Results 251 to 260 of about 1,139,985 (300)

Telemetry in diagnosis of asynchronous motors

2015 IEEE 5th International Conference on Power Engineering, Energy and Electrical Drives (POWERENG), 2015
To improve operational reliability of electrical machines over a long period of time, the diagnostic tests should be performed. This justifies the monitoring of machines, particularly those which do not have the reserve at the workplace: the power generators, hoisting machines in mines, etc.
Adam Decner, Tomasz Jarek
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The cascade synchronous–asynchronous motor

2019 International Conference on Electrotechnical Complexes and Systems (ICOECS), 2019
This paper describes the mechanism and the principle of operation of a cascade asynchronous-synchronous motor. The history of their creation, and the main advantages are given. The analysis of operation of the cascade system under load is carried out, the scheme of substitution is given. It is determined that when the motor is under load the lag in the
Marina B. Gumerova, Natalya L. Babikova, Rustam I. Gareev   +2 more
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Energy-saving asynchronous motors

Russian Electrical Engineering, 2009
The results of activities on creating asynchronous motors with rotor cast copper windings in Ukraine, the United States, France, Italy, Germany, Poland, Brazil, and India are analyzed. Tests have shown that motors have higher efficiency and higher useful power than analogs.
V. A. Chuvashev, S. S. Nalivaiko, A. V. Shishov, D. V. Tsvetaev, Yu. N. Papazov   +4 more
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Asynchronous dielectric induction motor

IEE Proceedings A (Physical Science, Measurement and Instrumentation, Management and Education), 1990
A small electrostatic induction motor has been constructed, consisting of a cylindrical stator with 24 bars, forming eight pitches of three bars each, adjacent bars being connected in sequence to the lines of a three-phase 50 Hz voltage supply of 1400 V/sub RMS/ line-to-line.
E.R. Mognaschi, J.H. Calderwood
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Asynchronous induction roller motors

Russian Electrical Engineering, 2008
Problems of designing special modifications of roller induction motors of ARM2P type for variable-frequency electric drives have been considered. Motor designs, energy indices, and adjustment properties are presented.
A. E. Gusel’nikov, V. S. Baklin, P. R. Baranov   +2 more
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Asynchronous motor with spiral sheet armature. Improvement of the functional characteristics of the asynchronous motors

ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501), 2002
The study of the magnetic characteristics and constructive shapes of conductive materials, allows a better use of its electrical characteristics, reducing the maintenance and extending the life of the electrical machines. The improvements obtained on the torque with low currents using rotor with spiral sheets (with its different magnetic variants) are ...
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Asynchronous performance of hysteresis motor

Journal of the Franklin Institute, 1975
Abstract A simplified model of the hysteresis motor is introduced and analyzed; field analysis is undertaken at hand of Maxwell's stress tensor and Poynting's theorem. The suggested approach provides deeper insight into the power interchange process between stator and rotor.
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Inverter-Fed Asynchronous Motors for Traction Systems

IFAC Proceedings Volumes, 1977
Publisher Summary Variable-frequency inverter-fed asynchronous motor constitutes, in the field of electric traction, an effective option to traditional d.c. motor. The success of this equipment is connected to the advantages the squirrel cage asynchronous motor may provide lower weight and small dimensions, higher power at high speed, less ...
C. Rossi, G. Stopiglia, E. Tortello
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INCREMENTAL MOTION CONTROL SYSTEM WITH ASYNCHRONOUS MOTOR

IFAC Proceedings Volumes, 1983
Abstract The possibilities of incremental motion control, with asynchronous motors are discussed. Various dc link static converters are shown, which provide the motor step by step operation, when the discrete information items into elementary displacements of the rotor are converted. An analytical expression of the electromagnetic torque developed by
A. Kelemen, M. Imecs
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Dynamic behavior of a multi-phase asynchronous motor

2009 European Control Conference (ECC), 2009
The goal of this paper is the analysis of the dynamic behavior of a multi-phase asynchronous motor. The Power-Oriented Graphs technique has been used for modeling the system and a very simple and compact model has been obtained. The steady-state equations of the system have been studied finding remarkable relations between the motor voltage and current
Zanasi R., Grossi F., Azzone G.
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