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Author Archive for: Edvard Csanyi

Edvard Csanyi

1662 awesome technical articles

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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.

Website: https://electrical-engineering-portal.com

Energy Efficiency

How to achieve energy-efficient lighting?

Technological development has focused primarily on such things as the fluorescent lamp and the ballast and has chiefly been geared to boosting their luminous efficacy. The chart “Milestones to energy… Read more

Jun 13, 2011 | By Edvard Csanyi

How to achieve energy efficent lighting?
Low Voltage

How residual current device (RCD) works?

The residual current device (rcd) is used to detect earth fault currents and to interrupt supply if an earth current flows. The main application is to prevent electrocution but RCDs… Read more

Jun 11, 2011 | By Edvard Csanyi

Figure 1 - Residual current device components
HVAC

How heat pump works?

The heat pump transfers the heat between the heating/cooling distribution system and the earth connection. It is the basic building block of the GSHP system. The most common type of… Read more

Jun 10, 2011 | By Edvard Csanyi

The Refrigeration Cycle (Heating Mode) of a Typical Packaged Heat Pump Unit.
Renewable Energy

Stand-Alone PV Systems

Stand-alone PV (photovoltaic) systems are used when it is impractical to connect to the utility grid. Common standalone systems include PV-powered fans, water pumping systems, portable highway signs, and power… Read more

Jun 08, 2011 | By Edvard Csanyi

3000W Off-grid polar power system
Medium Voltage

ABB – AIS UniGear ZS1 design features

UniGear ZS1 is medium voltage switchgear with a metal enclosure, suitable for indoor installations. Metal partitions segregate the compartments from each other and the live parts are air-insulated. Since the… Read more

Jun 06, 2011 | By Edvard Csanyi

ABB - AIS (air insulated switchgear) UNIGEAR ZS1
High Voltage

Construction and service life of GIS

GIS is assembled of standard equipment modules (circuit breaker, current transformers, voltage transformers, disconnect and ground switches, interconnecting bus, surge arresters, and connections to the rest of the electric power… Read more

Jun 04, 2011 | By Edvard Csanyi

Figure 2.1 Single-phase enclosure GIS
Energy and Power

How contactor controls an electric motor?

When a relay is used to switch a large amount of electrical power through its contacts, it is designated by a special name: contactor. Contactors typically have multiple contacts, and… Read more

Jun 01, 2011 | By Edvard Csanyi

Control of electric motor with contactor
High Voltage

GIS control system

For ease of operation and convenience in wiring the GIS back to the substation control room, a local control cabinet (LCC) is provided for each circuit breaker position (Figure 1)…. Read more

May 29, 2011 | By Edvard Csanyi

GIS control system
Transformers

GEAFOL – cast-resin transformer

The Siemens’s transformer GEAFOL principle has succeeded in producing transformers with excellent electrical, mechanical and thermal characteristics, which have also proved to be particularly compatible with the environment. GEAFOL transformers… Read more

May 27, 2011 | By Edvard Csanyi

Siemens's cast-resin transformer 'GEAFOL'
Energy and Power

Technology future – The cost of inaction

Without new thinking on technology intervention, the future looks bleak. Unless the role of technology in the global economy is reconsidered, we risk becoming powerless to feed a growing population,… Read more

May 25, 2011 | By Edvard Csanyi

Technology future - The cost of inaction
Electronics

ESD – Electro Static Discharge

An increasing problem today with the use of more and more electronic equipment in our systems is the Electro Static Discharge (ESD). The main source of the problem is the… Read more

May 23, 2011 | By Edvard Csanyi

Printed Circuit Board (PCB)
Transformers

TRIHAL – Dry type cast resin HV/LV transformer

Trihal is a three-phase dry type transformer cast under vacuum in epoxy resin with an active filler. It is this active filler, essentially composed of trihydrated alumina, which is the… Read more

May 22, 2011 | By Edvard Csanyi

TRIHAL dry type cast resin HV/LV transformer - Schneider Electric


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