What happens when the wind doesn’t blow?
One of the questions most often asked about wind power is ‘what happens when the wind doesn’t blow’. In the big picture wind is a vast untapped resource capable of… Read more
Mar 07, 2011 | By Edvard Csanyi
Early years of Nikola Tesla
Nikola Tesla was born “at the stroke of midnight” with lightning striking during a summer storm. He was born in Croatia in the Austro-Hungarian Empire. The midwife commented, “He’ll be… Read more
Mar 05, 2011 | By Edvard Csanyi
Economics of GIS
The equipment cost of GIS is naturally higher than that of AIS due to the grounded metal enclosure, the provision of an LCC, and the high degree of factory assembly…. Read more
Mar 04, 2011 | By Edvard Csanyi
District heating – Heat from a central boiler plant
District heating is a system which provides a number of buildings with heat from a central boiler plant through pre-insulated pipes. Pre-insulated pipes are in fact a modern kind of… Read more
Mar 03, 2011 | By Edvard Csanyi
History of the development of busbar protection
Up to the mid 1930’s, no widescale efforts had been made to protect busbars on a unit basis. Also there was reluctance in arranging one protective equipment to cause simultaneous… Read more
Mar 02, 2011 | By Edvard Csanyi
How to improve the power quality with harmonic filters
In electrical plants the loads draw from the network electric power (active) as power supply source (e.g. personal computers, printers, diagnostic equipment, etc.) or convert it into another form of… Read more
Mar 01, 2011 | By Edvard Csanyi
What Do You Need To Know When Connecting Solar Electric System to the Utility Grid
In the past, most homes with solar electric systems were not connected to the local utility grid. It made sense to install solar electric systems in areas without easy assess… Read more
Feb 28, 2011 | By Edvard Csanyi
Transformer Winding Temperature Thermometer
These devices are supposed to indicate hottest spot in the winding based on the manufacturers heat run tests. At best, this device is only accurate at top nameplate rated load… Read more
Feb 25, 2011 | By Edvard Csanyi
How To Use A Digital Multimeter
A digital multimeter is used to make various electrical measurements, such as AC and DC voltage, AC and DC current, and resistance. It is called a multimeter because it combines… Read more
Feb 23, 2011 | By Edvard Csanyi
Protection Relay – ANSI Standards
In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices… Read more
Feb 22, 2011 | By Edvard Csanyi
What Is Modulation?
Modulation is the use of one electrical signal to “control” a primary variable of another. For example, if an audio signal voltage is used to control the “amplitude” of a… Read more
Feb 20, 2011 | By Sa'ad Eddin
IP Protection Degree (IEC 60529) Explained
The protection of enclosures against ingress of dirt or against the ingress of water is defined in IEC529 (BSEN60529:1991). Conversely, an enclosure which protects equipment against ingress of particles will… Read more
Feb 19, 2011 | By Edvard Csanyi
Technology Innovation Is Everybody’s Business!
For close to 10,000 years, science and technology have been at the heart of economic growth and social prosperity. From the agricultural revolution to the information revolution, advances in society… Read more
Feb 18, 2011 | By Edvard Csanyi
What Light Source To Choose?
One of the first decisions in the design of a good lighting system is the choice of a light source. A number of light sources are available, each with its… Read more
Feb 17, 2011 | By Edvard Csanyi
iFIX Scada Features
iFIX offers a robust SCADA engine, rich set of connectivity options, open architecture and highly scalable and distributed networking model. Used in a variety of applications across diverse industries, it… Read more
Feb 15, 2011 | By Edvard Csanyi