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Schäfer Elektronik GmbH
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Schaefer - Model PB-Series - Active ...

Schaefer - Model PB-Series -Active Harmonic Filters

FromSchäfer Elektronik GmbH

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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.

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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

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

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