Interview with M. Zafar, Director of Innovation, World Energy Council



According to the materials of International Scientific and Practical Conference PQM-2018







Grabchak E.P., Medvedeva E.A., Petrenko A.O., Shchinova T.V.


Abstract. The conceptual provisions of the methodology for calculating the probability offailure of a functional unit and the unit of the main process equipment (hereinafter – equipment) and the assessment of its consequences are set forth. The development and implementation of the proposed approaches allows, in the authors’ opinion, to supplement the prioritization of impacts on the main technological equipment, based on an index assessment of the technical condition of the assets, with prioritization taking into account the risk of the consequences of equipment failure (hereinafter referred to as risk). The introduction of risk into the regular process of preparing decisions, as one of the criteria for prioritization, is an important tool for increasing the efficiency of managing the technical condition of the main process equipment as the main instrument for ensuring the reliability of energy supply.
Keywords: electric power industry; power system, functional unit; main technological equipment; probability of failure, the consequences of failure; risk; technical condition


Esyakov S.Ya., Sigov A.S., Voropay N.I., Varfolomeyev S.D., Stennikov V.A., Redko I.Ya., Barinov V.A., Matjukhin V.F.



Gvozdev D.B., Arkhangelsky O.D.


Abstract. Widespread implementation of information technologies and computer engineering means at power facilities raises the question of ensuring the information security of power facilities automated control systems. Scenario modeling method implemented in the simulated electric power system (EPS) can be applied for studying the reliability and safety of automated dispatch control systems (ADCS). For creating power system model the real-time EPS modeling procedure is proposed. Herewith, the secondary equipment is included in the simulation (among the secondary equipment are relay protection and automatic equipment terminals, controllers and intelligent devices). At the same time, primary substation equipment can be represented by a computing model. This approach to simulation is called in-line simulation or analog-digital simulation. Simulation of EPS segment with included relay protection and automatic process control system devices will allow engineers assess the consequences for various scenarios of complex electric power system operation failures.
Keywords: cyber-physical model, EPS simulator, risk analysis, EPS reliability, failure analysis, scenario simulation




Gracheva E.I., Naumov O.V.


Abstract. The article provides a comparative analysis of methods for calculating the load on: installed capacity, demand factor, rms power, load form factor, average power, maximum factor (ordered diagram method), unit load per unit of production area. An assessment of the advantages and disadvantages, as well as the errors of these methods is given. Recommendations on their use and application are offered.
Keywords: electrical networks, calculation of loads, methodical error, installed power, electrical receivers

Kotikov E.S., Rusina A.G., Samsonova E.S., Filimonov V.A.


Abstract. Upgrading of prediction models and techniques in load centers has always been and remains a burning issue both for mode planning problems when controlling electric power system (EPS) and for design problems. These developments have a common purpose: prediction accuracy improving during automated computation. The paper considers the proprietary technology of EPS substations load prediction in relation to the engineering company practice. The technology is implemented in the experimental software package. Conducted computations showed that principles and approaches to the prediction can be systematized by using the developed experimental software package. Also, this software package allows engineers to automate the computations and to analyze the alternatives for EPS development.
Keywords: predictive modeling, electric power system, design, automated computation, computing model

Petrov A.A., Petrova V.A., Sharafeev T.R.


Abstract. An approach is proposed for calculation of the indicators of reliability of an autonomous power supply system power source under the conditions of unchanged and variable load, presented in the form of continuous and multistage diagrams. The indicators of the power source reliability are used to calculate the damage to consumers from power outages. The load power can change during the day, so the requirements for the amount of electricity generated by the power source and for the power are different. For each stage of the daily load curve shall be determined the number of units, generally not equal to each other: the minimum number of units capable of generating the required power, and the number of normally operating units. The failure of the source is its inability to provide for the load needs. This occurs if the number of units in operational condition for various reasons becomes less than the minimum number of units providing for generation of necessary power, therefore the very fact of changing the power of consumers affects the overall reliability of the source. Such indicators of equipment reliability as the failure and restoration intensity of units and the probability of the unit failure at its start were used for calculation of the source characteristics. The reliability indicators were calculated and analyzed for four types of the load diagrams.
Keywords: reliability, mini-CHP, reliability index, load curve, availability factor, low power station, probable starting failure, autonomous electrical supply system


Zasypkin A.S., Shchurov A.N.


