Low Voltage
Design of primary and secondary power distribution in car manufacturing plants (BMW, VW…)
When power supply systems for car manufacturing plant are planned, each individual problem can be faced in various ways: by means of technical solutions that feature specific technical advantages. This means that both a thorough knowledge of the relevant industrial… Read more
May 30, 2018 | By Edvard Csanyi
Energy and Power
Step-by-step tutorial for building capacitor bank and reactive power compensation panel
Design of reactive power compensation panel is much different and not that simple like standard distribution panel. When dealing with such panels, there are dozen of parameters to specify and other things to take care of. This article is the… Read more
Feb 28, 2018 | By Edvard Csanyi
Energy and Power
How To Control Reactive Power In Larger Electrical Plants With Multiple Incomers
Most compensation banks are controlled stepwise. For this purpose it is essential to ‘know’ when it is allowed to (de)activate a capacitor step by the power factor relay (controller). The so-called C/k value is calculated by the step size C… Read more
Nov 15, 2017 | By Edvard Csanyi
Electric Motor
How bad harmonics influence the work of motors and generators, transformers, capacitors etc.
The distortion in the waveform in the load current of any nonlinear device causes similar changes in the voltage waveform relative to the harmonic impedance of the source network. This voltage distortion affects both the current and voltage for all… Read more
Oct 25, 2017 | By Edvard Csanyi
Energy and Power
Improvement of Power Quality via Dynamic Reactive Power Compensation Systems
In many cases, industrial plants are characterized in particular by the use of highly dynamic drive technology. In addition to the undeniable advantages of these modern technologies, there is the disadvantage that the electrical networks are strained because of frequent… Read more
Oct 11, 2017 | By Edvard Csanyi
Energy and Power
Unbalance protection of grounded & ungrounded wye shunt capacitor banks
The protection of shunt capacitor banks against internal faults involves several protective devices in a coordinated scheme. Typically, the protective elements found in a shunt capacitor banks (SCB) for internal faults are: individual fuses (not discussed here), unbalance protection to… Read more
Jul 26, 2017 | By Edvard Csanyi
Energy and Power
Three proven ways to reduce electrical energy losses in buildings
As savings in terms of costs are the main concern for the operators, the first approach is to try to reduce electrical energy losses in buildings. Also, the electricity supply network itself consumes energy. Moreover, if it is not suitably… Read more
Jul 24, 2017 | By Edvard Csanyi
Energy and Power
Practical solutions for preventing ferroresonance in electrical installations
Ferroresonance is a non-linear resonance phenomenon that can affect power networks. The abnormal rates of harmonics and transient or steady state overvoltages and overcurrents that it causes are often dangerous for electrical equipment. Some unexplained breakdowns can be ascribed to… Read more
Jul 17, 2017 | By Edvard Csanyi
Energy and Power
Power quality monitoring with line disturbance analyzers and voltage recorders
Many power quality problems are caused by inadequate wiring or improper grounding. These problems can be detected by simple examination of the wiring and grounding systems. Another large population of power quality problems can be solved by spot-checks of voltage,… Read more
Jul 03, 2017 | By Edvard Csanyi
Energy and Power
How to recognize harmonics symptoms – What to look for and where to look?
Finding harmonics problem is relatively easy once you know what to look for and where to look. Harmonics symptoms are usually anything but subtle. This technical article provides some basic pointers on how to recognize problems with harmonics in power… Read more
May 10, 2017 | By Edvard Csanyi
Energy and Power
Network harmonics analysis – Installation with 6-pulse rectifier, capacitors & filters
The diagram in figure 1 represents a simplified network comprising a 2,000 kVA six-pulse rectifier, injecting a harmonic current spectrum, and the following equipment which will be considered consecutively in three different calculations. So, let’s list these calculations and start with… Read more
Apr 21, 2017 | By Edvard Csanyi
Energy and Power
Installation, protection and connection of capacitor banks
In an low voltage electrical installation, capacitor banks can be installed at three different levels: Global installation Segment (or group) installation Individual (or single) installation After installation ways, we’ll discuss about protection and connection of capacitors banks. This installation type assumes… Read more
Mar 20, 2017 | By Edvard Csanyi
Energy and Power
Three performance factors you must consider when sizing batteries
Batteries need to be sized correctly to be able to feed the required load for the required time, and a number of factors need to be decided to be able to optimize the battery for the duty expected. Some of… Read more
Mar 10, 2017 | By Edvard Csanyi
Energy and Power
How a three-phase power transformer responds to harmonics
The way in which a three-phase transformer responds to harmonics depends on the connection configuration used. For a star-star configuration, any imbalance in the phase currents results in the star point being electrically displaced and the phase to neutral voltages… Read more
Feb 15, 2017 | By Edvard Csanyi
Energy and Power
Six wiring and grounding problems that lead to low power quality
In this technical article, typical wiring and grounding problems, as related to power quality, are presented. Possible solutions are given for these problems as well as the possible causes for the problems being observed on the grounding system. (See Table 2 at… Read more
Dec 14, 2016 | By Edvard Csanyi
