Edvard Csanyi
1754 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
Testing and Commissioning
5 components of current drawn by the DC voltage testing of insulation
When DC voltage is applied to an insulation, the electric field stress gives rise to current conduction and electrical polarization. Consider an elementary circuit as shown in Figure 1 below, which shows a DC voltage source, a switch, and an… Read more
Jun 19, 2015 | By Edvard Csanyi
Energy and Power
5 copper busbar jointing methods you should know
Efficient joints in copper busbar conductors can be made very simply by: Bolting Clamping Riveting Soldering Welding Bolting and clamping are used extensively on-site. Shaped busbars may be prefabricated by using friction stir welding. Bolted joints are formed by overlapping… Read more
Jun 17, 2015 | By Edvard Csanyi
Electric Motor
Basics of DC Motors For Electrical Engineers – Beginners
Separate field excitation DC motors are still sometimes used for driving machines at variable speed. These motors are very easy to miniaturize, and essential for very low powers and low voltages. They are also particularly suitable, up to high power… Read more
Jun 15, 2015 | By Edvard Csanyi
Testing and Commissioning
Procedure for transformer lightning impulse test
The purpose of the impulse voltage test is to secure that the transformer insultations withstand the lightning overvoltages which may occur in service. Where: C1 – Impulse capacitor Rc – Charging resistor Rs – Series resistor Ra – Low-ohmic discharging resistor for… Read more
Jun 12, 2015 | By Edvard Csanyi
Energy and Power
When To Use a Solidly Grounded System?
As is evident from the name, a solidly grounded system is one where the neutral of the system is directly connected to ground without introducing any intentional resistance in the ground circuit. With appropriate choice of the type and number… Read more
Jun 10, 2015 | By Edvard Csanyi
Energy and Power
How to achieve selective coordination of circuit breakers
Selective coordination is often referred to simply as coordination. Coordination is defined in NEC® 240.2 as: “The proper localization of a fault condition to restrict outages to the equipment affected, accomplished by the choice of selective fault-protective devices.” It is… Read more
Jun 08, 2015 | By Edvard Csanyi
Energy and Power
What Is The Poor Power Quality?
Most electrical and electronic equipment is designed to operate from a power supply with a particular specification that usually defines the minimum and maximum limits for RMS (root mean-square) voltage and frequency. There is an expectation on the part of… Read more
Jun 05, 2015 | By Edvard Csanyi
Energy and Power
Understanding Transfer Switch Transition Types
Transfer switches are used for quickly and safely transitioning all electrical power consumed by the circuit, equipment, or systems connected to the transfer switch output between those normal and emergency power sources. All electrical power consumed by the circuit, equipment, or… Read more
Jun 03, 2015 | By Edvard Csanyi
Energy and Power
The Philosophy Of Breaker Failure Protection
The separation of equipment into zones will only work successfully if the outputs of the protections can be guaranteed to do their job. This makes logical sense. For the bus protection in Figure 1 for example, the breakers X and… Read more
May 29, 2015 | By Edvard Csanyi
Cables
Few Aspects of Copper versus Aluminium
The constructions of aluminum wire and terminals have both been revised from past years. At one time the conductor was nearly pure aluminum, now they are all much stronger 8000 series alloys, with physical characteristics similar to copper. The wire… Read more
May 27, 2015 | By Edvard Csanyi
Medium Voltage
Current and voltage sensors as an alternative to traditional CTs and VTs
As an alternative for traditional primary current and voltage measurement techniques, the use of sensor technique is gaining field. This technique is typically applied to current and voltage measurement in medium-voltage metal-enclosed indoor switchgear. There are many undeniable advantages with… Read more
May 25, 2015 | By Edvard Csanyi
Metering
Understanding the ratios of magnetic HV instrument current transformers
The primary winding is a part of the network, carrying the actual load current. The transformer’s secondary circuits usually consist of several units, each of them having its own magnetic core and winding. The transformer has a rated current transforming… Read more
May 22, 2015 | By Edvard Csanyi
Electric Motor
5 most common motor load types
Certain load types are characteristic in the industrial world. Knowing the load profile (speed range, torque and power) is essential when selecting a suitable motor and frequency converter for the application. Some common load types are shown. There may also… Read more
May 20, 2015 | By Edvard Csanyi
Energy and Power
Important Guidelines To Startup and Shutdown a Large Generator
The purpose of this guidelines is to ensure the continuing operational integrity of generators. Operating conditions (startup and shutdown) that have forced units off-line or have damaged or shortened the life of turbine (or generator) components in the past are… Read more
May 18, 2015 | By Edvard Csanyi
Electric Motor
The basics of built-in motor protection for engineers beginners
In order to avoid unexpected breakdowns, costly repairs and subsequent losses due to motor downtime, it is important that the motor is fitted with some sort of protective device. This article will deal with built-in motor protection with thermal overload… Read more
May 15, 2015 | By Edvard Csanyi
