SU1467523A1 - Device for measuring overheating of three-phase electric machine winding - Google Patents
Device for measuring overheating of three-phase electric machine winding Download PDFInfo
- Publication number
- SU1467523A1 SU1467523A1 SU874216810A SU4216810A SU1467523A1 SU 1467523 A1 SU1467523 A1 SU 1467523A1 SU 874216810 A SU874216810 A SU 874216810A SU 4216810 A SU4216810 A SU 4216810A SU 1467523 A1 SU1467523 A1 SU 1467523A1
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- USSR - Soviet Union
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- phase
- electric machine
- source
- voltmeter
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Abstract
Изобретение относитс к электротехнике . Целью изобретени вл етс повышение точности измерений путем пвфазного контрол превышени температуры обмоток электрической машины. Посто нный измерительный ток заводитс от источника посто нного тока 2 между фазами В и С электрической машины 14. Посто нное напр жение на фазе В измер етс вольтметром 7 путем подсоединени его между фазами А и В. Переменна составл юща от источника сети 13 в цепи источника посто нного тока и вольтметра компенснруетс с помощью компенсационных трансформаторов 1, 6 и подавл етс фильтрами 3, 8. Дл получени возможности непосредственно отсчета температуры обмотки в цепь вольтметра введен источник посто нного напр жени 9 с ключом 10. Дл установки посто нного измерительного тока введен эталонный резистор 4 и переменный резистор 5. Разделительные конденсаторы 11, 12 устанавливают утечку измерительного тока в сеть и обеспечивают эквипо- тенхдаальность по посто нному напр жению вывода фазы А и изолированной общей точки обмоток. 1 з.п. ф-лы, 2 ил. (ЛThe invention relates to electrical engineering. The aim of the invention is to improve the measurement accuracy by pvphase monitoring of the temperature rise of the windings of an electric machine. A constant measuring current is supplied from a DC source 2 between phases B and C of an electric machine 14. The DC voltage at phase B is measured by a voltmeter 7 by connecting it between phases A and B. The source voltage from the source 13 in the source circuit direct current and voltmeter is compensated by compensating transformers 1, 6 and is suppressed by filters 3, 8. To enable direct reading of the winding temperature, a constant voltage source 9 with key 1 is inserted into the voltmeter circuit. 0. For setting a constant measuring current, a reference resistor 4 and a variable resistor 5 are introduced. The separation capacitors 11, 12 establish the leakage of the measuring current into the network and ensure equipotential with constant voltage output of phase A and an isolated common point of the windings. 1 hp f-ly, 2 ill. (L
Description
Фие.2 Fie.2
Составитель В.НиканоровCompiled by V.Nikanorov
Редактор Н.Тупица Техред И.ВересEditor N. Tupitsa Tehred I. Veres
Заказ 1192/43 Тираж 711ПодписноеOrder 1192/43 Edition 711 Subscription
ВНИИПИ Государственного комитета по изобретени м и открыти м при ГКНТ СССР 113035, Москва, Ж-35, Раушска наб., д. 4/5VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
Корректор М.ДемчикProofreader M. Demchik
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874216810A SU1467523A1 (en) | 1987-03-30 | 1987-03-30 | Device for measuring overheating of three-phase electric machine winding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874216810A SU1467523A1 (en) | 1987-03-30 | 1987-03-30 | Device for measuring overheating of three-phase electric machine winding |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1467523A1 true SU1467523A1 (en) | 1989-03-23 |
Family
ID=21293439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874216810A SU1467523A1 (en) | 1987-03-30 | 1987-03-30 | Device for measuring overheating of three-phase electric machine winding |
Country Status (1)
Country | Link |
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SU (1) | SU1467523A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11898917B2 (en) * | 2020-08-31 | 2024-02-13 | Siemens Aktiengesellschaft | Method for monitoring a coil temperature |
-
1987
- 1987-03-30 SU SU874216810A patent/SU1467523A1/en active
Non-Patent Citations (1)
Title |
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Электрические машины и аппараты. Экспресс-информаци ВИНИТИ, , 1969. Измерение сопротивлени обмоток машин переменного тока непосред- ственно в процессе работы,с. 2,рис. 1, , Авторское свидетельство СССР 164063, кл. G 01 R 27/08, 1961. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11898917B2 (en) * | 2020-08-31 | 2024-02-13 | Siemens Aktiengesellschaft | Method for monitoring a coil temperature |
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