SU993171A1 - Method of locating short-circuited turns in inductive components - Google Patents
Method of locating short-circuited turns in inductive components Download PDFInfo
- Publication number
- SU993171A1 SU993171A1 SU813280867A SU3280867A SU993171A1 SU 993171 A1 SU993171 A1 SU 993171A1 SU 813280867 A SU813280867 A SU 813280867A SU 3280867 A SU3280867 A SU 3280867A SU 993171 A1 SU993171 A1 SU 993171A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- short
- circuited
- inductive components
- circuited turns
- turns
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
Изобретение относитс к электроизмерительной технике и может быть использовано дл обнаружени короткозамкнутых витков в индуктивных элементах.The invention relates to electrical measuring equipment and can be used to detect short-circuited turns in inductive elements.
Известен способ обнаружени короткозамкнутых витков в индуктивных элементах путем подачи на катушку импульсов напр жени (тока ),измерени значени потребл емого из сети тока в начальный момент чарез 0,05 с от момента включени и установившегос тока - через 1-5 с и определени наличи короткозсомкнутых витков по разности токов. Способ основан на использовании эффекта уменьшени потока, создаваемого короткозамкнутым витком , при увеличении его сопротивлени от нагревани током короткозамкнутого замыкани There is a known method for detecting short-circuited turns in inductive elements by applying voltage (current) pulses to a coil, measuring the current consumed from the mains at the initial time of 0.05 s from the moment of switching on and steady current through 1-5 s and determining the presence of short-circuited turns on the difference of currents. The method is based on using the effect of reducing the flow created by a short-circuited coil, while increasing its resistance from heating by the short-circuited current.
Недостатком способа вл етс недостоверность обнаружени короткозамкнутых витков в индуктивных элементах магнитрпровода и невозможность прогнозировани по влени короткозамкнутого витка при эксплуатации . провер емого элемента из-за критичности режима отсчета начального момента.The disadvantage of this method is the unreliability of the detection of short-circuited coils in the inductive elements of the magnetic core and the inability to predict the appearance of a short-circuited coil during operation. of the element being checked due to the criticality of the reference mode of the initial moment.
Наиболее близким по технической . сущности к предлагаемому вл етс способ обнаружени к&роткозамкнутых витков в индуктивных элементах путем подачи тока в элемент периодического размыкани цепи тока, что эквивалентно подаче последовательности импульсов тока и оценке наличи корот козамкнутых витков на экране элек10 тронно-лучевой трубки (ЭЛТ) по амплитуде и длительности затухающих колебаний Г2.. The closest technical. The essence of the invention is a method for detecting & shorted coils in inductive elements by applying current to the element of periodic opening of the current circuit, which is equivalent to applying a sequence of current pulses and evaluating the presence of short-closed turns on the screen of an electron-beam tube (CRT) in amplitude and duration damped oscillations r2 ..
Недостатком известного способа в15 л етс недостаточна достоверность обнаружени короткозамкнутых витков из-за трудности разделени изменений амплитуды и длительности затухающих колебаний или от наличи корот20 козамкнутых витков, или от наличи значительной собственной емкости эле мента. Кроме того,способ позвол ет зафиксировать голько вно выраженные,гальванически замкнутые короткозамкну A disadvantage of the known method is the lack of reliability of detecting short-circuited coils due to the difficulty of separating the changes in the amplitude and duration of damped oscillations or from the presence of short-closed loops or from the presence of a significant intrinsic capacitance of the element. In addition, the method makes it possible to fix the golko expressly expressed, galvanically closed short-circuit
25 тые витки без вы влени ослабленной межвитковой изол ции.25 turns without revealing a weakened inter-turn insulation.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU813280867A SU993171A1 (en) | 1981-04-27 | 1981-04-27 | Method of locating short-circuited turns in inductive components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU813280867A SU993171A1 (en) | 1981-04-27 | 1981-04-27 | Method of locating short-circuited turns in inductive components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU993171A1 true SU993171A1 (en) | 1983-01-30 |
Family
ID=20955261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU813280867A SU993171A1 (en) | 1981-04-27 | 1981-04-27 | Method of locating short-circuited turns in inductive components |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU993171A1 (en) |
-
1981
- 1981-04-27 SU SU813280867A patent/SU993171A1/en active
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