Edvard Csanyi
1758 awesome technical articles
Hi, I'm an electrical engineer, programmer and founder of EEP - Electrical Engineering Portal. I worked twelve years at Schneider Electric in the position of technical support for low- and medium-voltage projects and the design of busbar trunking systems.
I'm highly specialized in the design of LV/MV switchgear and low-voltage, high-power busbar trunking (<6300A) in substations, commercial buildings and industry facilities. I'm also a professional in AutoCAD programming.
Biography: https://electrical-engineering-portal.com/edvard-csanyi
Energy and Power
What is the purpose of equipotential bonding?
Equipotential bonding is essentially an electrical connection maintaining various exposed conductive parts and extraneous conductive parts at substantially the same potential. An earthed equipotential zone is one within which exposed conductive parts and extraneous conductive parts are maintained at substantially… Read more
Sep 20, 2012 | By Edvard Csanyi
High Voltage
Design of Overhead Transmission Line Foundation
The foundation is the name given to the system which transfers to the ground the various steady state (dead) and variable (live) loads developed by the transmission tower and conductors. Foundations may be variously subjected to compressive or bearing forces,… Read more
Sep 19, 2012 | By Edvard Csanyi
Transformers
Differences between Shunt Reactor and Power Transformer
Shunt Reactor and Transformer both appear similar in construction. Reactors are also often equipped with Fans for cooling similar to Power Transformers. However, there are major differences between the two. While a Power Transformer is designed for efficient power transfer… Read more
Sep 18, 2012 | By Edvard Csanyi
Energy and Power
Definition of Harmonics and Their Origin
The Fourier theorem states that all non-sinusoidal periodic functions can be represented as the sum of terms (i.e. a series) made up of: A sinusoidal term at the fundamental frequency, Definition of Harmonics and Their Origin Sinusoidal terms (harmonics) whose… Read more
Sep 17, 2012 | By Edvard Csanyi
Energy and Power
Functions Performed by Electrical Switchgear
National and international standards define the method for making electrical distribution circuits as well as the purpose and functions of switchgear. There are three main functions, namely: Circuit protection takes three main fault types into account: Overloads, Short-circuits (Both of which… Read more
Sep 14, 2012 | By Edvard Csanyi
Metering
Analog signals in measurement and control of physical processes
Instrumentation is a field of study and work centering on measurement and control of physical processes. These physical processes include pressure, temperature, flow rate, and chemical consistency. An instrument is a device that measures and/or acts to control any kind… Read more
Sep 13, 2012 | By Edvard Csanyi
Energy and Power
Nikola Tesla – Everything is the Light
Once, in 1899, Nikola Tesla had an interview with certain journalist John Smith, when Tesla said “Everything is the Light“. In one of its rays is the fate of nations, each nation has its own ray in that great light source,… Read more
Sep 12, 2012 | By Edvard Csanyi
Hydropower
Things You Should Know Before Planning of Hydroelectric Facilities
Hydroelectric plants are located in geographic areas where they will make economic use of hydraulic energy sources. Hydraulic energy is available wherever there is a flow of liquid and head. Head represents potential energy and is the vertical distance through… Read more
Sep 07, 2012 | By Edvard Csanyi
Energy and Power
Transformer Heat, Copper and Iron Losses
The thermal ratings of a transformer are determined by the following three factors: The amount of heat produced in the windings and connections. The amount of heat produced in the iron core. How effectively the heat can be removed from… Read more
Sep 06, 2012 | By Edvard Csanyi
Protection
Transformer differential protection (ANSI 87T)
Transformer differential protection protects against short-circuits between turns of a winding and between windings that correspond to phase-to-phase or three-phase type short-circuits. If there is no earthing connection at the transformer location point, this protection can also be used to… Read more
Sep 05, 2012 | By Edvard Csanyi
HVAC
How to Maximize Chiller Efficiency?
Chillers are the single largest energy-using component in most facilities, and can typically consume over 50% of the electrical usage. Chillers use approximately 20% of the total electrical power generated in North America and the U.S. Department of Energy estimates… Read more
Sep 04, 2012 | By Edvard Csanyi
Power Substation
Transformers Connected Directly to Generators
Power transformers connected directly to generators can experience excitation and short-circuit conditions beyond the requirements defined by ANSI/IEEE standards. Special design considerations may be necessary to ensure that a power transformer is capable of withstanding the abnormal thermal and mechanical aspects that… Read more
Sep 01, 2012 | By Edvard Csanyi
Transformers
Using Tap Changers to Match the System Voltage
A transformer’s rated voltage may not match the system voltage exactly, or it may be necessary to raise or lower the output voltage to supply a certain load. In these cases, a portion of a winding can be removed or… Read more
Aug 31, 2012 | By Edvard Csanyi
Electric Motor
Motor protection depending on size and voltage level
Motor protections vary widely depending on the size of the motor and voltage level involved, thus only the more common ones are discussed in this technical article. Index Motor Instantaneous Over-current Protection Motor Timed Over-Current Protection Thermal OverLoad Motor Ground… Read more
Aug 30, 2012 | By Edvard Csanyi
Transformers
Purpose of Shielded Isolation Transformer
A shielded transformer is a two-winding transformer, usually delta–star connected and serves the following purposes: – Voltage transformation from the distribution voltage to the equipment’s utilization voltage. – Converting a 3-wire input power to a 4-wire output thereby deriving a separate stable… Read more
Aug 29, 2012 | By Edvard Csanyi
