Ue Hz THDIR% THDVR% I(250Hz)% Detuning choke
(180Hz – N=3,6 – P=7,7%)
415V 50 > 27% ≤ 6% ≤ 25% 100% non linear load connected

Ue: Rated voltage.
THDIR%: Admissible current total harmonic distortion of the plant.
THDIVr%: Admissible voltage total harmonic distortion of the plant.
I(250Hz)%: Percentage 5th harmonic current.

Technical characteristics

Rated operational voltage Ue = 415V
Rated frequency 50Hz
Max current overload In (PFC unit) 1.3xIn
Max current overload In (capacitors) 1.3xIn (continuous)
Max voltage overload Vn (PFC unit) 1.1xUe
Max voltage overload Vn (capacitors) 3xUn (for 1 minute)
Temperature range (PFC unit) -5/+40°C
Temperature range (capacitors) -25/+55°C
Discharge device On each bank
Installation Indoor
Service Continuous
Capacitors connection Delta
Operation devices Electronic Fast Switches
Inner surface finish Zinc passivation
Applicable standards (cabinet) IEC 61439-1/2 IEC61921 IEC61642
Applicable standards (capacitors) IEC 60831-1/2
Main characteristics

Power factor correction systems indicated for plants with very fast working cycles (from 150 msecs to 1 sec) and high current harmonic distortion (higher than 27%).
Use of high energy density metallised polypropylene capacitors ensures enhanced performance, high resistance to strong voltage.

  • Zinc-passivated metallic enclosure painted with epossidic dust paint, colour RAL 7035.
  • Auxiliary transformer to separate power and auxiliary circuit parts (230V).
  • Load-break switch with door interlock.
  • Electronic fast switches.
  • Self-extinguish cable according to IEC 50267-2-1 standards.
  • Microprocessor power factor correction relay fitted with harmonic protection module.
  • Un = 525V three phase self-healing high energy density metallized polypropylene capacitors.
  • Three-phase detuning chokes with (180Hz tuning frequency).
  • Total available reactive power switching time: approximately 60millisecs.