Edvard Csanyi
1645 awesome technical articles
Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV/MV switchgears and LV high power busbar trunking (<6300A) in power substations, commercial buildings and industry facilities. Professional in AutoCAD programming.
Energy and Power
8 steps to follow in power substation design and engineering
Building a new substation or retrofitting the old one is a complex process full of design and engineering tasks to be worked on. The main steps in substation design and… Read more
Sep 21, 2016 | By Edvard
Electrical Lectures
Three-phase transformer connections and vector groups for beginners
In theory a three-phase transformer works like three separate single-phase transformers with shared limbs in which the magnetic circuit for the outer limbs is longer than for the centre limb…. Read more
Sep 19, 2016 | By Edvard
Power Quality
How to locate harmonic currents and where to control them?
On radial utility distribution feeders and industrial plant power systems, the main tendency is for the harmonic currents to flow from the harmonic-producing load to the power system source. This… Read more
Sep 16, 2016 | By Edvard
Electrical Lectures
What is grounding and why do we ground the system and equipment?
The term grounding is commonly used in the electrical industry to mean both “equipment grounding” and “system grounding”. Equipment grounding means the connection of earth ground to non-current carrying conductive materials… Read more
Sep 14, 2016 | By Edvard
Medium Voltage
Power flow in MV radial network and calculation of voltage drop and loss
In three phase system the load for each phase should be the same. We call symmetrical load when the load of each phase is equal. In symmetrical circuit each phase… Read more
Sep 12, 2016 | By Edvard
Low Voltage
What a ground fault circuit interrupter does and what it does not do
A ground fault circuit interrupter (GFCI) monitors the current balance between the ungrounded “hot” conductor and the grounded conductor. As soon as the current flowing through the “hot” conductor is in… Read more
Sep 09, 2016 | By Edvard
Energy and Power
When does exciting current inrush occur in power transformer?
When a transformer is initially energized, there is a phenomenon known as exciting current inrush. Although inrush currents are not generally as damaging as fault currents, the duration of exciting… Read more
Sep 07, 2016 | By Edvard
Protection
4 essential implementations of protective relays in power systems
In this technical article, protective relays are categorized depending on the component which are protect: Generators Transmission lines Transformers, and Loads There are different protection schemes used for protecting generators… Read more
Sep 05, 2016 | By Edvard
Electrical Lectures
Answer 20 questions correctly and prove you are good electrician
It’s not easy to be a good electrician, that’s for sure. Things you studied hard (or still studying) are gradually being forgotten, especially electrical formulas. Well, these 20 questions tend… Read more
Sep 02, 2016 | By Edvard
Energy and Power
Direct and indirect measurements using CTs and VTs
In order to measure electrical quantities, the measuring instruments must be connected to the lines safely, with maximum simplicity and convenience. Generally, the fundamental parameters to be detected are voltage… Read more
Aug 31, 2016 | By Edvard
Energy and Power
Breaking of a short circuit current in a direct current system
Direct current presents different problems than alternating current with aregard to the phenomena associated to the breaking of a short circuit current and interruption of other types of high value… Read more
Aug 29, 2016 | By Edvard
Electric Motor
What details a motor nameplate shows and how to use them
We have all seen the motor nameplate attached on the motor side (or on top). All motors have a permanent nameplate which lists all important data, further data is usually available… Read more
Aug 26, 2016 | By Edvard
Energy and Power
Calculate reactive power of the capacitor bank and improve power factor
For the dimensioning of the capacitor bank to be installed in order to improve the power factor of a plant, it is necessary to calculate correctly the power factor according… Read more
Aug 24, 2016 | By Edvard
Maintenance
Should you choose fixed or withdrawable medium voltage switchgear?
How to make the right choice between fixed or withdrawable medium voltage switchgear when selecting a new equipment for power substation? The following evaluation procedure should be conducted: Find out… Read more
Aug 22, 2016 | By Edvard
Electric Motor
Motor wiring guidelines (Cable shielding, grounding and splicing techniques)
This technical article describes shielding, grounding, and splicing techniques for use with motor wiring. This article covers the following topics: Understanding noise in motor power wiring Shielding motor power cables… Read more
Aug 19, 2016 | By Edvard
