SU604515A3 - Electrical machine with fault detecting device - Google Patents

Electrical machine with fault detecting device

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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
Application number
SU731967066A
Other languages
Russian (ru)
Inventor
Сато Тепуя
Като Осаму
Саито Хисаси
Original Assignee
Кабусики Кайся Тейкоку Денки Сейсакусе, (Фирма)
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 Кабусики Кайся Тейкоку Денки Сейсакусе, (Фирма) filed Critical Кабусики Кайся Тейкоку Денки Сейсакусе, (Фирма)
Application granted granted Critical
Publication of SU604515A3 publication Critical patent/SU604515A3/en

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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)

1.Электрическа  машина с устройством дл  обнаружени  неисправностей, содержаща  статор и ротор, выполненные в виде шихтованных магнитопроводов с пазами, в которые уложены обмотки, причем в пазы магнитопровода статора уложена также измерительна  обмотка, подключенна  к измерителю напр жени , отличающа с  тем, что, с целью повышени  точности обнаружени  неисправностей,1. An electrical machine with a device for detecting faults, comprising a stator and a rotor, made in the form of laminated magnetic cores with grooves in which the windings are laid, and a measuring winding connected to a voltage meter, which is connected to the slots of the stator magnetic circuit in order to improve the accuracy of fault detection, измерительна  обмотка выполнена в виде двух катушек, смещенных одна относительно другой на величину, полюсного делени  обмотки статора и соединенных последовательно-встречно.The measuring winding is made in the form of two coils displaced one relative to the other by the magnitude of the pole division of the stator winding and connected in series-counter. 2.Машина по п. 1, отличающа с  тем, что2. The machine according to claim 1, characterized in that число пазов ротора - нечетное.the number of rotor slots is odd. 3. Машина по п. 1, отличающа с  тем, что число пазов ротора четное.3. Machine according to claim 1, characterized in that the number of slots of the rotor is even. Источники информации, прин тые во внимание при экспертизе:Sources of information taken into account in the examination: 1.Авторское свидетельство СССР № 445100, кл. Н 02 К 7/04, 1972.1. USSR Author's Certificate No. 445100, cl. H 02 K 7/04, 1972. 2.Electrical Times № 3493, 1958, с. 613- 617.2.Electrical Times No. 3493, 1958, p. 613-617. WW 2ZOV)2ZOV) I- gA I I- gA I 0,20.2 «Л ФигЛ"L ffl 0,60.6 a.Sa.S 1.01.0
SU731967066A 1972-10-11 1973-10-10 Electrical machine with fault detecting device SU604515A3 (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS4959201A (en) 1974-06-08
JPS5854580B2 (en) 1983-12-05

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