Renewable Energy
Renewable Energy Outlook – Wind Power
With the exception of hydroelectric power, the wind-power industry is far more developed than most other types of renewable energy. Over the past decade, the technology associated with wind power has improved significantly. In addition, wind turbines that generate the… Read more
Mar 10, 2012 | By Edvard Csanyi
Maintenance
Sudden pressure relay in oil-filled power transformer
Internal arcing in an oil-filled power transformer can instantly vaporize surrounding oil, generating gas pressures that can cause catastrophic failure, rupture the tank, and spread flaming oil over a large area. This can damage or destroy other equipment in addition… Read more
Mar 08, 2012 | By Edvard Csanyi
Energy and Power
The real truth behind household power savers
A household power low voltage saving devices has recently received a lot of attention from both consumers and manufacturers. It is generally used in residential homes to save energy and to reduce electricity bills. It is a small device which… Read more
Mar 07, 2012 | By Jignesh Parmar
High Voltage
Using HVDC Technology For Transmitting Electricity
An alternate means of transmitting electricity is to use high-voltage direct current (HVDC) technology. As the name implies, HVDC uses direct current to transmit power. Direct current facilities are connected to HVAC systems by means of rectifiers, which convert alternating… Read more
Mar 05, 2012 | By Edvard Csanyi
Energy and Power
Coal handling plant in a thermal power generating station
In a coal based thermal power plant, the initial process in the power generation is “Coal Handling”. So in this article i will discuss the overall processes carried out at a Coal Handling plant in a coal based thermal power… Read more
Mar 04, 2012 | By Bipul Raman
Electrical Lectures
Capacitor Banks In Power System (part three)
Continued from part two – Capacitor Banks In Power System (part two) Capacitor units shall be suitable for continuous operation at an RMS current of 1.30 times the current that occurs at rated sinusoidal voltage and rated frequency, excluding transients…. Read more
Mar 03, 2012 | By Asif Eqbal
Electrical Lectures
Capacitor Banks In Power System (part two)
Continued from part one – Capacitor Banks In Power System (part one) It should be noted that in an inductance the current lags the voltage by 90 degrees and in a capacitor the current leads the voltage by 90 degrees…. Read more
Mar 01, 2012 | By Asif Eqbal
Electric Motor
Why do we find electric motor drive very important?
Electric motors impact almost every aspect of modern living. Refrigerators, vacuum cleaners, air conditioners, fans, computer hard drives, automatic car windows, and multitudes of other appliances and devices all use electric motors to convert electrical energy into useful mechanical energy…. Read more
Feb 29, 2012 | By Edvard Csanyi
Electrical Lectures
Capacitor banks in power system (part 1)
When a charge is delivered to a conductor its potential is raised in proportion to the quantity of charge given to it. At a particular potential a conductor can hold a given amount of charge. Capacitance is the term to… Read more
Feb 27, 2012 | By Asif Eqbal
Electrical Lectures
How to explain your kids, what is the electricity?
It’s really not an easy task to explain kids what is the electricity and what is really happening in the wires while lamp is powered, or what are the magnets, magnetism and how all this stuff works. Most important of… Read more
Feb 26, 2012 | By Edvard Csanyi
Electronics
Under the Hood of Light Detector
Detectors of electromagnetic radiation in the spectral range from ultraviolet to far infrared are called light detectors. From the standpoint of a sensor designer, absorption of photons by a sensing material may result either in a quantum or thermal response…. Read more
Feb 24, 2012 | By Edvard Csanyi
Energy and Power
Zero Emission Power Plant, Without Carbon Dioxide
India is the world’s fourth largest economy and has a fast growing energy market. India’s current power capacity is 30% short of demand. Coal and petroleum are the primary sources of energy. High ash content in Indian coal and inefficient… Read more
Feb 22, 2012 | By vinod ramireddy
Metering
Voltage Instrument Transformer (VT) – Introduction
Instrument transformers are primarily used to provide isolation between the main primary circuit and the secondary control and measuring devices. This isolation is achieved by magnetically coupling the two circuits. In addition to isolation, levels in magnitude are reduced to… Read more
Feb 20, 2012 | By Edvard Csanyi
Renewable Energy
Fossil fuels are almost gone… Solar Energy? Hell Yes!!
Solar energy is not a finite resource as fossil fuels are. While the sun is up there it constantly produces all the energy we can use. While not maintenance free, what technology really is? Once solar panels, wind or water… Read more
Feb 17, 2012 | By Edvard Csanyi
High Voltage
Protection and Relays Used In Main Circuit Board at a Power Grid Substation
The DMH type relay provides high speed biased differential protection for two or three winding transformers. The relay is immune to high inrush current and has a high degree of stability against through faults. It requires a max of two… Read more
Feb 17, 2012 | By Bipul Raman
