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
High Voltage
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Substation and switchyard support structures for electrical equipment (you SHOULD know)
Substation and switchyard structures are used to support the above-grade components and electrical equipment such as cable bus, rigid bus, and strain bus conductors, switches, surge arresters, insulators, and other equipment. Substation and switchyard structures can be fabricated from latticed…...
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Aug 26, 2020 | By Edvard Csanyi
Energy and Power
Earth fault protection in a solidly (effectively) earthed high voltage power systems
The fault statistic shows that earth faults are the dominating fault type and therefore the earth fault protection is of main importance in a network. The type of earth fault protection used is dependent of the system earthing principle used…. Read more
Aug 24, 2020 | By Edvard Csanyi
Metering
How to make the right selection of a digital transducer for power system measurements
The accurate measurement of the voltage, current or other parameter of a power system is a prerequisite to any form of control, ranging from automatic closed-loop control to the recording of data for statistical purposes. Measurement of these parameters can… Read more
Aug 19, 2020 | By Edvard Csanyi
Energy and Power
Six differential stator-phase-fault protection (87) for all size generators (you MUST know)
Generally, phase faults at generators rarely occur, but when they do, large fault currents can flow and make a mess. The best protection is differential (ANSI 87), and this type is recommended for all generators, except maybe for small units… Read more
Aug 12, 2020 | By Edvard Csanyi
Electric Motor
Protection of three-phase motors from unbalance (loss of phase and phase rotation)
The most common cause of unbalance for three-phase motors is the loss of phase resulting from an open fuse, circuit breaker, connector, or damaged conductor. Unbalances in other connected loads can also affect the motor. A voltage unbalance of 3.5%… Read more
Aug 10, 2020 | By Edvard Csanyi
Low Voltage
Secondary LV/MV distribution substations in a nutshell (connections and types)
The general method of supplying bulk power to buildings, factories or other complexes is by means of an MV supply, usually at 10 kV, occasionally at 6.6 kV. The installation comprises secondary distribution substation at the point of entry, with… Read more
Aug 05, 2020 | By Edvard Csanyi
Medium Voltage
Installation guidelines for MV metal-enclosed switchgear and controlgear (IEC 62271-200)
What does it mean ‘metal-enclosed switchgear’? Metal-enclosed switchgear and controlgear are generally assembled from type-tested panels. As per IEC 62271-200 metal-enclosed switchgear installations must be designed so that their insulation capacity, degree of protection, current carrying capacity, switching capacity and… Read more
Jul 27, 2020 | By Edvard Csanyi
Energy and Power
How system earthing keeps you and the network safe
The term “earthing” consists of several functions which only have “utilizing the earth” in common. Before describing the system earthing, it can be of interest to know a bit about the different types of earthing. Protective earthing is applicable mainly… Read more
Jul 22, 2020 | By Edvard Csanyi
Power Substation
Control system equipment that supervises, protects and controls the substation operation
The control system equipment in a substation is a vital part that supervises, protects and controls the transmission of electrical power. The increasing complexity in the substations of today, together with the increasing transmitted power and the increasing fault current… Read more
Jul 13, 2020 | By Edvard Csanyi
Protection
Protection coordination practices in distribution systems with distributed generation
Generally, in most of the countries that cover large area, there are three types of distribution systems: urban, suburban, and rural. Each type of them has its own features regarding the length of the backbone, types of protection devices used,… Read more
Jul 08, 2020 | By Edvard Csanyi
High Voltage
How to shrink three-phase AC high voltage substation and optimize cost and space
Nowadays, when every cent is essential when building a substation, it is imperative to optimize each HV equipment without compromising functionality. This technical article deals with a few solutions to optimize high voltage switchgear in terms of space and cost…. Read more
Jul 06, 2020 | By Edvard Csanyi
Power Substation
Principles and schemes of busbar and breaker protection in MV/HV/EHV networks
A busbar protection is a protection to protect busbars at short-circuits and earth-faults. In the “childhood” of electricity no separate protection was used for the busbars. Nearby line protection were used as back-up for busbar protection. With increasing short-circuit power… Read more
Jun 24, 2020 | By Edvard Csanyi
Medium Voltage
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Primary rated values for medium voltage switchgear often mixed by engineers
It’s not unusual to see that engineers mix terms of primary ratings. If they are not understood well, yes, it’s possible to mix some of them. But it’s essential to differentiate them. This technical article will try to shed some…...
Membership Upgrade Required
This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Good to know! - Save 50% on all video courses with Enterprise plan.
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Jun 22, 2020 | By Edvard Csanyi
Energy and Power
Electrical insulation testing – Often underestimated until things go really bad
Due to mechanical damage, vibrations, (excessive) heat/cold, moisture/humidity, chemical influences and interactions and aging pinholes, cracks causes moisture and foreign matter to penetrate the surface of the insulation. They create a low resistance path which allows leakage current to flow… Read more
Jun 17, 2020 | By Edvard Csanyi
Power Substation
Protection practice recommendations and relay schemes for transformer, bus and breaker failure
Protective relays are most often applied with other protective and auxiliary relays as a system rather than individually. The following basic scheme descriptions apply to electromechanical, static, and microprocessor relay systems. The static and microprocessor relay systems generally have more… Read more
Jun 06, 2020 | By Edvard Csanyi
