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62.731  Articles
1 of 6.274 pages  |  10  records  |  more records»
The traction electric drives for electric rolling stock of alternating current employ the diode and thyristor rectifiers that predetermine a series of shortcomings. These include the significant emission of reactive power and higher harmonics of currents ... see more

The research to propose methods of determination of the load factor, at which it is advisable to switch off one of two parallel working power feeding transformers in order to reduce the losses of active energy in transformers, has been carried out.

Transmission interconnecting lines (called interconnectors in this study) are built to facilitate the exchange of active and reactive power between two areas of a network. Step-up and step-down transformers are required at the ends of the interconnector w... see more

Transmission interconnecting lines (called interconnectors in this study) are built to facilitate the exchange of active and reactive power between two areas of a network. Step-up and step-down transformers are required at the ends of the interconnector w... see more

In order to minimize the reactive power and higher harmonics of currents, as well as to improve the electromagnetic compatibility of electrical traction networks and systems of railroad automation, modern electric rolling stock of alternating current empl... see more

In this work four methods for estimating annual technical power losses in distribution networks due to the distributed generation (DG) connection are studied. The methods are obtained of professional sources, and are evaluated in a test system.&... see more

In this paper, an improved smart meter data-based three-stage algorithm to calculate the power/energy losses in three-phase networks with the voltage level below 0.4 kV (low voltage—LV) is presented. In the first stage, the input data regarding the ... see more

Installing a synchronous condenser (SC) onto an electricity grid can assist in the areas of reactive power needs, short-circuit strength, and, consequently, system inertia and guarantees better dynamic voltage recovery. This paper summarizes the practical... see more

A wide electricity supply-demand gap especially in developing economy such as Nigeria has created series of challenges such as frequent power outages, poor voltage profile and high power losses among others yet to be addressed. This work examines the effe... see more

1 of 6.274 pages  |  10  records  |  more records»