Economic advantages of power factor correction
Power supply authorities apply a tariff system which imposes penalties on the drawing of energy with a monthly average power factor lower than 0.9. The contracts applied are different from… Read more
Dec 04, 2010 | By Edvard Csanyi
Power Factor Correction
If an inductive load with an active power demand P has an uncorrected power factor of cosf1 lagging, and is required to have a corrected power factor of cosf2 lagging,… Read more
Nov 23, 2010 | By Edvard Csanyi
Reactive Loads and Power Factor
The impedance Z of a reactive load comprising resistance R and series reactance X is: Z = R + jX = |Z|Ðf Converting to the equivalent admittance Y: Y =… Read more
Nov 23, 2010 | By Edvard Csanyi
Active Harmonic Conditioners And Unity Power Factor Rectifiers
Electric loads are becoming increasingly non-linear in the industrial, tertiary and even household sectors. These loads absorb non-sinusoidal currents which, under the effect of circuit impedance, distort the purely sinusoidal… Read more
Sep 23, 2010 | By electrowsky
Factory and Site Acceptance Tests (FAT, SAT) For Electrical and Automation Systems In a Power Plant
The thesis consists of an investigation of what is to be tested with FAT (Factory Acceptance Test) and SAT (Site Acceptance Test), and also how to do the testing. The… Read more
Nov 19, 2017 | By Edvard Csanyi
Power Transformer Capacitance and Dissipation Factor Test
The capacitance and dissipation factor test is an AC low voltage maintenance test and is very similar to the power factor test. While the transformer preparation is identical to the… Read more
Jan 22, 2014 | By Edvard Csanyi
Determining Correction Factor of Power Cable Sizing
The initial aim of the thesis is to provide new findings in term of power cable sizing adjustment which later is deemed right for normal operating purposes. There are a… Read more
Aug 25, 2012 | By Edvard Csanyi
Transformers in plant power distribution: The bigger picture
This technical article provides an overview of the various choices and assists electrical engineers in determining the criteria that should be included in the transformer specifications in order to meet… Read more
Mar 04, 2024 | By Edvard Csanyi
Which types of power generating plants are worth planning and constructing nowadays?
Power generating plants are always a capital investment in all countries across the world. Not many countries are building new generating plants nowadays. As we all feel, a worldwide energy… Read more
Feb 19, 2024 | By Edvard Csanyi
Substation control and monitoring systems: The eyes and ears of every power system
To ensure the substation is run efficiently, a control and monitoring systems are needed. These systems should display the current status of all plant equipment, including alarms and secondary system… Read more
Feb 05, 2024 | By Edvard Csanyi
What can go wrong with the nuclear power plant in the case of a grid loss: What to do?
Acquiring the skill to operate a nuclear reactor bears resemblance to acquiring the skill to pilot an aircraft. The majority of airplane pilots rapidly acquire proficiency in performing take-offs and… Read more
Jan 22, 2024 | By Edvard Csanyi
Power transformer energization problems and modeling for calculation of inrush currents
This study presents the development and validation of a versatile transformer model specifically designed for analyzing low and medium frequency transient phenomena. An analysis is conducted on the inrush current… Read more
Jan 18, 2024 | By Edvard Csanyi
Modern practice for LV/MV substation and power distribution systems within buildings
In the present era, the presence of reliable and uninterrupted electricity is commonly assumed in the majority of nations. Nevertheless, in many nations, this is susceptible to frequent disruptions caused… Read more
Dec 18, 2023 | By Edvard Csanyi
Contract drawings for a power transformer – The checklist you should always follow
This technical article provides a collection of the common drawings that are sent by the manufacturer to the client for approval and reference. The goal of these drawings is to… Read more
Dec 04, 2023 | By Edvard Csanyi
Auxiliary DC power system used for fault detection, trip coils and remote operation
The auxiliary DC control power system is considered the most crucial element of a protection, control, and monitoring system. The failure of the direct current (DC) control power can result… Read more
Nov 20, 2023 | By Edvard Csanyi