Energy and Power
General Arrangement of Hydropower Powerhouse
In general, a powerhouse in hydropower plant may be divided into three areas: The main powerhouse structure, housing the generating units and having either separate or combined generator and turbine… Read more
Oct 16, 2013 | By Edvard Csanyi
Energy and Power
An Overview Of Grounding System (Grounded)
Continued from technical article: An Overview Of Grounding System (Ungrounded) Solidly grounded system Resistance grounded system Reason for resistance grounding System earthing at EHV level Let us assume that R… Read more
Oct 14, 2013 | By Asif Eqbal
Energy and Power
An Overview Of Grounding System (Ungrounded)
Ungrounded system Derivation of current expression in ungrounded system Advantages & disadvantages of ungrounded system Concept of effective and non-effective grounding Coefficient of earthing and earth fault factor Before 1950… Read more
Oct 11, 2013 | By Asif Eqbal
Energy and Power
4 General Safety Practices To Remember ALWAYS!
In addition to the safety precautions (access to HV enclosures and work on HV electrical equipment) the following general safety practices should be ALWAYS observed for work on electrical equipment…. Read more
Oct 09, 2013 | By Edvard Csanyi
Energy and Power
What’s Really Important When You’re Designing The Low Voltage Switchgear?
Here what’s important when you’re designing the low voltage switchgear: Device Application in the Supply Circuit Short-circuit strength Release (Trip Unit) Device Application in Supply Circuits (Coupling) Device Application in… Read more
Oct 07, 2013 | By Edvard Csanyi
Electrical Lectures
Heat vs. Current in a Resistor
It is converted from one form to another. One of the most familiar forms of energy is heat. When a current (I) is forced through a resistor (R) by applying… Read more
Oct 04, 2013 | By Edvard Csanyi
Electrical Lectures
What Is a Good Ground Resistance Value?
The goal in ground resistance is to achieve the lowest ground resistance value possible, that makes sense economically and physically, when contacting the earth, also known as the soil/ground rod… Read more
Oct 02, 2013 | By Edvard Csanyi
Energy and Power
5 Most Common Offshore Oil and Gas Production Facility Types (You Can See Today)
Offshore, depending on size and water depth, a whole range of different structures are used. In the last few years, we have seen pure sea bottom installations with multiphase piping… Read more
Sep 25, 2013 | By Edvard Csanyi
Energy and Power
An Overview Of Control (Ice Cube) Relays
An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices, they exhibit simple “on” and “off” behavior with no intermediate states. The electronic schematic symbol… Read more
Sep 18, 2013 | By Edvard Csanyi
Energy and Power
Comparison Of Neutral Earthing Methods
Neutral earthing systems are very similar to circuit breakers in that they do nothing until something in the system goes wrong! There are several methods for system earthing which can… Read more
Sep 16, 2013 | By Edvard Csanyi
Energy and Power
Lightning And Surge Protection For Cable Networks And Antennas For TV (Part 2)
Continued from part one: Lightning And Surge Protection For Cable Networks And Antennas For TV (Part 1) If an antenna is protected by isolated air-termination systems it means: – That… Read more
Sep 13, 2013 | By Edvard Csanyi
Energy and Power
Lightning And Surge Protection For Cable Networks And Antennas For TV (Part 1)
IEC 60728-11 complies with the state of the art and offers easy, standardized and effective protective mechanisms against the effects of lightning strikes into antennas. Antennas installed according to this… Read more
Sep 09, 2013 | By Edvard Csanyi
Cables
Selection Of Number Of Cable Cores With Emphasis On Sizing Parameters
The selection of number of cable cores basically depends on the type of system where it is going to be installed. Generally we have two types of systems: A perfectly… Read more
Sep 06, 2013 | By Chirag Singhal
Energy and Power
Determining the soil resistivity to design a good substation grounding system
It is essential to determine the soil resistivity and maximum grid currents to design a substation grounding system. The touch and step voltages are directly proportional to these values. Overly… Read more
Sep 04, 2013 | By Edvard Csanyi
Energy and Power
Hey Tesla, get married, be happy and sleep o’nights! – AMERICAN ELECTRICIAN, July 1, 1896
This articles appeared at AMERICAN ELECTRICIAN on July 1, 1896 by journalist Edward J. Wessels. Our sprightly contemporary, the Electrical Journal, takes issue with Mr. Nikola Tesla as to the undesirability of marriage… Read more
Aug 24, 2013 | By Edvard Csanyi
