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 machine

Info

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
Application number
SU2176499A
Other languages
Russian (ru)
Inventor
Леонид Илларионович Достов
Original Assignee
Предприятие П/Я В-8672
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я В-8672 filed Critical Предприятие П/Я В-8672
Priority to SU2176499A priority Critical patent/SU542107A1/en
Application granted granted Critical
Publication of SU542107A1 publication Critical patent/SU542107A1/en

Links

Landscapes

  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (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)

Формула изобретени Invention Formula Устройство дл  измерени  температуры обмотки электрической машины, содержащее источник посто нного тока, источник переменного напр жени , термодатчик, вьшолненный в виде одной из обмоток электрической мапшны, трансформатор посто нного тока, снабженный обмоткой коррекции , котора  подключена к выходу вторичной обмотки трансформатора переменного тока, снабженного размагничивающей обмоткой, а вторичные обмотки трансформатора посто нного тока через вьшр мительное устройство подключены к измерите прибору, отличающеес  тем, что, с целью увеличени  точности измерени , термодатчик соединен с одним выходом источника посто нного тока через общую точку соединени  фазных обмоток источника переменного напр жени , а с его другим выходом через размагничивающую обмотку трансформатора переменного тока и общую точку соединени  фазных обмоток электрической машины.A device for measuring the temperature of a winding of an electric machine, containing a DC source, an alternating voltage source, a thermal sensor, implemented as one of the electrical windings, a DC transformer equipped with a correction winding, which is connected to the output of the secondary winding of an AC transformer, equipped with demagnetizing winding, and the secondary windings of the transformer direct current are connected to measure the device, characterized by the fact that In order to increase the measurement accuracy, the temperature sensor is connected to one output of a direct current source through a common connection point of the phase windings of an alternating voltage source, and its other output through an demagnetizing winding of an AC transformer and a common connection point of the windings of an electric machine.
SU2176499A 1975-09-18 1975-09-18 Device for measuring the temperature of the winding of an electric machine SU542107A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
US4278940A (en) Means for automatically compensating DC magnetization in a transformer
SU542107A1 (en) Device for measuring the temperature of the winding of an electric machine
SU491843A1 (en) Device for measuring the temperature of the winding of electrical machines
SU815525A1 (en) Device for measuring winding temperature of an electric machines mainly of ac machines
US3430142A (en) Direct current measurement apparatus
RU2004108052A (en) ELECTRONIC ELECTRICITY METER
SU756227A1 (en) Device for measuring electric machine winding temperature
SU75577A1 (en) The method of measuring currents and voltages
SU127745A1 (en) Method of measuring variable and constant current component in bearings of large electric machines
SU1160319A1 (en) D.c.tong-test instrument
SU1246015A1 (en) Permanent-magnet electronic current-to-voltage converter
SU609163A1 (en) Arrangement for measuring overheating of winding of ac machine under load by varying dc resistance of the winding
SU1170360A1 (en) Device for measuring heavy direct currents
SU987421A1 (en) Electrical machine winding temperature measuring device
SU470763A1 (en) Device for measuring inductive complex resistances
SU1231468A1 (en) Direct current meter
SU1467523A1 (en) Device for measuring overheating of three-phase electric machine winding
SU488068A1 (en) Calorimetric Flowmeter
SU454486A1 (en) Device for measuring direct current
SU48797A1 (en) Device for measuring electrical resistance
SU414535A1 (en)
SU667906A1 (en) Ac voltage-to-dc voltage mean value measuring converter
SU972264A1 (en) Device for measuring temperature of dc electrical machine winding
SU1237900A1 (en) Device for measuring thickness of metal tape
SU115517A1 (en) Device for measuring the resistance of the windings of electrical apparatus connected to an AC circuit