Factors, defining fuel combustion process efficiency have been researched. Character of combustion process dependency on extra air has been determined. Methods to compute extra air value are provided. Solution of the challenge to control combustion process components by the facility of continuous monitoring automated system. In particular, it is displayed that use of proposed system provides costs reduction on repairs of gas processing aggregate by means of in-time diagnostics of wear process in combustion chambers and reduction by 30–40 % values of the bills for atmosphere polluting.
Methods to resolve the issues appearing during development and manufacturing of verifying flow-metering units for various liquids meters are reviewed. General construction and metrology requirements to the units are formulated. The option for commercial realisation of stated requirements on example of designing flow-metering units for water flow meters and flow-meters integrated into heat-meters.
The main reasons of accidents in power engineering companies are analysed, measures on reducing accidents rate in the industry are reviewed, software-and-hardware system for personnel training, using remote educational technologies is presented, the choice of active and interactive personnel education methods is justified, including multi-media resources of new generation.
Efficiency of selecting power of filter compensating circuits is justified for electric steel making systems of small power, considering stipulation to maintain voltage at the prime side of the furnace transformer at nominal level. It is displayed that voltage decrease has negative effect on operation parameters of steel-making arc furnace and «ladle-furnace» facility. The mathematics model is provided for power supply system with use of typical plots of electric loads at steelmaking arc-furnace and ladle-furnace facility in order to select parameters of filter compensating facility. Analysed are the efficiency parameters of developed filter compensating device.
The issues of modernisation and designing modern electric driven gas compression units with electro-magnetic shaft suspension are reviewed. The innovative results of developing automated control for the systems of electromagnetic bearings in powerful machines and aggregates are presented. Actuality and prospects of implementation of electromagnetic suspension systems and oil-free technologies are justifi ed in view of increasing power use effi ciency and reliability of operation of electric equipment and process aggregates at main gas pipe lines. Suffi cient reduce of OPEX due to absence of oil systems and opportunity of quick re-pay of the systems of electromagnetic suspension within 2–3 years are demonstrated.
Basic technical parameters of integrated switch gears of cassette type are presented. General arrangement solutions for the cabinets with cassette extending elements are reviewed, as well as the maintenance principle for devices of this kind. Data on domestic producers of new equipment are provided. Analysis of advantages of the new generation switch gears is provided, suggestion is made – the devices will be widely implemented as the new, power effi cient and commercially profi table electric equipment.
The new method of oscillographic testing of switching device contactor terminals switching is provided, the device is installed on the winding of power transformer, assembled as per "delta network" without mounting insulating gaskets between main arcing contacts and secondary contacts at one of the contactor's phases. The oscillograms of currents, obtained as per proposed method, provide clear understanding of contactor terminals operation at individual phases and the possibility of assess operational time shift individually.
Justifi ed is the necessity of diagnostics of actual condition of the electric drive by level of mechanical vibration. The electric drives diagnostics results are provided. Operational drives damage types are provided, damage graphic dependencies in the function of power nominal values, rotation frequencies and distances from the electric motor. The aspects of the system vibration "driving mechanism – electric motor" are reviewed. Vibration diagnostics of status of various operating electric drives, conducted within fi ve years at several industrial companies, allowed, as per evaluations of electric maintenance services experts, to reduce maintenance costs by 10–15 %.
Researched are the sources and conditions of voltage fl uctuations in load assemblies when operating in the systems of power supply to industrial electric receivers spots. Within mathematics model of load assembly with equivalent electric receiver and compensating device, connected to non-ideal power source, the issue of model's parameters identifi cation in being reviewed in order to reduce time of voltage change in dynamic modes by means of generation reactive power of capacity character in the assembly of load consumption. The research was conducted as a part of project under state order from the Ministry of science and education of the RF № 8.2668.2014/K.
Based on the results of practical works on thermal-imaging control of electric equipment and evaluations of thermal condition and reliability of the electric equipment, presented are the parameters of abnormal overheating and allowed tolerances over external surfaces temperature. Provided are the thermograms obtained via thermalimaging monitoring of electric equipment components.
Changes dynamics was researched for one of functional parameters in shop network – equivalent resistance of the network – depending upon the main eff ecting factors. On the basis of developed mathematics model, the nomograhic charts are plotted, allowing to clarify equivalent resistance of the network sector, therefore to reduce the error when calculating electric power losses. The developed model allows to consider dynamics of changes in scheme and modal parameters of the network, and it is recommended to be used in formulating electric power balances and for controlling shops’ networks modes.
The developed testing methods are presented, along with software for diagnostics of thermal engineering facilities, as well as effi ciency evaluation of heat consumption control. Provided are evaluation criteria and analysis methods for heat consumption control mixed method. Described is the method of evaluating profi tability of heat consumption control using retrospective information. Proposed is the technology of step by step diagnostics of OTE defects leading to violation of fl ows balance in heat consumption systems.
A presentation is the author's method of united automated control system of electric power quality in the region with voltage 0,4–220 kV with simultaneous and continuous monitoring and control of electric power quality criteria. A description is the method to determine minimum sufficient list of quality criteria and the values in monitored cross-sections during automated control of electric power quality in adjacent networks. The developed method is recommended to be used in pilot regional project to monitor electric power quality simultaneously in industrial networks and corporate networks, of for household consumers, with voltage 0,4–220 kV.
Classifi cation of equipment with natural cooling function (free cooling) is presented. The results of «traditional» and proposed schemes operation of climate control equipment are analysed. Actual operation results of inputexhaust ventilation equipment ”UV ENISEI 2000” at one of main stations JSC ”Megaphon” are reviewed. Design of power effi ciency on the basis of statistical data (19,8 %) and savings of other process costs obtained as a result of ”UV ENISEI 2000” implementation is provided.
Experience of modernising boiler facility at SDPP power block on the basis of low temperature turbulent technology of fuel combustion is presented. Computations of profit and losses revealed that systematic engineering re-equipment allowed in existing building to create actually new boiler facility and simultaneously enhance output of electric power. At that, specific costs of engineering re-equipment is by 7 times cheaper than erection of new facility.
