Results 261 to 270 of about 75,198 (307)
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Asynchronous induction roller motors
Russian Electrical Engineering, 2008Problems 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 +2 more
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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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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 ...
openaire +1 more source
Prospects of constructing 20 kV asynchronous motors
IEEE Transactions on Dielectrics and Electrical Insulation, 200920 kV distribution networks with all its components, such as transformers, switches, cables etc., have existed and been operating safely for many decades. From an economic point of view, it would be convenient to replace the transformer-motor combination by just a single 20 kV asynchronous motor, even if the motor itself were more expensive.
Vereb, Laslo +4 more
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Inverter-Fed Asynchronous Motors for Traction Systems
IFAC Proceedings Volumes, 1977Publisher 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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Dynamic behavior of a multi-phase asynchronous motor
2009 European Control Conference (ECC), 2009The 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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INCREMENTAL MOTION CONTROL SYSTEM WITH ASYNCHRONOUS MOTOR
IFAC Proceedings Volumes, 1983Abstract 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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Asynchronous performance of hysteresis motor
Journal of the Franklin Institute, 1975Abstract 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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The Asynchronous Motor Start Calculation with the Motor Soft Starter
2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2018In the article a modification of the algorithm for calculating currents and torques during a soft start and automating the processing of a calculation data array is considered for a concrete example of an asynchronous motor.
Andrei A. Shevchenko +3 more
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Design of an asynchronous electrostatic motor
Review of Scientific Instruments, 1990An asynchronous electrostatic motor that works under a high-voltage pulse controller using LED-phototransistor photosensors is described. The motor produced the torque 1030-dyn-cm at 1500 V and attained the power 0.8 mW at 80 rpm in n-hexane.
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Asynchronous motor drive loss optimization
Journal of Materials Processing Technology, 2007Abstract This paper presents a methodology for determination of harmonic iron losses in laminated iron cores under non sinusoidal excitation. The methodology adopted is based on a particular 3D finite element model by using a reduced scalar potential formulation.
Nikolaos Tsouvalas +3 more
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