Wyniki wyszukiwania - BazTech

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Generatory synchroniczne dla autonomicznych bezprzekładniowych elektrowni wiatrowych

Czuczman J., Czerepanjak M., Sczur I., Golubowsky P.

Maszyny Elektryczne : zeszyty problemowe

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2005

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Nr 71

125-130

EN

For the correct definition of capital expenses and working costs, for the development of an autonomous wind power plant, it is necessary to take into account the features of the consumers of electric energy, modes of their work, time power diagrams of winds for the given district, and also, a whole series of other factors. The construction circuit of such electric station is considered. It is recommended to use the gearless stations that are equipped with low-speed synchronous generators with excitation from permanent magnets for the purpose of maximal use of energy small winds. The front design of the synchronous generator is well coordinated with various kinds of wind wheel. The offered bloc-modular design of the electric machine provides an opportunity of manufacturing of generators with the capacity from 1 up to 10-15 kW from the unified elements and standard blocks. The description of a design of the generator and its elements is given in this article. Generators have good technical and economic parameters, high reliability, and practically do not demand service. Wind power plants with offered generators can be used for various types of equipment such as drives of water pumps, air conditionings, heating of water, heating, and other economic needs. Generators can find applications in small hydro-power engineering.

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Modernizacja uzwojeń wsypywanych silników asynchronicznych podczas remontów

Czuczman J., Maksimovicz D.

Maszyny Elektryczne : zeszyty problemowe

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2004

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Nr 68

147-151

EN

This article deals with the interrelationship of performance characteristics of the induction motors with the fillings windings that are dependent on the type of windings which are used during the repair. In order to decrease the labor-intensiveness of the technological process one could make wider use of a lathe for the mechanized working of this kind of motors. At the same time it could cause an increase in the losses in the magnetic wires, the size of power loss, the decreasing of its reliability, and the term of its operation. This type of motor could be mainly repaired by service station whose technological equipment is different from the equipment of big businesses. A solution for all of these problems could be a process of modernization of the stators' windings during the repair. This modernization includes the replacement of single-layer or single-double-layer concentric windings in favor of single-layer equipment windings or double-layer windings. There are examples of the realization of the different types of windings that could provide the minimization of copper use without increasing the labor-intensiveness of the procedure. At the same time it provides the decrease of power lose in the motors with invariably power factor.

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Metody diagnozowania uzwojenia klatkowego wirników silników indukcyjnych

Czuczman J., Chlipalski J.

Maszyny Elektryczne : zeszyty problemowe

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2002

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Nr 64

121-126

EN

The analysis of methods and facilities for quality monitoring of squirrel - cage winding rotors of asynchronous machines is executed in the article. The differences of methods and facilities for monitoring intended for usage on industrial firms of electric machines mass production, and maintenance enterprises are reviewed. The description of devices ensuring increase of diagnosing accuracy is adduced. The capability of creation of the automatic rotors test system is rotined, to provide rods defects detection and rotors sorting by the winding resistance.