Title: Method of determining the displacement angle of an electric motor and means for effecting same

Abstract: The method of the present invention consists in passing a pulsating current through two series-connected working phase windings of the stator of an electric motor and determining the relationship between the displacement angle and phase voltages and line voltages across said windings. This relationship is then used for determining the displacement angle of the electric motor which in this case is a synchronous reluctance motor operating in braking duty under conditions where there is no access to the motor shaft. Normally, this is the case with motors employed as an actuating means in the control and protection systems of nuclear reactors. The device for carrying out the above method comprises a voltage comparison unit and an indicating instrument.

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Inventors: Kutsevalov, Vitaly Mikhailovich (ULIT, SA)
Kanter, Valery Konstantinovich
Kornilov, Georgy Sazonovich (ULIT, SA)
Ozols, Vitaly Ivanovich (ULIT, SA)
Frolov, Vladimir Ivanovich (ULIT, SA)
Glushkov, Alexandr Timofeevich (ULIT, SA)
Leontiev, Igor Vitalievich (ULIT, SA)
Elizarov, Vladislav Alexandrovich (ULIT, SA)
Bobylev, Jury (PROSPE, KT)

Application Number: 527262
Filing Date: 1974-11-26
Publication_date: 1976-09-14
Assignee:
Primary Class(es): 324/772 318/490, 376/228, 376/258, 976/DIG125
Other Classes:
US Patent Ref:
Other Refs: 178,410

Feb, 1966	SU

Primary Examiner: Rolinec, R. V.
Assistant Examiner: Karlsen, Ernest F.
Attorney: Holman & Stern