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HARMONICS FILTERS

For installations with a high level of harmonic pollution, the user may be confronted with two requirements:

• compensating for reactive energy and protecting the capacitors

• reducing the voltage distortion rate to acceptable values compatible with the correct operation of most sensitive receivers (automatic control systems, industrial computer hardware, capacitors, etc.).

For this application, ALPES TECHNOLOGIES is able to offer "passive type" harmonic filters. A "passive type" harmonic filter is a serial combination of a capacitor and an inductive coil for which each combined frequency corresponds to the frequency of an interfering harmonic voltage to be eliminated.

For this type of installation, ALPES TECHNOLOGIES offers services including:

• analysis of the supply on which the equipment is to be installed with measurements of harmonic currents and voltages

• computer simulation of the compatibility of the harmonic impedances of the supply and the different filters

• calculation and definition of the different components of the filter

• supply of capacitors, inductive coils, etc.

• measurement of system efficiency after installation on site

Harmonics summary