Energy and Power
14 disturbance types that mess up power quality and 50/60 Hz sinusoidal signal
The quality of electrical energy seems to be very popular nowadays. It may be affected either by events that occur on the distribution systems (switching, lightning, etc.) or by the use made of the electricity when for example certain loads… Read more
Jan 06, 2020 | By Edvard Csanyi
Energy and Power
Essential fundamentals of harmonics distortion for future power quality experts
It’s quite easy to understand what is the harmonics distortion. If you take a look at the past, you must notice that power system was much cleaner and straightforward. Most loads were primarily linear in nature. Linear loads draw the… Read more
Dec 30, 2019 | By Edvard Csanyi
Low Voltage
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Where and why you should use thyristor switched reactive power compensation
Various aspects of reactive power compensation problems have already been mentioned in previous articles. However, because of consistency of this article, we will remind ourselves briefly on basic terms and principles related to this field. Reactive power is a sort…...
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Dec 12, 2019 | By Miodrag Kokotovic
Energy and Power
Reactive power compensation in electrical plants with generators
Compensation of reactive power applied in buildings or small facilities operates in the first and second quadrants of the coordinate system. Increasingly, complex industrial plants, for example plants burning wood dust, are using generators driven by steam engines running parallel… Read more
Oct 30, 2019 | By Edvard Csanyi
Energy and Power
Operating centralized automatic compensation systems when supplying linear loads
For energy-efficient operation of decentralized multiply-fed industrial networks, each load-centre substation must have its own centralized reactive-power compensation system for automatic PF correction. The automatic reactive-power compensation systems used for load-related control of the reactive power comprise a PF controller… Read more
Sep 16, 2019 | By Edvard Csanyi
Energy and Power
The facts about modern rotary and static uninterruptible power systems (UPS)
This technical article covers the brief explanation of the power quality issues with the reference to the past as well as two main types of modern UPS systems – rotary and static uninterruptible power systems, their characteristics, advantages and disadvantages…. Read more
Sep 04, 2019 | By Edvard Csanyi
Electrical Lectures
Reactive power and power factor correction essentials to ALWAYS keep on mind
Why reactive power and power factor correction are so important? Well, for experienced engineers, this is not the question but the fact. For young students who meet this matter and terms for the first time, it’s important to explain the… Read more
Sep 02, 2019 | By Edvard Csanyi
Energy and Power
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The magic I used to reduce harmonics in a plant (a real case study)
During the last several decades, the number and severity of electrical engineering problems caused by harmonic distortion have been significantly increased in both, domestic and industrial environments. This is mainly due to the increased number and larger ratings of nonlinear…...
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Jul 11, 2019 | By Miodrag Kokotovic
Energy and Power
How harmonic filters prevent distortions in networks with high harmonic levels
The subject of this technical article are harmonic filters and their design. Filtering measures are recommended and may be required for electrical systems with too high harmonic levels. Filter circuits can absorb more harmonic currents. This means that, like reactor-protected… Read more
Jul 03, 2019 | By Edvard Csanyi
Electrical Lectures
The theory behind reactive energy compensation that every engineer should know
Reactive energy compensation is an essential process in improving energy efficiency. It reduces the power consumption and thus its cost, enables optimum use of installations by preventing them being oversized, and more generally it improves the quality of energy systems…. Read more
May 22, 2019 | By Edvard Csanyi
Power Quality
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Practical approach in design and installation of detuned capacitor banks
During last two or three decades, the number of nonlinear electrical loads inside all types of buildings and facilities (residential, business, commercial and industrial) has been significantly increased. All that caused the need for new approaches for electrical installation and…...
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Mar 15, 2019 | By Miodrag Kokotovic
Energy and Power
Earthing facts and terms you should always remember
While working as an electrical engineer, I learned that there are a dozen things you must remember, especially the ones that concern the safety. Whether you are in the electrical design field or in execution, you must admit that earthing… Read more
Mar 04, 2019 | By Edvard Csanyi
Power Quality
Six MV/HV applications of series capacitors for improving the power quality
Series capacitors are connected in series in the circuit and therefore carry the full transmission line current. The series capacitor is actually a negative reactance in series with a transmission line. The voltage rise across the capacitor is a function… Read more
Jan 23, 2019 | By Edvard Csanyi
Energy and Power
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How to determine compensation of reactive power of an electrical installation
Improving the power factor of an electrical installation (compensation of reactive power) has many economic and technical advantages, but it’s not always easy to do so. There are numerous approaches to do such job, so let’s try to with this…...
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Jan 11, 2019 | By Edvard Csanyi
Energy and Power
Installing and setting into operation of automatically controlled compensation banks
During previous decades manufacturers of automatic compensation banks faced increasing competition worldwide. They were forced to produce as economically as possible. Now, new technologies have been developed compared with the past when capacitors were bigger and heavier. Minimizing capacitors enabled… Read more
Jul 23, 2018 | By Edvard Csanyi
