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Elektrika (Electrics) №8'2010 |
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| Table of contents
Consumer and power system
- Energy efficiency: Russian region rating in area of electric energy consumption in 1990-2010 , 3
In the article prepared by the professor B.I. Kudrin
scientific school, the main princioles of the rating evaluation
of regions in area of electric energy consumption in Russia have
been considered. The main trends in region development
are analyzed. Year 2010 prediction has been presented.
Keywords: electric energy consumption, rating evaluation,
prediction, N-distribution.
Prediction, rating, result evaluation
- Method of medium-term forecasting for electric energy consumption at enterprises and organizations in region Lesnichenko, A.Yu. (Lesnichenko_AU@mail.ru), 15
It is shown in the article that new hybrid medium-term
forecasting method applied to electric energy consumption in region
is based on neural networks and technocenosis theory. The main
advantage of the method is to account system constraints and
structural composition of consumers.
Keywords: electric energy consumption forecasting, information
systems, neural networks, technocenosis approach.
- Short-term forecasting for electric energy consumption at petroleum-processing plant Ermolenko, P.S. (Ermolenko_PS@surgutneftegas.ru), 19
Results of testing the method of short-term forecasting
with the use of various sets of initial statistical information
have been presented.
Keywords: short-term forecasting, electric energy consumption,
statistic information volume.
Rationalization of circuits for power supply
- Definition of asynchronous power of synchronous generators in calculations of electromechanical transients at asymmetrical modes Bulanova, O.V.; Malafeev, A.V.; Nikolaev, N.A.; Rotanova, E.A.; Panova, Yu.N. (logan_b_7@mail.ru, malapheev_av@mail.ru, cetl_nikolaev@mmk.ru, rotjuil720@mail.ru, panova.ea@gmail.com), 24
Number of generators of industrial works is augmented.
This leads to necessity to research the stability of their power
supply systems at non-symmetrical short-circuits. Algorithm of
calculating the transients taking into account peculiarities in
asynchronous powers has been developed. The corresponding software
has also been created.
Keywords: power supply system of industrial plant, transient,
generators, dynamic stability, non-symmetrical short-circuit,
asynchronous power.
- Dependence of possible state number of electrical receiver group on their load step number Vorob'ev, V.A. (tatiana49@mail.ru), 27
The dependence of possible state number of group of
the working electrical receivers with unchanging and changing
loads, which takes the form of exponential function, is shown.
The dependence of total power of the working electrical receivers
on their number is given.
Keywords: electrical load, electrical receiver, group, state,
loading.
- Influence of service characteristics of electric equipment on functional parameters of intraplant power supply systems Gracheva, E.I.; Safin, A.R. (sarkazan@bk.ru), 29
For calculating the electric energy losses in shop
networks, it is possible to use probabilistic-statistical
models of equivalent resistance dependence on the service
characteristics of electric equipment.
Keywords: electrical networks, electric energy losses, service
characteristics.
Electric energy accounting, energy audit, energy saving
- Technical-economic grounding of reconstruction of lighting installations during transition to the use of energy saving lighting fixtures and light sources Kirchegin, O.B. (obk@svet-ekb.ru), 32
By example of standard industrial shop room, procedure
of calculating the economic efficiency of replacement of obsolete
lighting fixtures by modern ones has been decsribed.
Keywords: lighting installatioin, energy-saving lamp, technical
and economic grounding, reconstruction.
Electric equipment repair and diagnostics
- Calculating the agreement criterion of reliability index of non-reconditionable elements of cable lines of 10kV distributing networks Grachev, A.S. (asgrachev. 51@yandex.ru), 35
Hypothesis about suggested type distribution of cable
line element failure values taking place is checked.
Keywords: Pirson's criterion, exponential distribution law,
non-recoditionable elements.
Electric equipment safety
- Technical regulation of 'About safety of low voltage equipment'. Analysis of requirements to electric equipment Kharechko, Yu.V. (kharechko@mail.cnt.ru), 38
Theinformation on 'About safety of the low-voltage'
technical regulation requirement toelectricequipment has been
presented in the article.
Keywords: electric plants, technical regulation, low-voltage
electric equipment.
Information
- Prospects for regional alternative power industry , 45
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Тел./факс: (495)988-98-65, (495)988-98-67
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