This article considers the urgency of the problem of ensuring impermeability of vacuum system of the turbine and vacuum deaerators. Developed and successfully tested in an industrial operation highly effective instrument and without instruments methods detection place air suction in equipment operating under vacuum, including technology continuous monitoring of impermeability vacuum systems of the turbine and auxiliary turbine equipment.

The following algorithm of action of measuring body of reserve protection is offered: continuously differences vectors currents of phases A and B, B and C, C and A in these and previous timepoints are defined, these differences are subtracted the friend from the friend, and then - and their differences. It is shown that it provides the demanded sensitivity to two-phase short zamykakniya behind low-power transformers branch. The blocking ensuring the correct functioning of protection in various modes are considered. The algorithm of logical part is presented. Difficulties of realization on static elements are noted and at bilateral food.

Developed new and useful regression models are used to predict the power consumption. An experimental analysis of the quality and behavior of regression models in several methods of the operational forecasting of electricity consumption. Optimal method operational forecasting electricity.

The specified calculation method of difficult electrical power systems modes in phase coordinates allowing defining correctly mutual electromagnetic influences in near, intermediate and distant zones of integral of Carson is offered. For near and far zones the approximating expressions, and for the intermediate direct calculation of ranks to which the integral is reduced are used. Because of complexity of wires interferences in multi wire system it is required use of phase coordinates. Such opportunity the program Fazonord complex developed by authors which allows replacing the long multi wire line with the chained scheme. As in a program complex at calculation of the mode the trellised equivalent circuit of multi wire system by use of expressions for own and mutual resistance of separate wires is formed, the algorithm of Carson formulas realization accepted from the point of view of coverage of near, intermediate and distant zones and possessing sufficient speed for carrying out repeated calculations is required. The technique is realized in the program Fazonord complex developed in Irkutsk State Transport University with coverage of near, intermediate and distant zones. The program complex allows carrying out calculations of electrical power systems modes in phase coordinates and it is correct to determine the induced voltage taking into account the high harmonics at various sizes of width of rapprochement of adjacent power lines and values of earth resistance.

Germany's Energy has come a long way of transformation, gaining their individual traits, that are largely differing from global trends. Currently, Germany is the mistress of the European energy system, so from where will turn its energy vector depends on the fate of the European Union. Article is devoted to the comprehensive analysis of the trends transforming of the energy economy of Germany, which provides an answer to the question: what are the real prospects for his development, taking into account economic, ecologic and geopolitical realities. Energy turnaround is, on the one hand, a massive challenge, on the other - it opens a huge opportunity. Germany's attention focuses on a strategy of innovative development of energy, efficient energy management and energy security issues. The article presents the views of linking energy future of the society with the development of clean, renewable energy sources.

In this article the possible directions of injury prevention are discussed. Actual injury prevention measures are described in the light of the human factor.

For identification of parameters of the asynchronous three-phase motor and its loading it is necessary to have information on currents of a short-circuited rotor. On the basis of a continuous gradient method of search of a minimum of certain and positive function from not knittings of the equations of the generalized electrical machine the method of identification of parameters of the asynchronous three-phase motor and currents of a short-circuited rotor is developed. The function chart of the device of identification is developed. Possibility of realization of this device with use of simple elements, such as multipliers, adders and integrators is shown.

This article discusses the research and development of methods for the calculation of operational reliability of induction motors using structural and functional models, allows you to create probabilistic and statistical equations failures of parts and assemblies of the machine. Proposed structural and functional model of the stator winding, which allows the design phase to optimize the parameters of reliability and failure rate items induction motor.

This paper presents a simple and practical technique of Rogowski transducers for measuring small currents at low frequencies. The parameters of the Rogowski coil with the affiliate integrator is established to deduce the transfer functions. Main features of a design - such as the time constant of source and time constant of feedback - are described. Relationships between the sensitivity, the bandwidth of the transducers are investigated. Results of Micro-Cap program design are disclosed. In addition, for obtaining the maximum voltage output the effect of matching were considered. Results show that the sensitivity and bandwidth of transducer simply optimized by usage proposed parameters.

In article the way of determination of distances to places of double short circuits on the earth on one power line by measurement of emergency components of phase current and phase tension is offered. Results of theoretical calculations coincided with results of modeling in the program MatLab Simulink environment.

A new method for ice detection on wires of air-lines, including transmission by wire overhead line sine wave frequency and amplitude stable and fixing the level of the RF signal. We discuss the results of laboratory studies using this method on a model of an overhead power line.

Chemical composition, dispersivity and optical properties of peat ash particles are investigated in this paper. Calculation of gas phase components is based on thermal characteristics of the original fuel. Methodology and results of the calculation of the thermal radiation of heterogeneous combustion products at peat burning are given.

The mathematical model of non-stationary hydrodynamical process in a gas main, arising is constructed at closing a latch. Mathematical modelling transitive hydrodynamical process for cases of full and incomplete closing a latch is lead. On the basis of results of modelling it is offered, as an attribute of a degree of blocking of a stream a latch, to use growth rate of pressure in a pipe before a latch.

No isothermal viscous incompressible fluid flow past a porous permeable balk of square cross section was investigated. The equations of the conservation of the momentum and energy are solved numerically using the finite volume method. The flow pattern, the dependence of the drag and the cylinder Nusselt number on the Reynolds number, Darcy was analyzed.

The aging of paper-oil insulation is determined by changing the value of its degree of polymerization. Used today ways to assess the degree of polymerization of paper-oil insulation of high voltage equipment has the following disadvantages: labor input and long-time produce a result, the high cost analysis, environmental pressures, the complexity and high cost of automation. We propose a method of estimating the degree of polymerization of the paper insulation implemented by measuring the reflectance of paper in the visible wavelength range, taking into account the effect of transformer oil.

The specific approach to the parametric profiling of the 2D compressor blades during multicriteria optimisation is discussed in the paper. Special topology is presented where suction and pressure sides are described by Bezier curves. Recommendations are given for problem definition features during optimisation process together with results of particular tasks. Optimisation was realized with in-house codes for profiling, ANSYS CFX for CFD modelling and IOSO for automated multicriteria optimisation.

The paper discusses the prospects of gas cleaning technology from environmentally harmful impurities in the streamer corona. The paper presents dynamics of pollutant emissions into the atmosphere. We have defined active and passive conversion zone. We have developed model of the installation of high power characteristics.