Abstract. The technique of accounting of responsibility of the overhead power line (OHL) when choosing sequence of ice melting in power networks region with use of an indicator of efficiency of schemes of ice melting is developed. It is offered to consider level of responsibility of the OHL using the coefficients of recalculation which are linearly depending on a logarithm of the period of repeatability of the maximum weather parameters.
Keywords: overhead power line (OHL), ice melting scheme, efficiency indicator, level of responsibility of OHL

Kulikov A.L., Osokin V.J., Obalin M.D.


Abstract. The double earth fault location is a priority due to the high wear of medium voltage networks. In the article the methods of fault location accuracy increase for double earth faults in networks 6–35 kV with usage of simulation, the accumulation of statistical information and error compensation calculations and modeling are proposed. The method of specifying the distances to double earth faults on different lines by means of iterative recalculation has been developed, which allows to reduce significantly the calculation error and reduce the necessary bypass zone of the damaged line. This work was supported by the Ministry of Education and Science of the Russian Federation (agreement No. 14.577.21.0244 for provision of support of September 26, 2017. Unique project identifier RFMEFI57717X0244).
Keywords: double earth fault, fault location, network with isolated neutral, simulation model

Abdurakhmanov A.M., Glushkin S.V., Shuntov A.V.


Abstract. Such reliability parameters of 6–10 kV overhead transmission lines with non-insulated and insulated wires as failure rate and mean restoration time were analyzed statistically. The paper shows a noticeable (3.5–7.4 times) increase in the reliability of overhead transmission lines while transition from non-insulated to insulated wires upon equal conditions. On this evidence, as well as on a number of other influencing factors, extended use of overhead transmission lines with insulated wires in medium voltage networks is recommended.
Keywords: 6-10 kV electrical networks, reliability, mean restoration time, failure rate, failure structure, non-insulated and insulated wires

“EM-Kabel”, LLC


TK “Norma-kabel”, LLC



Ryabin T.V., Vishnevskiy G.V., Dubinin M.V., Kashcheyev A.V., Sytnikov V.E.


The paper briefly presents the results of the superconducting DC line development for the power system of St. Petersburg. The main attention is paid to the investigation of threatened emergency operation associated with break- downs in the cryogenic system. Analysis of the data obtained during emergency operation tests of the helium management system for a cable line is presented. Circuit diagrams of the helium management system are provided. Maximum admissible limits of the helium management system for high-temperature super- conductor cable (HTS) during emergency operation are determined. Potential transmission time of the rated power by cable in case of various cryogenic system failures was evaluated. As a result, an adjustment to the created interlock and protection system of HTS cable helium management system was proposed for enhancing the operation reliability in various modes.

Keywords: cryogenic facilities, HTS cable, high-temperature superconductivity, helium management system, emergency operation tests, interlock and protection system

Dmitriev M.V.


Abstract. After damage of several 500 and 750 kV gas-insulated breakers occurred due to the presence of an aperiodic component in the current, PJSC “FSK” in 2012 issued order No. 838r, regulating the calculations of processes on the lines with reactors and the main methods of protection of switches. Formally, this order applies not only to overhead lines, but also to cable lines. However, there are a number of issues with cables that have become the reason for the new article.
Keywords: reactive power, power compensation, single-core cable, cable capacity


Kuzhekov S.L., Nagay V.I., Degtyarev A.A., Nagay I.V., Antonov D.B., Kokoulin D.N., Litash B.S., Kharun G.V.


