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29 ноября 2016
«ЭЛЕКТРОЭНЕРГИЯ. Передача и распределение» № 6(39), ноябрь-декабрь 2016
СОБЫТИЯ
ВОЗДУШНЫЕ ЛИНИИ
ВОЗДУШНЫЕ ЛИНИИ
КАБЕЛЬНЫЕ ЛИНИИ
ОБОРУДОВАНИЕ
ОБОРУДОВАНИЕ
ЭЛЕКТРИЧЕСКИЕ СЕТИ 20 КВ
РЕЛЕЙНАЯ ЗАЩИТА
РЕЛЕЙНАЯ ЗАЩИТА
ДИАГНОСТИКА
ДИАГНОСТИКА
СРО В ЭНЕРГЕТИКЕ
КАДРЫ
МИРОВОЙ ОПЫТ
“Electric power. Transmission and distribution”
No. 6(39), November-December, 2016
TOPIC OF INTEREST
Regions
A solid foundation for Yugra power engineering development
EVENTS
RUGRIDS-ELECTRO
Who will lead the transition to power engineering of the future?
Results of “Energoproryv-2016” competition
“Isolator” plant. 120 years experience in innovative developments and production of high-voltage bushings
From smart metering to smart grids
The future is already here
Monitoring systems. Indication or technical diagnosis?
Establishment of testing centers national association
Seismic safety of power facilities. Lessons from the last major earthquakes
FIFA World Cup 2018
Football energy
Kaliningrad will be one of the first in the country where power facilities for FIFA World Cup 2018 have to be put into operation
RUSSIAN POWER GRIDS
New Territories
To meet the high requirements of the capital
Technological Connection
“Central Federal District regions get extra power”, — IDGC of Centre, PJSC
Technological connection issues at JSC “UNECO”
Grid Control
Cloud technologies in power engineering
Abstract.
Multiple calculations of electrical networks modes require high-power computing centers, volume data storage and quick access to the data. Cloud technologies meet all afore-mentioned requirements. They are considered in the paper.
Keywords:
cloud technologies, PAAS, IAAS, SAAS, data processing, energy efficiency
Reactive power compensation in PJSC “MOESK” distribution network
Overhead Transmission Lines
“FORENERGO” manufacturers association. Development continues!
“NILED” company develops pole fittings production for self-supporting insulated wires on its new Podolsk plant
Sectionalized centrifuged tower bodies for repair and technical upgrading of 35-500 kV overhead transmission lines
Focus on the useful localization
Cable Lines
Methods to increase allowable current for pipe laying cables
Abstract.
In recent years, a growing number of cable lines of class 6–500 kV with sections laid in plastic pipes. Also gradually increases the length of such sections, reaching 300–500 m, and now it is possible to find lines where a total of more than half length are placed in the pipes. Consequently, there are some questions about pipes selection and pipes impact on the reliability and efficiency of cable lines. The article describes the main ways to improve long-term permissible current of cables laid in pipes.
Keywords:
cable line, single-core power cable, cable laying in pipes, cable pipes selection, cable thermal calculations
Experience of 110-220 kV cable lines operation in Moscow High-Voltage Networks (branch of PJSC “MOESK”)
SIKAM cable joints. Modern solutions and technologies
Equipment
Electronic current and voltage transformers as measuring instruments for digital substations
We do not stand still
A new line of TSL(Z)-SEShch transformers with reduced electric power losses
Rittal modular solutions with drawout-mounted devices. Made in Russia
IEK: integrated solutions for transmission lines
SMART35 vacuum reclosers implementation for 35 kV small-size substations of oil production enterprises
20 kV Electrical Grids
Analysis of rational power of 20 kV transforming substation in a city district
Abstract.
The natural growth of electrical loads led to the transition of distribution networks to a new voltage class — 20 kV. However, there are still no final solutions on many issues for the new voltage class. One of these is capacity determination for transforming substations. An original model of electrical power supply system for high-density development areas is given (the model allows to consider 20/0.4 kV transforming substation and low voltage distribution networks separately). Rational installed transformers capacity is determined on the basis of presented model.
Keywords:
transforming substation, installed transformer capacity, electrical power supply of cities
Relay Protection
The model of relay protection operation
Abstract.
The paper presents an analytical model for the operation of relay protection of power systems. The model takes into account three groups of failures and functional testing. The model is based on the description of operation process with semi-Markovian process. Through the model, operation and reliability indexes are obtained. Unavailability factor, average repair frequency and inoperative states frequency are among mentioned indexes.
Keywords:
relay protection of power systems, failures of relay protection, relay protection recovery, reliability model of relay protection system, semi-Markovian process
SMART GRID as an integrated approach to improving distribution networks reliability
The ability of short circuits data collection and application using remote control units
Abstract.
The paper presents an attempt to analyze the volume of telemechanics information collected from the feeders of existing 6–20 kV distribution networks. The possibility of using this information is estimated. The information can be used for implementation of additional functions improving the efficiency of dispatching control.
Keywords:
6–20 kV distribution network, relay protection, remote control systems, TOPAZ, networks reconstruction
Requirements for automatic regulators of arc suppression coils in European countries and Russia
Arc suppression coils and their control
Diagnostics
Investigation of methanol formation during accelerated testing of paper insulation in transformer oil
Abstract.
The paper presents the results of methanol formation investigation when accelerated aging of paper insulation in transformer oil (under the temperature effect). All the studied materials (cable paper, transformer oil) are produced domestically. Results of similar studies conducted abroad are presented. Comparison of methanol concentration dependence on the degree of paper insulation polymerization, obtained by Russian and foreign researchers, is executed.
Keywords:
power transformer, methanol formation, paper insulation, aging marker, gas chromatograph
Methods for determining gases dissolved in transformer oil
Comprehensive specialists training in PJSC “Lenenergo” substation equipment maintenanc
e
Results of corporation day of PJSC “IDGC of North-West”
Self-Regulatory Organizations in Power Engineering
Reformation of self-regulation system in the field of construction. What will happen with self-regulatory organizations in power sector?
HUMAN RESOURCE
Experts Opinion
University education for electrical power engineering
Staff Training
Organization of training system and professional education for employees of trade specialties and engineering staff in PJSC “MOESK”
IDGC of Volga, PJSC — professional team
GLOBAL EXPERIENCE
Power Systems Management
Important events in world power systems operation and development in October-November 2016
Exhibitions And Conferences
Review of Study Committee B2 reports presented at CIGRE 2016 session
HISTORY
Operational Dispatch Management Turned 95
An essay on the history of operational dispatch management of Unified Energy System of Russia
Substation’s Anniversary
The first super-high voltage substation 60