Harmonic and Flickers Analysis Systems

Harmonic and Flickers Analysis Systems

Electric power makes it possible for different equipment to operate through power lines. However, these lines, whether they are electric or data lines, can generate radiated or conducted electromagnetic emissions.

It must, therefore, be kept in mind that any non-sinusoidal periodic waveform can be represented as the sum of sine waves whose frequencies are multiple integers of the fundamental frequency, known as harmonics. These generate emissions that must be studied in order to achieve the proper operation of electrical equipment.

Harmonic emissions

• Measurement of the harmonic levels generated by the equipment and emitted towards the power supply network.
• Frequency range: 0 to 2 kHz (harmonic 40)
• Limits: Depends on the type of equipment.
• These are distortions in the waveform of the network signal produced by any type of active or electronic (non-resistive) load connected to that power supply network.

• The result is presented in graphs and tables with a measurement of the different harmonics.

Continuing with the theme of radiated or conducted electromagnetic emissions, other emissions that have to be taken into account are “flicker” emissions. These are produced in electrical networks by the action of disturbing charges, characterized by rapidly fluctuating currents.