PFC system FH20.S

Overview
Detuned power factor correction (PFC) solutions using high-gradient metallized polypropylene capacitors for industrial low-voltage networks. Systems are designed to provide reactive power compensation while limiting resonance with supply network harmonics.

Key technical specifications

• Nominal system voltage Ue: 400–415 V
• Capacitor nominal voltage Un: 550 V
• Maximum operating voltage Umax: 600 V
• Frequency: 50 Hz
• THDIR: 100%
• I at 250 Hz (I250Hz%): ≤25%
• THD voltage (THDVR%): ≤6%
• Detuning frequency fD: 180 Hz

Available configurations

• MULTIrack (detuned racks): example assemblies for reactive powers Ue=400 V — 20 kVAr, 40 kVAr, 80 kVAr (example part numbers: IX5DFF220050893, IX5DFF240050893, IX5DFF280050893)
• MULTImatic (detuned automatic PFC): automatic panels with selectable reactive power steps from ~100 kVAr to 1032 kVAr depending on model; options include different load break switches, short-circuit withstand (Icc) and IP4X enclosures (example part numbers: IU7AFF310050786 … IU7AFF396050786)
• MULTImatic IP55: same automatic configurations in IP55 enclosures for harsher environments (example part numbers: IV7AFF310050786 … IV7AFF396050786)

Typical parameters per configuration

• Reactive power ranges: from 20 kVAr (MULTIrack) up to 1032 kVAr (MULTImatic variants)
• Load break switch ratings: 250 A, 400 A, 630 A, 800 A, 1250 A or dual arrangements depending on model
• Icc values and panel weights vary by model (see list card for each part number)

Applications and compliance

• Industrial plants, power distribution and utilities requiring detuned PFC to limit parallel resonance
• Reduction of reactive power demand and mitigation of current harmonics
• Designed to meet standard requirements for low-voltage reactive compensation installations

Ordering and documentation

• Part numbers listed for each configuration; consult the list card/datasheet for detailed electrical and mechanical data
• Specify required reactive power, enclosure rating (IP00/IP4X/IP55) and load break switch rating when ordering