SU542107A1 - Device for measuring the temperature of the winding of an electric machine - Google Patents
Device for measuring the temperature of the winding of an electric machineInfo
- Publication number
- SU542107A1 SU542107A1 SU2176499A SU2176499A SU542107A1 SU 542107 A1 SU542107 A1 SU 542107A1 SU 2176499 A SU2176499 A SU 2176499A SU 2176499 A SU2176499 A SU 2176499A SU 542107 A1 SU542107 A1 SU 542107A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- winding
- transformer
- electric machine
- temperature
- measuring
- Prior art date
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ТЕМПЕРАТУРЫ ОБМОТКИ ЭЛЕКТРИЧЕСКОЙ МАШИНЫ(54) DEVICE FOR MEASURING THE TEMPERATURE OF WINDING ELECTRIC MACHINE
Устройство работает следующим образом. От источника посто нного тока 11 подаетс ток к фазной обмотке 3, служащей термодатчиком, через общую точку соединени фазных обмоток 4 источника переменного напр жени , первичную обмотку трансформатора 6 посто нного тока первичную обмотку трансформатора 5 переменного тока и его размагничивающую обмотку 12. Этот ток состоит из двух частей: из переменного тока, питающего электрическую машину, и посто нного тока, генерируемого источником 11. Измерение величины по сто нного тока, протекающего через фазную обмотку 3, осуществл етс трансформатором 6, вторичные обмотки которого через выпр мительное устройство 9 соединены с измерительным прибором 10. Обмотка коррекщ1И 7 трансформатора 6 компенсирует переменную составл ющую магнитного потока в сердечниках этого трансформатора, обусловленную прохождением по его первичной обмотке переменного тока, питающего фазную обмотку 3 электрической мащины, так как величина тока вторичной обмотки трансфооматора 5 пропорциональна току нагрузки.The device works as follows. From the DC source 11, current is supplied to the phase winding 3 serving as a thermal sensor through the common connection point of the phase windings 4 of the alternating voltage source, the primary winding of the DC transformer 6 the primary winding of the AC transformer 5 and its demagnetizing winding 12. This current consists from two parts: from the alternating current supplying the electric machine and the direct current generated by the source 11. The measurement of the value of the steady-state current flowing through the phase winding 3 is transformed The torus 6, the secondary windings of which through the rectifying device 9 are connected to the measuring device 10. The winding of the offset 1 and 7 of the transformer 6 compensates for the variable component of the magnetic flux in the cores of this transformer, due to the passage through the primary winding of the alternating current supplying the phase winding 3 of the electric circuit, as the current value of the secondary winding of the transformer 5 is proportional to the load current.
Требуема точность измерени температуры обмотки 3 обеспечиваетс полной компенсацией переменной составл ющей магинтного потока в сердечниках трансформатора 6 с сохранением пропорциональности тока вторичной обмотки трансформатора 5. Размагничивающа обмотка 12 трансформатора The required accuracy of measuring the temperature of the winding 3 is provided by the full compensation of the variable component of the flux core in the transformer cores 6 while maintaining the proportionality of the current of the secondary winding of the transformer 5. Transformer demagnetizing winding 12
5, содержаща число витков, равное числу витков первичной обмотки этого трансформатора, обеспечивает компенсацию посто нной составл ющей магнитного потока, обусловленную прохождением по первичной обмотке трансформатора 5 тока, генерируемого источником 11.5, which contains the number of turns equal to the number of turns of the primary winding of this transformer, provides compensation for the constant component of the magnetic flux caused by the current generated by the source 11 passing through the primary winding of the transformer 5.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2176499A SU542107A1 (en) | 1975-09-18 | 1975-09-18 | Device for measuring the temperature of the winding of an electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2176499A SU542107A1 (en) | 1975-09-18 | 1975-09-18 | Device for measuring the temperature of the winding of an electric machine |
Publications (1)
Publication Number | Publication Date |
---|---|
SU542107A1 true SU542107A1 (en) | 1977-01-05 |
Family
ID=20633079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2176499A SU542107A1 (en) | 1975-09-18 | 1975-09-18 | Device for measuring the temperature of the winding of an electric machine |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU542107A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4799046A (en) * | 1984-07-06 | 1989-01-17 | Leybold-Heraeus Gmbh | Method and circuit for detecting and monitoring the temperature of a winding |
-
1975
- 1975-09-18 SU SU2176499A patent/SU542107A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4799046A (en) * | 1984-07-06 | 1989-01-17 | Leybold-Heraeus Gmbh | Method and circuit for detecting and monitoring the temperature of a winding |
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