Active harmonic filter – multiwave


multiwave active significantly increases operational safety The loads in industrial networks are increasingly dominated by a large number of small and large converters. In this context, two effects can be observed. Due to the falling number of motors operated directly on the grid, the need for inductive fundamental reactive power is decreasing. At the same time, harmonic currents are increased. The impedance of the network transformer plays a decisive role. A large part of the harmonic voltage is created here, leading to faults in all consumers. This results in unreliable operation of the devices and an increased number of malfunctions.

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Product detail

  • Harmonic compensation up to the 50th harmonic
  • Easy expansion thanks to modular system
  • Current- or voltage-regulated control
  • Automatically adapts to changing conditions in operation
  • Reactive power compensation, phase-selective, inductive, and capacitive
  • Load balancing, compensation for phase shifts
  • Robust, reliably, and with higher temperature range up to 50°C without derating
  • Harmonic filtering, selective in percentage or limits from the standard
General technical data
Rated voltage AC400 V (max. 415 V) ±10%
Network frequency 50 / 60 Hz
Peak current2x rated current
Cable connection3-phase + PE + N/PEN, neutral conductor connection is required (Network configuration: TN)
Compensation3-wire operation: External conductor, symmetrical and asymmetrical (positive and negative sequence network)
4-wire operation: also has neutral conductor (positive, negative, and zero sequence network)
Compensation1st – 51st harmonic (50 Hz) // 1st – 41st harmonic (60 Hz) // 1st – 51st harmonic (50 Hz) // 1st – 41st Harmonic (60 Hz)
All harmonics can be filtered at the same time
Additional functions– Dynamic reactive power compensation
– Active and reactive power balancing (negative sequence network up to 60%, zero sequence network up to 30% rated current)
– Voltage stabilization through Q(U) control
– Flicker compensation
– Neutral conductor load reduction
Operating voltage AC400 V
Power dissipation< 2.6% of compensation power maximum, < 2.6% of compensation power maximum, < 2.3% in typical operating, < 0.7% in idle speed, < 100 W in standby
Switching frequency20 kHz (low-loss version)
ControlsInternal control computer with two digital signal processors
Device setup and displayVia internal web servers (TCP/IP) and PC, SD card, or Anybus interface (field bus interface)
Response time << 1ms
Interfaces – Ethernet (TCP/IP)
 – Various field bus systems via Optional Anybus plug-in module (e.g. Profinet, Modbus TCP)
 – 4x digital outputs: 250 VAC (3 A) / 110 VDC (0.7 A) / 24 VDC (1 A), potential and configurable
 – 4x digital inputs: 24 VDC (10 mA), configurable for remote control and easy additional parameter adjustment
Current transformers3-phase current measurement, xx/5 A or xx/1 A (configurable)
The required current transformers are not included, 15 VA, class 1 or better recommended
Inverters3-level IGBT with intermediate voltage circuit (electrolytic capacitors)
Ambient conditions– Maximum ambient temperature without reduced performance: 40°C
– Recommended ambient temperature for continuous operation: < 25°C
– Minimum operating temperature: 0°C
– Relative humidity: maximum 95%
– Transport/storage: -20° C … 70 °C
Overvoltage categoryCAT III, 300 V
 EMC classStandard: EN 55011, class A1 (industrial environment), optional: Class B (residential area)
StandardsEN 50178, EN 61439-1, EN 61439-2, EN 61-6-2, EN 61000-6-4, EN 55011
MIT Maximize Integrated Technology Co.,Ltd.

MIT Maximize Integrated Technology Co.,Ltd. is a global leader in power quality, industrial automation and power control product and service solutions. Products include circuit breakers, switchgear, UPS and DC power systems, power distribution units, motor controls, meters, sensors, relays and inverters. The principal markets for the Electrical Sector are industrial, institutional, government, utility, commercial, residential, information technology, telecommunications and original equipment manufacturer customers.