An essential part of the intelligent management of an industrial plant is the predictive maintenance to be applied for all the equipment, including also electrical machines. Several fault detection techniques were developed in the past years for the most frequently used rotational electrical machines, but only a few papers were published in the field of condition monitoring of special electrica...

PS1: Developments of Rotating Electrical Machines A1-101 A novel technique for refurbished induction motors’ efficiency estimation based on no-load tests M. AL-BADRI , P. PILLAY A1-102 Performance of high efficiency induction motors with power quality problems P. DONOLO, C. PEZZANI, A. BONELLI, A. AOKI, R. NEHLS, G. BOSSIO, G. GARCIA A1-103 Optimization of the ventilation system of a hydrogener...

The physical model of many electrical objects is a hollow cylinder finite length. As basis for constructing analytical models machines, linear equations mathematical physics are used. They the solution Laplace three-dimensional partial differential equation, which widely used in calculations.
 
 purpose study to solve equation length, can be adapted electromagnetic calculation electro...

Hybrid excitation is a technology that combines the advantages of field windings and permanent magnets for inducing magnetic flux. This article studies benefits hybrid provides an outlook on their possible applications, such as wind power generators electric vehicle motors. Compared to magnet-based machines, gives variable flux while still using advantage portion also looks into some different ...

Abstract—This paper presents a several diagnostic methods designed to electrical machines especially for permanent magnets (PM) machines. Those machines are commonly used in small wind and water systems and vehicles drives. Those methods are preferred by the author in periodic diagnostic of electrical machines. The special attention should be paid to diagnostic method of turn-to-turn insulation...