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19 февраля 2018
«ЭЛЕКТРОЭНЕРГИЯ. Передача и распределение» № 1(46), январь-февраль 2018
КИБЕРБЕЗОПАСНОСТЬ
КАЧЕСТВО ЭЛЕКТРОЭНЕРГИИ
КАЧЕСТВО ЭЛЕКТРОЭНЕРГИИ
СЕТИ 20 КВ
ВОЗДУШНЫЕ ЛИНИИ
КАБЕЛЬНЫЕ ЛИНИИ
ОБОРУДОВАНИЕ
TABLE OF CONTENTS
TECHNICAL COUNCIL
Transition to the new digital architecture for power grid facilities
EVENTS
Russian power grids 2017
Power grid development: Challenges and prospects
DIGITAL NETWORK
Extended offsite meeting of IDGC of South, PJSC technical council
Digital technology at the present time
CYBERSECURITY
Experience in creating and implementing the information security system for power grid company
VECTOR OF DEVELOPMENT
The register of IDGC of Centre, PJSC proposals is updated with new developments of employees
JSC “UNECO” and CJSC “SuperOks” joint initiative received the status of national project
Engineering of the construction site for electrical networks
TECHNOLOGICAL CONNECTION
For public ends and for the good of applicants
POWER QUALITY
Modern measures of power quality assurance in electrical networks and on the consumer buses
Voltage balancing in railway power supply systems
Abstract.
The paper considers required measures for implementing voltage balancing and reactive power compensation in external power supply systems of electric railway.
Keywords:
power supply of railways, asymmetric loads, voltage balancing, power quality
ELECTRIC POWER METERING
Mobile breakthrough in electric power metering in IDGC of Center and Volga Region, PJSC
20 KV ELECTRICAL GRIDS
Analysis of 20 kV electrical networks topology according to the criteria of optimization, observability and energy efficiency
OVERHEAD TRANSMISSION LINES
Intelligent ice-melting system for IDGC of South, PJSC overhead conductors and lightning protection cables based on universal ice melting equipment
Abstract.
The paper considers problems with overhead transmission lines gust-and-glaze loading in IDGC of South, PJSC electrical networks during autumn and winter period. Intelligent ice-melting system for overhead conductors and lightning protection cables based on universal ice melting equipment is proposed. Comparison of the system with generally accepted methods and installations is carried out. Efficiency of the system for application on 35 and 110 kV overhead lines of “Rostovenergo” (Branch of IDGC of South, PJSC) is demonstrated.
Keywords
:glaze formation, ice melting, innovation, system for forecasting, early detecting and control of ice formation, intelligent ice melting system, extension cord, technical-and-economic efficiency
CABLE LINES
Longitudinal parameters of cable lines 6–500 kV with single-core cables
Abstract
. Already more than 10–15 years in all classes of rated voltages from 6 kV and higher in Russia and in the world are being widely used single-core cables with XLPE insulation. Unfortunately, the normative documents and cable instructions still did not have easy methods to calculate longitudinal cable parameters that would allow to determine the series active and inductive impedance for direct and zero sequence depending on the cable sheath grounding scheme. The article offers the simple method.
Keywords:
cable line, single-phase cable, cross-linked polyethylene, the longitudinal impedance of the line, direct sequence, zero sequence, sheath grounding
DC superconducting cables and prospects of long-distance transmission lines creation based on those cables
Abstract
. The possibility of energy bridges construction using superconducting technologies based on previously obtained experimental and theoretical results is shown. Power transmission capacity, total length of the line, maximum distance between the cryogenic stations, as well as the energy losses and required power of the cryogenic station are estimated. It is demonstrated that creation of superconducting transmission lines with power about 10 GW and any length is possible taking into account current level of superconducting and cryogenic technology development. It is shown that cryogenic stations should be placed along the transmission line with a maximum step of 45-75 km. The possibility of increasing the distance between cryogenic stations by improving the cryostats thermal isolation is discussed.
Keywords:
high-temperature superconductivity, superconducting and cryogenic technology, cryogenic equipment, long-distance cable lines
Polymer pipes for cable lines
Go through fire, water and polymer pipes
EQUIPMENT
Use of explosives in high-speed commutators of high-voltage current-limiting devices
Abstract.
The main element of the modern current-limiting device designed to operate on the line voltage up to 110 KV, is a fast-blast switch, which is composed of various explosives. The explosive switch to standby mode is exposed to different physical and chemical parameters. The results of experimental studies of the influence of the operating parameters (temperature, vibration, thermolysis) are shown in the work. The methodology and results of the evaluation of physical and chemical resistance of different types of explosives used in blasting fast switches are presented.
Keywords:
current-limiting device, explosive commutator, physical and chemical resistance, thermolysis
“Siemens” vacuum technologies
Revisiting the operation of VMT circuit-breakers
DIAGNOSTICS AND MONITORING
Modern approaches to technical diagnosis
Individual temperature correction
INDUSTRIAL INJURIES
Constant monitoring is necessary
GLOBAL EXPERIENCE
Disrupting the energy landscape, block by block
JOURNEY THROUGH THE PAST
Principal directions of academician N.N. Tikhodeev scientific activity
(To the 90th anniversary of N.N. Tikhodeev)
