches of the meter, which determine the current distribution in the measuring and balancing windings.
2020
Цель изобретени - повьлиение точности измерений.The purpose of the invention is to increase the measurement accuracy.
Указанна цель достигаетс тем, что в устройство дл измерени посто нного и импульсного токов, со25 держащее бесконтактный измеритель разности магнитодвижущих сил измерив тельной обмотки, соединенной последовательно с токопроводом цепи измер емого тока, и уравновешивающей This goal is achieved by the fact that in a device for measuring direct and pulsed currents, containing a non-contact measuring device of the difference of the magnetomotive forces of the measuring winding, connected in series with the conductor of the measured current, and balancing
30 обмотки, соединенной последователь30 winding connected follower
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802870033A SU917104A1 (en) | 1980-01-18 | 1980-01-18 | Device for measuring direct and pulse currents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802870033A SU917104A1 (en) | 1980-01-18 | 1980-01-18 | Device for measuring direct and pulse currents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU917104A1 true SU917104A1 (en) | 1982-03-30 |
Family
ID=20872388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802870033A SU917104A1 (en) | 1980-01-18 | 1980-01-18 | Device for measuring direct and pulse currents |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU917104A1 (en) |
-
1980
- 1980-01-18 SU SU802870033A patent/SU917104A1/en active
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