Edvard Csanyi
1750 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
Power Substation
Satellite communication for remote control and monitoring of substations
Substation Automation is a supervisory management and control system that lies in between transmission and distribution systems. The interests on substation automation have been increasing rapidly due to its numerous benefits to utilities. It has advanced further than a traditional… Read more
Jul 28, 2014 | By Edvard Csanyi
Cables
What engineers should know about using conduits in power substation designs
There are several locations where conduit is used in power substation designs. The most common one considered is conduit used to provide cable access to equipment, such as breakers, transformers, instrument transformers, and motor-operated disconnect switches located in the yard… Read more
Jul 25, 2014 | By Edvard Csanyi
High Voltage
An Example of Choosing 138 kV Line Circuit Breaker
To better understand a process of high voltage equipment selection, let’s discuss an example of choosing 138 kV Line #3 Circuit Breaker, shown in Figure 1, assuming that the following information about the system is available: The following information about… Read more
Jul 23, 2014 | By Edvard Csanyi
Testing and Commissioning
Testing of Power Transformer – Measurement of Zero-Sequence Impedance
The zero-sequence impedance is usually measured for all star-connected windings of the transformer. The measurement is carried out by supplying a current of rated frequency between the parallell connected phase terminals and the neutral terminal. The zero-sequence impedance per phase… Read more
Jul 21, 2014 | By Edvard Csanyi
Low Voltage
10 Important Precautions When Working On Low Voltage Energized Equipment
For most work, the electrical equipment must be de-energized because there is a high risk of injury to workers if they work on energized equipment. It may be possible to schedule such work outside of normal work hours to limit the inconvenience. Sometimes… Read more
Jul 18, 2014 | By Edvard Csanyi
Energy and Power
How to get rid off the harmonics in electrical system?
The subject of harmonics is also a contributory factor in electrical noise I already wrote few days ago (Cable spacing as a means of noise mitigation). It also causes several other problems in power circuit components such as motors, transformers and capacitor… Read more
Jul 16, 2014 | By Edvard Csanyi
Electric Motor
13 features and advances of using electronic soft starters for a motor starting
Soft starters serve for a continuous adjustment of the starting characteristic of three-phase asynchronous motors to the requirements of the load by controlling the voltage across the motor and enable for an optimum integration of the drives in process control… Read more
Jul 14, 2014 | By Edvard Csanyi
Cables
Cable spacing as a means of noise mitigation
In situations where there are a large number of cables varying in voltage and current levels, the IEEE 518-1982 standard has developed a useful set of tables indicating separation distances for the various classes of cables. There are four classification… Read more
Jul 11, 2014 | By Edvard Csanyi
Medium Voltage
Microprocessor and conventional secondary systems compared
Secondary systems are all those facilities needed to ensure reliable operation of the primary system, e.g. a high voltage substation. They cover the functions of controlling, interlocking, signalling and monitoring, measuring, counting, recording and protecting. With conventional secondary systems, the… Read more
Jul 09, 2014 | By Edvard Csanyi
Energy and Power
Harmonic distortion and high frequency applications
The presence of harmonic frequencies in addition to the fundamental 50Hz, bring about distortion of the fundamental sine wave. Considerable problems may arise dependant upon the level of this distortion. Sources of harmonic distortion can be: Variable Speed Drives UPS… Read more
Jul 07, 2014 | By Edvard Csanyi
Energy and Power
How the Weather Affects Conductors
Notice how a conductor is strung between poles. It is not pulled tight; it sags. In hot weather it sags even more than in cold weather. Consider the analogy of the clothesline. A tightly strung clothesline as shown in Figure… Read more
Jul 04, 2014 | By Edvard Csanyi
Protection
Protection Against Overexcitation Of a Transformer
Overexcitation of a transformer means that the magnetic flux in the core is increased above the normal design level. This will cause an increase of the magnetizing current and the transformer can be damaged if this situation isn’t taken care… Read more
Jul 02, 2014 | By Edvard Csanyi
Safety
How dangerous are induced currents in transmission towers and poles?
Landowners and developers should be aware of the potential for nuisance and startle shocks (caused by induced voltage) that can occur when someone comes in contact with a large conductive object (eg. a vehicle, building or even fencing) located on or off… Read more
Jun 27, 2014 | By Edvard Csanyi
Electrical Lectures
2 Most Common Contributing Factors In Motor Insulation Failure
The most frequent failure in electrical equipment is the degradation and breakdown (flashover) of the insulation. Electrical insulation can be liquid or solid, organic or inorganic. Organic insulation material consists of: enamels, varnishes, resins, or polymers that are applied to the steel surface to provide… Read more
Jun 25, 2014 | By Edvard Csanyi
Power Substation
Arriving at the scene of a substation fire. What should you do first?
Power substations contain transformers, large quantities of oil, energized electrical equipment and, in some cases, cylinders of compressed gas. Some of the oil may contain polychlorinated biphenyls (PCBs). On arriving at a substation fire, normally you should first call for firefighters… Read more
Jun 23, 2014 | By Edvard Csanyi
