SU604515A3 - Electrical machine with fault detecting device - Google Patents
Electrical machine with fault detecting deviceInfo
- Publication number
- SU604515A3 SU604515A3 SU731967066A SU1967066A SU604515A3 SU 604515 A3 SU604515 A3 SU 604515A3 SU 731967066 A SU731967066 A SU 731967066A SU 1967066 A SU1967066 A SU 1967066A SU 604515 A3 SU604515 A3 SU 604515A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rotor
- slots
- stator
- electrical machine
- detecting device
- Prior art date
Links
Description
прерывател 5. Обмотки 1 и 2 уложены в тех же пазах статора, что и рабоча обмотка 6.chopper 5. Winding 1 and 2 are laid in the same grooves of the stator as the working winding 6.
В обмотках 1 и 2 наведено синусоидальное напр жение, частота основной гармонической которого равна частоте питающей сети, и гармонические составл ющие напр жени от зубчатости ротора (фиг. 3, 4). Обмотки 1, 2 соединены последовательно-встречно, при этом основные гармонические напр жени обмоток вычитаютс .In windings 1 and 2, a sinusoidal voltage is induced, the main harmonic frequency of which is equal to the mains frequency, and the harmonic components of the rotor serration (Fig. 3, 4). The windings 1, 2 are connected in series to each other, the main harmonic voltages of the windings being subtracted.
В результате на вход индикатора подаетс напр жение, форма которого в виде осциллограммы дл четного числа пазов ротора показана на фиг. 5, а дл нечетного числа пазов ротора - на фиг. 6.As a result, a voltage is applied to the input of the indicator, the shape of which in the form of an oscillogram for an even number of rotor slots is shown in FIG. 5, and for an odd number of rotor slots, in FIG. 6
При изменении воздушного зазора напр жение на входе индикатора измен етс (фиг. 7) По показанию индикатора можно судить о величине отклонени воздушного зазора, например из-за истирани подшипников.When the air gap changes, the voltage at the indicator input changes (Fig. 7). The indicator indicates the amount of deviation of the air gap, for example, due to the abrasion of the bearings.
Электрические машины, вк;1ючаюшие в свою схему детекторное устройство, могут быть испытаны на годность после сборки перед отгрузкой дл проверки соответстви техническим требовани м.Electrical machines, including a detector device in their circuit, can be tested for suitability after assembly prior to shipment to verify compliance with technical requirements.
Эксплуатаци и обслуживание таких машин упрощены, так как износ подшипников может быть обнаружен на более ранней стадии.The operation and maintenance of such machines is simplified, since bearing wear can be detected at an earlier stage.
Поскольку обнаруживающие или чувствительные элементы в предложенной машине размещены внутри пазов статора вместе с главными обмотками, не требуютс дополнительное пространство дл установки, раздельна доводка и сборка, т. е. процессы, которые могут вли ть на точность работы машины.Since the detecting or sensing elements in the proposed machine are placed inside the stator slots along with the main windings, no additional installation space is required, separate adjustment and assembly, i.e., processes that may affect the accuracy of the machine.
Предложенна машина может быть использована при защите закрытых двигателей, например в закрытом электронасосном узле, и способна обнаруживать ненормальное вращение двигател , вызванное попаданием в воздущный зазор посторонних материалов, и деформацию или расширение корпуса в дополнение к исти.ранию подшипника. Возможно использование портативного индикатора дл считывани выходного сигнала детектора с подсоединенных клемм в клеммной коробке непосредственно на месте установки машины. Предложенна мащина может быть применена к электромоторам и генераторам переменного и посто нного токов, имеющим сердачник возбуждени . В этом случае обмотки устройства могут быть расположены напротив магнитного воздушного зазора сердечника возбуждени .The proposed machine can be used to protect closed engines, for example, in a closed electric pumping unit, and is able to detect abnormal rotation of the engine caused by ingress of foreign material into the air gap, and deformation or expansion of the housing in addition to the worn bearing. It is possible to use a portable indicator to read the detector output signal from the connected terminals in the terminal box directly at the installation site of the machine. The proposed mask can be applied to electric motors and alternating and direct current generators having an excitation card. In this case, the windings of the device can be located opposite the magnetic air gap of the excitation core.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47101731A JPS5854580B2 (en) | 1972-10-11 | 1972-10-11 | Kaitendenkiuntenkanshisouchi |
Publications (1)
Publication Number | Publication Date |
---|---|
SU604515A3 true SU604515A3 (en) | 1978-04-25 |
Family
ID=14308404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU731967066A SU604515A3 (en) | 1972-10-11 | 1973-10-10 | Electrical machine with fault detecting device |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5854580B2 (en) |
SU (1) | SU604515A3 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4011489A (en) * | 1974-11-20 | 1977-03-08 | General Electric Company | Apparatus for regulating magnetic flux in an AC motor |
JPS6052654B2 (en) * | 1976-04-28 | 1985-11-20 | 株式会社安川電機 | Bearing wear detection device for AC rotating electric machines |
JPS5332322A (en) * | 1976-09-07 | 1978-03-27 | Mitsubishi Electric Corp | Field current measuring device of brushless synchronous machine |
JPS5332323A (en) * | 1976-09-07 | 1978-03-27 | Mitsubishi Electric Corp | Magnetic field part supervisory device of brushless synchronous machine |
JPS5332301A (en) * | 1976-09-07 | 1978-03-27 | Mitsubishi Electric Corp | Abnormality detector for rotor connecting conductor |
US4136312A (en) * | 1976-12-30 | 1979-01-23 | Westinghouse Electric Corp. | Method and apparatus for detection of rotor faults in dynamoelectric machines |
JPS53101201U (en) * | 1977-01-20 | 1978-08-16 | ||
JPS5485302U (en) * | 1977-11-30 | 1979-06-16 | ||
JPS5886806A (en) * | 1981-11-16 | 1983-05-24 | Japanese National Railways<Jnr> | Detector for trouble of linear motor |
JPH01308143A (en) * | 1988-06-03 | 1989-12-12 | Teikoku Denki Seisakusho:Kk | Operation monitor for canned motor |
JPH08191556A (en) * | 1995-01-10 | 1996-07-23 | Toshiba Corp | Rotor coil end monitor |
JP3504424B2 (en) * | 1996-02-26 | 2004-03-08 | 株式会社荏原製作所 | Bearing wear detector for induction motors |
-
1972
- 1972-10-11 JP JP47101731A patent/JPS5854580B2/en not_active Expired
-
1973
- 1973-10-10 SU SU731967066A patent/SU604515A3/en active
Also Published As
Publication number | Publication date |
---|---|
JPS4959201A (en) | 1974-06-08 |
JPS5854580B2 (en) | 1983-12-05 |
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