20 февраля 2016
«ЭЛЕКТРОЭНЕРГИЯ. Передача и распределение» № 1(34), январь-февраль 2016
ЭЛЕКТРОСНАБЖЕНИЕ
ЭЛЕКТРОСНАБЖЕНИЕ
РЕЛЕЙНАЯ ЗАЩИТА И АВТОМАТИКА
РЕЛЕЙНАЯ ЗАЩИТА И АВТОМАТИКА
ОХРАНА ТРУДА
КОММУНАЛЬНАЯ СРЕДА
“Electric power. Transmission and distribution”
No. 1(34), January-February, 2016
TOPIC OF INTEREST
Interview of the Day
We see great potential of digital substations
Guest of the Journal
“Experience is a big wealth”, – Viktor Miller
RUSSIAN POWER GRIDS
Events
Examination in the times of crisis challenge
Electrical Power Supply
Non-payment problem in power engineering. From disconnections to smart grid
Сoncept of uninterruptible power supply indexes monitoring system for Moscow Region power users
Abstract.
The paper presents the structure of the system under development for uninterruptible power supply indexes monitoring. Functional description and main structural elements of this system are given. It is shown that components of automatic system for commercial measurement of power consumption, structural units of implemented smart voltage control system for 6–20/0.4 kV networks and installed multifunction metering devices can be used as information sources for the monitoring system operation. The main categories of system users and available information for each category are given. The main stages of monitoring system implementation are proposed.
Keywords:
uninterruptible power supply, power failure, overvoltage, uninterruptible power supply indexes monitoring
Increase of power supply systems reliability under conditions of negative external effects
Abstract.
The paper considers the problematic issues of power supply systems under conditions of negative external effects from affecting factors of various sources of emergencies. Technical decisions to increase power supply reliability and to ensure the electrical networks resilience are described.
Keywords:
power supply system, increase of reliability, loss minimization, power shortage, critical load
Technological Connection
Completion of technological connection to electrical network by means of Public Services Portal of the Russian Federation
Tariffs
Territorial electrical grids development with consideration of distributed generation
Overhead Transmission Lines
Application of remote sensing methods for overhead transmission lines inspection
Cable Lines
6–500 kV single-phase cable screens grounding and the distance from the joint to the link box
Abstract.
Single-core a number of features, and one of them is the presence of induced currents in double end grounded copper screens which resulting in addition active power losses. For power reduction there are some technical solutions like one end screens grounding or screens transposition. In particular, one of the pressing questions is, are there any restrictions on the length of the connecting wires, which connect transposition joints with link boxes.
Keywords:
cable line, single-phase cable, cross-linked polyethylene insulation, earthed screens, screens transposition, link boxes, overvoltage protection
Way towards new heights
Reasonable costs approach as the key to sustainability during difficult period
“Progress” cable joints proved their reliability
Electrical Substations
500 kV power plant outdoor switchgears without portals
Abstract.
Outdoor switchgears without portals with one and a half breaker bus systems and 4/3 breakers bus systems are designed for power systems of Russia and other countries that operate 500 kV backbone power lines and generate electric power by means of thermal, nuclear and hydro power plants. There is no bus arrangement around circuit breakers in all switchgears. It creates favorable conditions for quick and safe circuit breaker cells replacement. Constructional units with double-deck rigid tubular buses give a possibility to avoid construction of bulky resource-demanding portals and busbar system portals in outdoor switchgear. Application of those constructional units provides a significant reduction of land dedicated to outdoor switchgears, reduction in consumption of construction materials and an increase instructural reliability. Besides, the value of outdoor switchgears building and costs for repair and maintenance of equipment are declined. Developed constructional units can also be used for other bus connection schemes such as mesh-connected scheme, “transformer-buses” scheme and others. Technical decisions can be used for advanced development of 300 and 400 kV outdoor switchgears.
Keywords:
outdoor switchgears without portals, bus arrangement, operational factors
Diagnostics
Assessment of fire hazard for contact connections in electrical circuits
High-voltage equipment diagnostics in PJSC “MOESK”
Equipment
An art of living
Relay Protection and Automation
Automation of “Yartsevo-2” 110/10 kV substation with IEC-61850
Special features of integration of relay protection and automation devices and remote control units into 6-20 kV distribution networks
The way of CJSC “RADIUS Avtomatika” from hi-end options to budget choice
“Feniks Kontakt RUS” rises to a new level
Exhibitions and Conferences
“Electrical Power Engineering: Viewpoint of the Youth – 2015”
Conference in FGAOU DPO “PEIPK”
LABOR SAFETY
Safety
Production management leadership in the context of labor safety and leadership rebranding
EXPERT’S OPINION
Results of power engineering reforms and problems of utilities operation
Improvement of power engineering management models after reforms
JOURNEY THROUGH THE PAST
Construction of Transmission Lines
500 kV unique transmission lines on mountainous district of Kirghiz power system
GLOBAL EXPERIENCE
Power Systems Management
Important events in world power systems operation and development in the second half of 2015