All consumers receiving energy from the electricity distribution system create distorting effects in relation to the short circuit power ratio of the point where the devices they use are connected. The causes of the most disturbing effects in the electricity networks and their negative effects can be explained as follows:

·         Sudden changes and fluctuations in the amplitude and frequency of voltage

·         Load imbalances

·         Harmonics or intermediate harmonics

Among these effects, a negative situation experienced by consumers is the Fliker effect, which is perceived as fluctuation of light glare, which occurs in lighting means due to voltage fluctuation. Acceptable flicker levels according to international standards are as follows:

·         380 kVolt and over at very high stress 0,85

·         36 at high voltage from 380 kVolt to 0,97 kVolt

·         Medium and low voltage 1,15

Due to the nature of the semiconductor elements and the effect of some nonlinear loads such as transformers or arc furnaces used in industry, current and voltage waveforms are periodic, but are composed of the sum of sinusoidal waves and other sinusoidal waves of different frequency and amplitude. These sinusoidal waves other than the basic wave are called harmonics. This is caused by saturation in magnetic circuits, power control elements, nonlinear loads, transformer magnetizing currents operating in the saturation zone, continuous power supplies, computers, fluorescent lamps, electronic ballasts, battery charging systems, semiconductor controlled devices and discharge lamps.

The presence of harmonic current and voltage in power systems means that the sinusoidal wave is disturbed. Harmonics cause some technical and economic problems in power systems such as additional losses, resonance events, voltage drops, and change of power factor.

Distortion of voltage and current waveforms with harmonics creates many problems in energy systems. For example, the generator and mains voltage deteriorates, the voltage drops, there are losses in the elements and loads in the energy system, inaccurate measurements are made in induction type meters, resonances occur in the network and therefore excessive voltages and currents occur, and signal errors occur in the protection and control systems. iInsulation materials are damaged and the life of electric vehicles is shortened.

Our company within the framework of electrical safety examinationsconducts harmonic energy analyzes in accordance with the relevant legal regulations, standards and test methods published by domestic and foreign institutions.