Abstract. The article describes the phase comparison protection (PCF) of the overhead line. The line is connected on both sides to the power supply. Protection has the function of backup relay protection of power transformers and switching devices of substations connected to the branches of the line. The problem of remote backup of the considered substations is relevant since the 60-70s of the last century and it is quite acute on transit lines with transformers of the branch substations with non-equal power. As a rule, backup protections are performed in the form of autonomous devices with relative selectivity, but now due to the development of microprocessor technology and the use of modern communication channels, communication protocols, the tendencies of combining protection of several objects up to the entire substation it can be with the one relay protection complex. This paper addresses the issues of increasing the effectiveness of backup protection of branch sub-stations using PCF resources and with measuring units of various operating principles, including those controlling fault components adapting to the regime of the protected equipment. The phase comparison function of the remote backup function is performed with biasing by a controlled resistance. Design documentation has been developed and panels PERA DFZ have been manufactured, which include Sirius-3-DFZ-01 devices. These panels were used for trial operation in the branch of PJSC Kubanenergo Armavir Electric Networks.
Keywords: electric networks, relay protection, phase comparison overhead line protection with two-way power supply with remote backup function, short circuit




“NTC Mekhanotronika”, LLC



“Elektrotekhnicheskiye sistemy”, LLC


Vysogorets S.P.


Abstract. On the appearance of damage in transformers, the gas protection triggers on a “signal” and/or a “blackout”. A number of regulatory documents established requirements for checking the presence or absence of gas in a gas relay after each actuation of gas protection, with its subsequent analysis of the flammability and component composition. According to the results of the over a ten-year period analysis of one electric power industry entity, gas protection was installed at 3% of transformers from their total fleet (or an average of 5 transformers per year). Evaluation of the subject operational personnel actions showed the presence of significant problems of the organizational and methodical plan in terms of ensuring the work on the selection and analysis of gas from the gas relay, ultimately affecting the decisions quality, errors in which lead to serious problems. The foregoing indicates the need to analyze and search for new technical solutions aimed at improving the efficiency of gas protection of transformers in modern energy industry.
Keywords: gas protection, analysis, transformers, gas relay, damage

Bartolomey P.I., Semenenko S.I.


Abstract. Worldwide trends in the development and improvement of power system mode control are associated with the implementation of synchronized phasor measurement complexes based on PMU (Phasor Measurement Unit) application in WAMS (Wide Area Measurement System). It is shown that efficiency increase of shared use of synchronized phasor measurements and the existing SCADA information system for assessing power system state is achieved by PMU placement algorithm based on the analysis of electrical network topology and by PMU connecting with optical measuring current transformers and measuring voltage transformers. In such a way, both efficiency and quality of system state assessment are increased.
Keywords: phasor measurements, state estimation, SCADA, telemetry, optical measurement transformers

Daryan L.A., Golubev P.V., Goncharov P.V., Obraztsov R.M., Kotolivtsev V.V.


Abstract. The paper presents the results of X-ray complex installation pilot operation for examining 110 kV low-oil-content circuit breaker. The pilot operation was conducted in September, 2018 at substations of IDGC of South, PJSC. Complex installation functionality and technology for performing X-ray examination of substation equipment are described. This research work was conducted as part of the R&D project “Research and development of technology and instrumental and analytical support for X-ray examination of high-voltage circuit-breaker”.
Keywords: X-ray analysis, X-ray machine, X-ray pattern, fault identification, high-voltage low-oil-content circuit breaker


Smelkov G.I., Nazarov A.A., Pekhotikov V.A.


Abstract. Conceptual issues of the modified standard IEC 60695-1-12: 2015 “Fire hazard testing. Guidance for assessing the hazard of electrotechnical products. Fire safety systems” are stated for the first time in the article. Steps of development process concerning fire safety system (FSS) are considered. Criteria to evaluate fire-fighting requirements and their compliance with electrical facility FSS are presented. One of the important considered sections is the fire risk probability estimate method. Previously probabilistic techniques related to the assessment of the electrical equipment fire hazard had not been used in the standards of the International Electrotechnical Commission (IEC). Development of this standard contributes to the harmonization of international and interstate approaches in terms of assessing the fire risk from electrical equipment.
Keywords: electrical equipment, fire hazard, probabilistic risk assessment, harmonization of standards


Russian Federal Service for Ecological, Technical and Atomic Supervision





Attracting young professionals to solving strategic problems of the power industry



Interview with Stephen Berberich, President and Chief Executive Officer of California Independent System Operator



Joint project of National Research University “MPEI” and Polytechnic Museum