In this paper, the basic requirements for the electric-drive of mechanism of pulsed wire feed, and the benefits of using a special Brushless Direct Current electric-drive are described. For phase commutation of ...

Contact-free combiner synchronous generators rotor windings distribution schemes were reviewed. Merits and demerits of well-known combined windings and advantages of a new combined winding were defined on basis of ...

Modern energy-savingtechnologies are basing on adjustable-speed electric drive systems. Perfection of adjustable-speed electric drive systems is able with the aid of adaptation of all components, that they include, to each ...

In this study, power quality coefficients that determine the distortion of electrical systems are established. The power factor is chosen as a universal criterion for electromagnetic and electro- energetic compatibility ...

The widespread use of current transformers both in relay protection systems and for measuring purposes makes the task of estimating their errors quite urgent. The permissible error levels of modern measuring current ...

The thesis is devoted to the improvement of large power autotransformers (AT) operation through the use of automated continuous monitoring complex of AT cooling system. It allows detecting malfunctions at an early stage ...

A mathematical model of transient modes of asynchronous motor operation under phase control is experimentally confirmed to be valid. Both electrical and mechanical parameters and energy data are studied

The approach for modification of the reduced costs criterion is represented. It may be used for design of high-effective power-saving induction motors.

У результаті дослідження частотно-регульованого асинхронного двигуна в динамічному режимі встановлено, що у випадку урахування впливу насичення сталі магнитопроводу та витіснення струму в обмотці ротора похибка при визначенні ...