Liebert AF2


PRODUCTS

Liebert AF2

Next Generation Active Harmonic Filter

Liebert AF2, the next generation active harmonics solution, is a solid-state power converter that brings you the ultimate Power Quality Solution from harmonic problems to ensure your facility’s Business-Critical Continuity:

With a true active filter design, Liebert AF2 measures the harmonics generated from the non-linear loads and cancel them with its own generated, opposite phase shifted harmonic current of the same amplitude.

Selection of Liebert AF2 depends on the level of correction needed by distribution system from the view point of Load THDi (Current Harmonics) and Power factor. There is no need to measure the impedance of the power system or analyze the
load harmonic spectrum and their individual amplitude.

Wide variety of Choices:

Liebert AF2 now comes with variety of mounting choices.

  • 19‘ rack mount options
  • Wall mount options
  • Floor mount options
  • Improved Current Harmonics and Power
  • Close Loop or Open loop Control enables perfection in harmonic compensation based on applications
  • Scalable, Adaptable
  • Easy to deploy. Set and Forget
  • Easy Monitoring and Control
  • Easy to Install, Fit & forget
  • Compatible to Work with Liebert UPS systems
  • Digital Technology
  • Remote monitoring and easy Communication Capability
Features and Benefits
GENERAL CHARACTERISTICS
Storage -20ºC ~ +70ºC
Operating Temperature +0ºC ~ +40ºC
Relative Humidity <95%
Operating Altitude <1000m
Reference Harmonic Standard EN 61000-3-4, IEEE 519-1992
Reference Design Standand EN60146
Safety Standard EN50178
Electromagnetic Compatibility IEC 610000-4-2, IEC 61000-4-3, IEC 61000-4-4
IEC 61000-4-5, IEC 61000-4-6

 

POWER MODULE SPECIFICATION
Input Voltage 400V + 15%,-20%
380V + 21%,-15%
Phase/Wires 3 phase 4 wires/3 wires
Frequency 50/60±3 Hz (Auto Sensing)
Maximum Compensation
Current/Phase/Power Module
35 Arms
De-rating Compensation
Current/Phase/Power Module(1)
30 Arms
Maximum Compensation
Current for Natural/Power Module
105 Arms
Inrush Current Less than rated current
Current Limitation Yes, at full correcting
Maximum Heat Losses 650 Watt per Power Module
Color RAL9011 (PANTONE Process Black C)
Ingress Protection IP20
Dimensions (WxDxH) 440 x 710 x 131 mm (3U)
Weight 31 Kg (when unpacked)

 

When 2 and above Power Modules work in power scalable configuration, the power module will downgrade automatically from 35A to 30A. It means total capacity will be 60A/90A/120A when 2/3/4 400V power modules are connected in parallel.

 

 

CONTROL PANEL SPECIFICATION
Input Voltage 400V + 15%,-20%
380V + 21%,-15%
Phase/Wires 3 phase 4 wires/3 wires
Frequency  50/60±3 Hz (Auto Sensing)
Compensated Harmonic Orders From 2nd to 51st order.
Individual Harmonic Order selectable up to 12 orders (2nd and ~31st), that works simultaneously.
Higher Order Group Harmonic Compensation (32nd~51st) by Disable/Enable function.
Power Factor Correction Compensate both lagging and leading reactive power. Power factor can be programmed from 0.7 lagging to 0.7 leading
CT Ratio Can be set. Primary Current: 100A~10000A
Ct Location Source Side for Close Loop Control
Load Side for Open Loop Control
Harmonic Attenuation Ratio Typical > 10
Response Time < 20 msec
Number of Power Modules, controllable
by one Control Module
UP to 4 Power Modules
Parallel Operation UP to 8 Control Modules. The maximum filter capacity up to 960A.
Maximum Heat Losses 50 Watt per Control Module
Color RAL9011 (PANTONE Process Black C)
Ingress Protection IP20
Dimensions (WxDxH) 440 x 710 x 86mm (2U)
Weight 5 Kg (when unpacked)
LED Control Panel a. 4 Status LED indicators: POWER ON, FILTERING, FULL CORRECTING and ERROR
b. ON/OFF and RESET key pads.
c. 4 Status LED indicators for Power Module
d. 8 alarm LED indicators for Diagnostic Message.
LCD Control & Display Panel
(Optional)

a. 4 Status LED indicators: POWER ON, FILTERING, FULL CORRECTING and ERROR
b. ON/OFF and RESET key pads.
c.  4 Directional Scrolling Keys/Enter Key/Escape key.
d. LCD Display Panel offers following functions:

  • Meter: parameters, waveform and spectrum.
  • Event Log: UP to 300 records (FIFO).
  • Configuration: Compensation Setting, Compensation Logic Control and System Setting.
  • Multi-language Setting: up to 10 different languages.

 

COMMUNICATION INTERFACE SPECIFICATION
Dry Contact
(Standard Configuration)
a. 5 Output Dry Contracts
b. 1 Input Dry Contract
c. 1 EPO
Communication Interface Standard: RS232/USB
Optional:RS485/RS422 Ethernet Card
Programming Setting by expert service software or LCD control panel.
Monitoring Software
(Optional)
Liebert AF2 Monitoring Software
Communication Protocol J-Bus/MOD Bus Protocol

 

FLOOR MOUNT PANEL SPECIFICATION
Maximum Installation Capacity Panel with Bezel: 180Arms
(2 Control Modules ÷ 6 Power Modules)
Panel without Bezel: 240Arms
(2 Control Modules ÷ 8 Power Modules)
Color RAL7021
Ingress Protection IP20
Dimensions (WxDxH) 600 x 1000 x 1950mm
Maximum Weight 130 Kg (when unpacked)

 

Technical Specification