Active Harmonic Filters

The PB-SERIES are an active harmonic filter system for large buildings as well as automation, wind-turbine and various other industrial applications eliminating harmonic oscillations and consequently costs for reactive energy. The filter monitors the current signal and compensates for the unwanted elements of the measured current. Thus, the filter ensures a harmonic suppression independently of the number of loads. Furthermore the filter corrects the power factor, improving the system efficiency while reducing harmonic pollution.

Mechanical and electrical modifications to standard modules are available. In addition, Schaefer can design and manufacture fully custom solutions. Let Schaefer be your Custom Power Supply Design Solution Partner.  

NEW Active Harmonic Filter Brochure
High Voltage & High Current
Liquid Cooled
IP65 rated
560 to 690Vac three phase systems.
140A AHF pluggable modules (4 per system) = 560A per cabinet
Secondary cooling loop
Ideal for Oil Platforms and 600VAC Power Systems/Grids

Plug & Play Rack Modules

Air-Cooled

Liquid-Cooled

60A |480V

60A |480V

PBAF 400-60-QL

60A |480V

PBAF 400-60-QW

140A | 690V

PBAF 690-140-W
Features
Hardware
Software
Features
  • Protection class: IP 20 system unit
  • System unit compensation current: 60A Phase, 180A neutral lead (140A Phase for 140A | 690V)
  • Connection type: 3 phase; 3 phase + neutral lead
  • Inverter topology: 3-Level IGBT with DC Voltage link
  • Modulation frequency: 24kHz
  • Control frequency: 48kHz
  • Response time: 21µs
  • Settling time: < 200µs
  • 3 or 4 conductors
Hardware
  • 7″ or 12″ Display
  • Service Kit with 7″ or 12″ Display
  • 5A current transformer
Software

Web Interface: Remote monitoring & configuration via PC; Developer-Kit: C++, .NET, C#, JAVA; Modbus-Interface

Cabinet Solutions

Air-Cooled

Liquid-Cooled

Up to 5 x 60A Modules |480V

Up to 5 x 60A Modules |480V

Up to 5 x 60A Modules |480V

PBAF 400-60-QW

Up to 4 x 140A Modules |690V

PBAF 690-140-W
Features
Hardware
Software
Features
  • Protection class: IP 42 cabinet system (IP 65 cabinet system for liquid-cooled system)
  • System unit compensation current: 60A Phase, 180A neutral lead
  • Connection type: 3 phase; 3 phase + neutral lead
  • Inverter topology: 3-Level IGBT with DC Voltage link
  • Modulation frequency: 24kHz (16kHz for 690V system)
  • Control frequency: 48kHz (32kHz for 690V System)
  • Response time: 21µs (32µs for 690V system)
  • Settling time: < 200µs
  • 3 or 4 conductors
Hardware
  • 7″ or 12″ Display
  • Service Kit with 7″ or 12″ Display
  • 5A current transformer
Software

Web Interface: Remote monitoring & configuration via PC; Developer-Kit: C++, .NET, C#, JAVA; Modbus-Interface

Wallmount Solutions

Air-Cooled

60A |480V

120A |480V

60A |480V

Features
Hardware
Software
Features
  • Protection class: IP 20 system unit
  • System unit compensation current: 60A Phase, 180A neutral lead (120A Phase for 120A | 480V)
  • Connection type: 3 phase; 3 phase + neutral lead
  • Inverter topology: 3-Level IGBT with DC Voltage link
  • Modulation frequency: 24kHz
  • Control frequency: 48kHz
  • Response time: 21µs
  • Settling time: < 200µs
  • 3 or 4 conductors
Hardware
  • 7″ or 12″ Display
  • Service Kit with 7″ or 12″ Display
  • 5A current transformer
Software

Web Interface: Remote monitoring & configuration via PC; Developer-Kit: C++, .NET, C#, JAVA; Modbus-Interface

Mechanical and electrical modifications to standard modules are available. In addition, Schaefer can design and manufacture fully custom solutions. Let Schaefer be your Custom Power Supply Design Solution Partner.

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