Harmonics in power system.

In an electric power system, a harmonic is a voltage or current at a multiple of the fundamental frequency of the system, produced by the action of non-linear loads such as rectifiers, discharge lighting, or saturated magnetic devices. Harmonic frequencies in the power grid are a frequent cause of power quality problems. Harmonics in power systems result in increased heating in the equipment and conductors, misfiring in variable speed drives, and torque pulsations in motors.

Harmonics are distortion waves in the main voltage or current wave .It reduces the effective value of the voltage or current (RMS) and increase the losses in form of heat. So we must eliminate any harmonics by filters.

Harmonis are somtimes useful in heating applications

Harmonics Filters in capacitor banks.

A distorted current has not just a non-sine wave but also, in some cases, a higher tension value and, since a capacitor is very sensible when the tension is over a maximum level indicated by the manufacturer, then we have a problem! By eliminating some harmonics, the electric tension from the circuit will be down near the normal level, so the capacitors are safe!

But not just for the capacitor banks, but for entire installation filters became a very useful device!

Capacitor banks are actually components of the harmonic filters, so, since someone is using them to improve the power factor, it's a good thing to invest in some coils and he has now an Harmonic Filter, which is very good, especially for the neutral wire!

Benefits of harmonic filters

• Harmonic Filters Minimize harmonics in the Electric system and improves the power flow.
• These Filters also provide energy efficiency, Which helps in retaining the life of the asset.
• Make Maximum utilization of power supply and reduce your maintenance cost.
• Using these filters can give you the best results and keep your system maintained.
• Eliminates the need for using a separate APFC Panel, which caters to only power factor correction.

Hybrid Harmonic Filters

Hybrid Harmonic Filters provide for Harmonic Correction and Power Factor Improvement.

Hybrid Harmonic Filters provide the best PERFORMANCE UTILISATION INDEX as compared to both passive filters and active filters.

Hybrid filters are less expensive as compared to active Filters. The biggest benefit of these filters is that it reduces your power bill by controlling the harmonics in the power supply.

0.4kv capacitor banks and filters

11kv capacitor banks and filters

0.4kv active harmonic filters

0.6kv active harmonics filters

0.4kv hybrid harmonic filters