What are the main advantages of HVDC over HVAC transmission
Despite alternating current being the dominant mode for electric power transmission, in a number of applications, the advantages of HVDC makes it the preferred option over AC transmission. Examples include:… Read more
Dec 18, 2013 | By Edvard Csanyi
Germany’s electricity networks outlook – Today and tommorow
Germany’s electricity supply is currently based on a reliable and powerful network infrastructure. But to manage the energy transition, it is essential to keep distribution networks efficiently in balance by… Read more
Dec 16, 2013 | By Edvard Csanyi
An overview of Australia’s electricity transmission networks
In Australia, there are transmission networks in each state and territory, with cross‐border interconnectors that link some networks. The National Electricity Market (NEM) in eastern and southern Australia provides a… Read more
Dec 13, 2013 | By Edvard Csanyi
Example of standard MV/LV network structure
Example network above consists of: MV consumer substation; Two MV ratings: 20 kV and 6 kV; The main MV switchboard fed at 20 kV can be backed up by a… Read more
Dec 11, 2013 | By Edvard Csanyi
Billion Dollar Storms vs U.S. Electric Grid
Severe weather is the single leading cause of power outages in the United States. Outages caused by severe weather such as thunderstorms, hurricanes and blizzards account for 58 percent of… Read more
Dec 09, 2013 | By Edvard Csanyi
An overview of the transmission and distribution network of New Zealand
The national grid has approximately 12,000 km of high voltage transmission lines. Most of the grid operates on alternating current (the HVAC system), although there is a direct current (HVDC)… Read more
Dec 06, 2013 | By Edvard Csanyi
15 hypothesis responsible for the aging of composite insulators
Most technical work concentrates on the aging of nonceramic insulators and the development of test methods that simulate the aging process. Transmission lines operate in a polluted atmosphere. Inevitably, insulators… Read more
Dec 04, 2013 | By Edvard Csanyi
In Front Of The Third Electrical Systems Revolution in United States
A dizzying array of new energy technologies are reaching or nearing the marketplace. Newer choices to generate electricity include fuel cells, wind turbines, solar cells and microturbines. Energy storage is… Read more
Dec 02, 2013 | By Edvard Csanyi
General principles of electricity supply systems
The generation of electricity in most modern power stations is at 25 kV, and this voltage is then transformed to 400 kV for transmission. Virtually all the generators of electricity… Read more
Nov 25, 2013 | By Edvard Csanyi
Guidelines For The Construction And Maintenance Of Transmission Lines
The purpose of this article is to give a general overview of the steps that are necessary in the planning and construction of a typical overhead transmission line, to give… Read more
Nov 13, 2013 | By Edvard Csanyi
The Need for Load Shedding In Generating, Transmission and Distribution Systems
The need for load shedding generally arises from unforeseen causes, lack of sufficient power supply from deficiencies in generating, transmission and distribution capabilities. These conditions may stem from unusually higher… Read more
Nov 11, 2013 | By Edvard Csanyi
Total Losses in Power Distribution and Transmission Lines
Power generated in power stations pass through large and complex networks like transformers, overhead lines, cables and other equipment and reaches at the end users. It is fact that the… Read more
Aug 19, 2013 | By jiguparmar
Where do the strongest electric and magnetic fields come from in a power substation?
Electric substations produce electric and magnetic fields. In a substation, the strongest fields around the perimeter fence come from the transmission and distribution lines entering and leaving the substation. The… Read more
Aug 05, 2013 | By Edvard Csanyi
Talking about HV shunt reactor switching (part 2)
Continued from first part: Talking About HV Shunt Reactor Switching (part 1) Scope (explained in previous part) Shunt reactors application (explained in previous part) Closing operation (explained in previous part)… Read more
Jul 31, 2013 | By Nicola
Talking about HV shunt reactor switching (1)
These notes aim to give basic idea of the main criticalities related to HV shunt reactor switching, particularly in terms of voltage, and how such problems are faced and solved… Read more
Jul 29, 2013 | By Nicola