PAMax-R active power filter was designed for internet data center (IDC). It adopted 19 inch standard rack having advantages of small size, light weight, safe and reliable.

PAMax-R active power filter was designed and manufactured according to industrial product standards. It can meet the various commercial and industrial applications. This product collects harmonic filtering, reactive power compensation and three-phase imbalance correction in one b body. It is an ideal choice for the power quality control.

Basic Functions
  • Harmonic filtering: harmonic filter function which can set the number of harmonic compensation and filtering rate.
  • Dynamic reactive power compensation: reactive power compensation function which can set target power factor(inductive or capacitive).
  • Three phase unbalance correction: three phase unbalance correction(active power unbalance compensation) function which can be set.


PAMax-R technical parameter
  • Multiple work mode: has work modes of “filter priority”, “reactive power priority”, “harmonic filtering only”, “reactive power compensation only”, can flexibly choose work mode according to specific details of power distribution system.
  • Comprehensive analysis and display function: Real-time take samples of current and voltage, analysis system harmonic, reactive power and active power, and display in the form of chart and waveform.
Main Characteristics
  1. Efficient energy-saving
    • Constant frequency PWM patent technology, high current tracking speed, small ripple wave, low power loss.
    • The low loss amorphous alloy magnetic core reactor, low noise, high efficiency.
    • Overall loss is less than 3%.
  2. High filtering ability
    • Multiple DSP cooperative control, high accuracy, fast speed.
    • High harmonic filtering rate, for target harmonic, effective filtering rate can be  97%.
    • Can filter 2nd to 50th harmonic.
  3. Multi-function, multi-mode, high adaptability
    • Harmonic graded compensation function, harmonic reactive power integrated compensation, active power balance compensation function.
    • Advanced control algorithm, adapt to all kinds of complicated site and stable operation, can be parallel running with reactive power compensation cabinet.
    • Source current and load current detection function can be programmable at site.
    • True color touch screen.
    • RS485 port, standard MODBUS RTU communication protocol, computer remote monitor function.
  4. stable, reliable
    • Design and manufacture according to industrial standard, safe and reliable.
    • Strict thermal design, insure system running safely and reliably.
    • Have over-voltage, over-current and over-heat multiple protection functions.
    • Automatic current limiting after output full load, no need to worry about over load.
    • Fault self diagnosis function.
    • History event record function.