PQE pHF – Passive Filter
Simple solutions for classic grid problems – high reliability, low losses
Harmonic filter
SOFIA
Universal broadband filter
PQE UBM
Broadband filter
PQE uBF
Resonance damping filter
RESI
Minimize network interference – with proven passive filters
In many cases, passive filters offer an economical and reliable solution for effectively minimizing disruptive mains interference. They help with:
✔ Commutations
✔ Harmonics
✔ High currents in the neutral conductor
✔ Interference from ripple control signals
✔ High-frequency disturbances
Thanks to their low losses and high reliability, PQ ENGINEERING's passive harmonic filters are a proven choice for a stable and safe power supply.
Efficient passive filters to reduce network interference
Harmonics
Inductive and capacitive reactive power
Grid asymmetry
Resonance effects
Your advantages with passive filters from PQ ENGINEERING
Economical solution – cost-effective reduction of grid disturbances
Very low losses – efficient operation with minimal energy consumption
Robust construction – durable technology for long-term use – durable technology for long-term use
Low maintenance – minimal maintenance with maximum performance
Harmonic filter SOFIA
No measurements are required for filter design. Losses approximately 30 μs lower than conventional passive filters and approximately 60 μs lower than active filters make Sofia the most economical harmonic filter. The control concept eliminates filter overload.
Functions
- Filter harmonics
- Compensate reactive power
- Automatic adjustment of the suction effect
- No overload at high harmonic levels
- Prepared for the damping of mains resonances
Technical data
- Rated voltage up to 690 V
- Filter current up to 360 A (5th harmonic), up to 180 A (7th harmonic), up to 100 A (11th harmonic)
- Touch display
- Protection class up to IP54
Areas of application
- Business
- industry
- Power plants
- Applications with high filter requirements
UBM universal broadband filter PQE
The PQE UBM filters phase-to-phase and phase-to-N/PE interference. This allows both common-mode and differential-mode interference to be eliminated with a single filter.
Functions
- Cost-effective broadband filter solution
- Dampen resonances
- Supraharmonics down to 20 kHz
- Modularly expandable in the PQE hMF system
- Low-loss compensation
Technical data
- Rated voltage up to 690 V
- Filter current up to 60A
- Air cooling
- Web server
- Voltage-controlled control
- Version according to IEC and UL standards
Areas of application
- marine
- Business
- industry
- Automotive
- Power plants
- Energy supply
- Infrastructure
PQE uBF/480 broadband filter
An extension with an optional transient filter (Sinetamer) can be integrated in the same housing.
The PQE uBF is operated via a text display with function keys. The device features internal power and temperature monitoring, as well as a temperature-controlled fan.
The PQE uBF can be used as a standalone wall-mounted solution. Its functionality can also be expanded by combining it with the PQE aHF-W active line filter and the PQE SVG-W dynamic compensation solutions.
Functions
- Low-loss resonance damping
- Reduction of supraharmonics up to 10 Hz
- Can be used for common-mode and differential-mode interference
- Transient filtering (option)
Technical data
- Rated voltage 400..480 V
- Filter currents 29..35 A
- Protection class IP20
- 5-wire connection
Areas of application
- Business
- Data centers
- Light industry
- Infrastructure
Resonance damping filter RESI
RESI filters are used when interference occurs at frequencies higher than the classic harmonics. Pure LC absorption circuits cannot eliminate line resonances, but only shift their frequency. Resonances can be effectively dampened by introducing a damping resistor. RESI systems are available as modules, floor-standing units, and cabinet systems. They are also ideal for damping the effects of switching frequencies and commutation dips in high-power converters.
Functions
- Damping of network resonances
- Filtering of supraharmonics up to min. 15 kHz
- Reduction of common mode and differential mode interference
Technical data
- Rated voltage up to 690 V
- Filter current up to 144 A
- Protection class up to IP54
- 5-wire connection
Areas of application
- Business
- industry
- Powerful inverter drives
- Power plants
- Energy supplier
- PV systems
- wind turbines