Harmonic absorption filters are used when it is necessary to reduce the
harmonic voltage and current distortion in the supply system. Absorption
filters are formed by capacitors connected in series with reactors, tuned to
the frequency of the harmonic to be suppressed. Filters are assembled in
metal cabinets of LF type and include contactors and high rupture capacity
fuses for short circuit protection. Thermal protection of the filter is achieved
by means of thermal sensors located in the core of the reactors.
Ejemplo de filtro combinado/ Example of combined filter:
350 kvar 400 V 50 Hz, + 70 A 250 Hz, + 50 A 350 Hz
c aracterísticas técnicas /t eChniCal CharaCteristiCs
• Tensión nominal/Rated voltages......230, 400, 415, 480 V
• Frecuencia de red/ ............................50 Hz (60 Hz)
Network frequency
• Sintonización filtros/Filter tuning .....5 º, 7º , 11º, 13º
• Regulación/Regulation ......................por corriente o por armónicos/
by current or by harmonics
• Grado de protección/ ......................IP20
Degree of protection
• C***trucción/C***truccion ................Armario metálico/Metal cabinet
• Color armario/Cabinet colour ........Gris/Grey RAL 7035
• Instalación/Installation ......................Interior (sobre suelo)/
Indoor (floor mounting)
• Normas/Standa*** ............................IEC 60831, IEC 60439, IEC 61642
50 Hz 400V
Armónico absorbido
Absorption Filter tuning
I armónica max (A)
Maximum harmonic current
QN (kvar) Irms (A)
5º, 7º, 11º, 13º 40 20,0 50
5º, 7º, 11º, 13º 80 41,0 100
e scalones estándar / s tandard steps