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Author Archive for: Edvard Csanyi

Edvard Csanyi

1625 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 and Power

Simplify Downstream Installation with Cascading

Cascading provides circuit breakers placed downstream of a limiting circuit breaker with an enhanced breaking capacity. The limiting circuit breaker helps the circuit breaker placed downstream by limiting high short-circuit… Read more

Oct 16, 2012 | By Edvard

Simplify Downstream Installation with Cascading
Transformers

Heating of the Dry-type Transformer

Although transformers can be classified by core construction (shell or core type), the more functional types of standardized classifications are based on how the transformer is designed for its specific… Read more

Oct 15, 2012 | By Edvard

Heating of the Dry-type Transformer
Lighting

Difference Between Diffuse and Directed Light

Having dealt with light quantity, conside-ration must be given to the quality of light, the difference between diffuse light and directed light being one of the most important aspects. We… Read more

Oct 13, 2012 | By Edvard

Difference Between Diffuse and Directed Light
Energy and Power

NEC Requirements for Emergency Systems

Emergency systems are generally installed in buildings that are or can be occupied by 1000 or more persons or are more than 75 ft high. These are buildings where artificial… Read more

Oct 12, 2012 | By Edvard

NEC Requirements for Emergency Systems
Power Substation

Switching Impulse Test of the Transformer

The switching impulse test is applied to confirm the withstand of the transformer’s insulation against excessive voltages occurring during switching. During the switching impulse voltage test, the insulation between windings… Read more

Oct 11, 2012 | By Edvard

Switching Impulse Test of the Transformer
Energy and Power

Disturbances In LV Networks Due To Surges

There are two types of surge: those generated by a lightning impact and those resulting from electrical switchgear switching operations. Surges resulting from lightning strokes (see figure below) can affect… Read more

Oct 06, 2012 | By Edvard

Disturbances Due To Surges
Energy and Power

How to Protect Capacitor Banks?

Capacitor banks are used to compensate for reactive energy absorbed by electrical system loads, and sometimes to make up filters to reduce harmonic voltage. Their role is to improve the… Read more

Oct 05, 2012 | By Edvard

How to Protect Capacitor Banks?
Transformers

Dry Transformer Percent Impedance Definition

The percent impedance is the percent voltage required to circulate rated current flow through one transformer winding when another winding is short-circuited at the rated voltage tap at rated frequency. %Z is related… Read more

Oct 03, 2012 | By Edvard

Dry Transformer Percent Impedance Definition
Energy and Power

Inspection of Ground-Fault Protection Systems

This type of protection is defined by the NEC (National Electrical Code) to ensure protection against fire on electrical power installations. To ensure protection against fire: The NEC defines the… Read more

Sep 25, 2012 | By Edvard

Inspection of Ground-Fault Protection Systems
Energy and Power

Testing and Commissioning of Metal-Clad Switchgear

Electrical testing and commissioning of Metal-Clad switchgear is essential to the safe start for the first time, regardless of its size, type or industry. This article covers testing and start-up… Read more

Sep 24, 2012 | By Edvard

Distribution substation - 20/04kV MCset metal-clad switchgear (Schneider Electric)


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