Edvard Csanyi
1671 awesome technical articles
Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV/MV switchgears and LV high power busbar trunking (<6300A) in power substations, commercial buildings and industry facilities. Professional in AutoCAD programming.
Industrial Automation
How Stuxnet (PLC virus) spreads – Part 1
The Stuxnet worm is a sophisticated piece of computer malware designed to sabotage industrial processes controlled by Siemens SIMATIC WinCC and PCS 7 control systems. The worm used both known… Read more
Jul 20, 2011 | By Edvard Csanyi
Lighting
Visibility and visual performance of good lighting
Human beings need to be informed about their surroundings in order to perform their activities in an easy and harmless fashion. Most information about the environment reaches human beings through… Read more
Jul 18, 2011 | By Edvard Csanyi
Wind Power
What Size Wind Turbine Do I Need?
The size of the wind turbine you need depends on your application. Small turbines range in size from 20 watts to 100 kilowatts. The smaller or “micro” (20–500-watt) turbines are… Read more
Jul 16, 2011 | By Edvard Csanyi
News
ABB – The world’s first renewable energy island
A Spanish island in the Atlantic Ocean is set to become the first island in the world to be powered solely by renewable energy. The $87 million project will provide… Read more
Jul 15, 2011 | By Edvard Csanyi
High Voltage
GIS vs AIS – Life cycle assessment
In order to ensure the future supply of electricity we require sustainable concepts that preserve resources and do not harm our environment. Humankind needs a reliable and secure power supply… Read more
Jul 14, 2011 | By Edvard Csanyi
Energy and Power
Fire Protection Measures
The measures to mitigate or lessen fire hazards are normally called “fire protection measures”. The National Fire Protection Association NFPA (U.S. organization charged with creating and maintaining minimum standards and… Read more
Jul 13, 2011 | By Edvard Csanyi
High Voltage
Power Fuses in High Voltage
Power fuses are a generally accepted means of protecting power transformers in distribution substations. The primary purpose of a power fuse is to provide interruption of permanent faults. Fusing is… Read more
Jul 11, 2011 | By Edvard Csanyi
Solar Power
Long history of solar energy
As with hydropower, solar energy has a long history. Many pre-historic cultures used it to warm their dwellings, dry their clothes, and cure their food. The importance of solar energy… Read more
Jul 10, 2011 | By Edvard Csanyi
Energy and Power
Fuses – Principles of design and operation
A fuse consists of a replaceable part (the fuselink) and a fuse holder. Examples of fuse holders are shown in Fig. 1. The simplest fuselink is a length of wire…. Read more
Jul 09, 2011 | By Edvard Csanyi
Energy and Power
Area classification in potentially explosive atmospheres
Area classification defines hazardous areas on the basis of the probability of a flammable atmosphere being present. It is a legal requirement under DSEAR for any employer whose business involves… Read more
Jul 08, 2011 | By Edvard Csanyi
Energy and Power
Generator tripping as stability control
Generator tripping is an effective (cost-effective) control especially if hydro units are used. Tripping of fossil units, especially gas- or oil-fired units, may be attractive if tripping to house load… Read more
Jul 06, 2011 | By Edvard Csanyi
SCADA
SCADA communication vulnerabilities
Cyber security engineering is expensive. However, the presence of vulnerabilities requires it. In this section we list vulnerabilities we typically see in SCADA systems. The order in the list of… Read more
Jul 04, 2011 | By Edvard Csanyi
Energy Efficiency
Setting circuit breaker tripping with MS Excel spreadsheet
The protective unit of circuit breaker MUST fulfill: Instantaneous trip setting Im < Iscmin for a circuit-breaker Fusion current Ia < Iscmin for a fuse The protective unit (or device)… Read more
Jul 02, 2011 | By Edvard Csanyi
Energy and Power
Fuel cells in power section
In 1839, a British Jurist and an amateur physicist named William Grove first discovered the principle of the fuel cell. Grove utilized four large cells, each containing hydrogen and oxygen,… Read more
Jul 01, 2011 | By Edvard Csanyi
Wind Power
Large and Small Wind Turbines are Different
Wind turbines are generally divided into two broad categories based on their rated capacity and their intended applications. Small wind turbines are typically less than 50 kW in size, but… Read more
Jun 29, 2011 | By Edvard Csanyi
