Power Substation
Electrical substation introduction and elements
An power substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high or medium to low or the reverse using transformers. Electric power flows through several substations between generating plant and… Read more
Apr 29, 2011 | By Edvard Csanyi
Solar Power
Overview of solar panel types
There are three common technologies used in solar panels, all of which are based on the common element silicon, which makes up a large proportion of the earth. Monocrystalline cells are made from a thin slice or wafer cut from… Read more
Apr 25, 2011 | By Edvard Csanyi
Energy and Power
Improve power transfer with shunt capacitor banks
Shunt capacitor banks are used to an increasing extent at all voltage levels. There are a variety of reasons for this like the growing need for power transfer on existing lines while avoiding transfer of reactive power, better use of… Read more
Apr 24, 2011 | By Edvard Csanyi
News
Eaton: New DC Switchgear Series for Photovoltaic Applications
Eaton’s Moeller Business has added to its portfolio a number of products for DC applications such as photovoltaic or standby battery applications. The new range that is designed for DC voltages up to 1000V comprises DC fuse switch-disconnectors, DC switch-disconnectors… Read more
Apr 22, 2011 | By Edvard Csanyi
Energy and Power
Change output voltage of transformer with taps
Most power transformers have taps on either primary or secondary windings to vary the number of turns and, thus, the output voltage. The percentage of voltage change, above or below normal, between different tap positions varies in different transformers. In… Read more
Apr 20, 2011 | By Edvard Csanyi
Electric Motor
Basic construction of 3-phase AC induction motors you should know
For industrial and mining applications, 3-phase AC induction motors are the prime movers for the vast majority of machines. These motors can be operated either directly from the mains or from adjustable variable frequency drives. In modern industrialized countries, more… Read more
Apr 18, 2011 | By Edvard Csanyi
Maintenance
Maintenance Of Meduim Voltage Circuit Breakers
Medium-voltage circuit breakers rated between 1 and 72 kV may be assembled into metal-enclosed switchgear line ups for indoor use, or may be individual components installed outdoors in a substation. Air-break circuit breakers replaced oil-filled units for indoor applications, but… Read more
Apr 17, 2011 | By Edvard Csanyi
Energy Efficiency
KNX automation makes buildings more efficient
In light of climate change and increasingly scarce resources, the energy-efficient operation of buildings is gaining in importance. Essential requirements for this are an energy-efficient architectural design, an insulated building exterior and modern installation engineering with a high level of… Read more
Apr 15, 2011 | By Edvard Csanyi
Electric Motor
VSD – Power supply connections and earthing
In accordance with accepted practice and the local, power is normally provided to a VSD from a distribution board (DB) or a motor control center (MCC). Adequate arrangements should be made to provide safety isolation switches and short-circuit protection in… Read more
Apr 13, 2011 | By Edvard Csanyi
Energy and Power
Scientist and inventor – Mihailo Pupin
Mihailo (Mihailo Idvorsky) Pupin was born in Idvor, Banat, October 9, 1854. Received his academic education at Columbia College, New York, and his scientific education at the universities of Cambridge, England,and Berlin, Germany. Obtained his Ph.D. degree at the University… Read more
Apr 11, 2011 | By Edvard Csanyi
Energy and Power
Switchboard Construction Basics For Engineers
Power distribution systems are used in every residential, commercial, and industrial building to safely control the distribution of electrical power throughout the facility. Most of us are familiar with the power distribution system found in the average home. Power purchased… Read more
Apr 09, 2011 | By Edvard Csanyi
Renewable Energy
Setting the scene in UK – Why renewable energy?
Energy is at the heart of our society. To date, the developed world has relied predominantly on fossil fuels (coal, oil and natural gas) and nuclear power for energy. Inevitably these will run out and we will need to turn… Read more
Apr 06, 2011 | By Edvard Csanyi
High Voltage
HGI generator circuit breaker – ABB
The circuit-breakers type HGI can be used as generator circuit-breaker in all types of power plants with unit sizes between 60 – 180 MVA and nominal voltages up to 21kV. If used as feeder breakers in industry plants, the nominal… Read more
Apr 05, 2011 | By Edvard Csanyi
Cables
Polyvinyl chloride (PVC) as jacketing material
PVC is the most widely used nonmetallic jacketing material in the wire and cable industry. Starting in 1935, when it first became available, the use of PVC grew rapidly because of its low cost, its easy processing, and its excellent… Read more
Apr 04, 2011 | By Edvard Csanyi
Renewable Energy
Are renewable resources practical?
While few people disagree that renewable energy is a good idea, most also recognize there are two practical barriers to implementation on a wide scale. First, all renewable energy sources, except for hydro-electric power, cost from two to five times… Read more
Apr 01, 2011 | By Edvard Csanyi
