E-Cube Energy's Active Harmonic Filter (AHF) are IGBT based real time harmonic compensators suitable for direct operating in three-phase LV power grid and through suitable setup transformers for MV applications for filtering harmonics that are generated by various sources which inherently have non-linear load like VFD, Diode, Computer, & all electronics equipment’s (where frequency as well as voltage conversion system is used).

Key Features

  • current negation
  • dsp controller
  • IEEE-519
  • no detailed studies required
  • modular
  • smaller footprint
  • scalable

Product Application

Automotive,Arc Welding,Metals, Cement, Chemicals, Pharmaceuticals, Textiles, Petrochemicals, Lifts, Port, Cranes, Pulp and Paper Wind farms & Solar Power Water and Waste Water treatment Crushers & Shredders, HVAC, Automation

Product FEATURES

BITCON BITActive range of filters work on the principle of negation – injecting the reverse of the harmonic currents that need to be compensated within the electrical networks.

The system adopts an advanced 3-level structure and consists of digital signal processors (DSP), large programmable controllers and high power electronic devices, which has excellent performance and superior reliability.

AHF is connected in parallel with non-linear loads, and uses one set of current transformers (CT) to detect the load current. It calculates each order harmonic current by FFT algorithms in its DSP microchips, and then generates a compensating current with the same amplitude but opposite phase angles to the detected harmonic current, which cancels out the original load harmonics. The Active Harmonic Filter (AHF) Compensate a wide range of harmonic frequency and any randomly specified harmonic. AHF not only eliminates harmonic current from the load side, but it also mitigates harmonic voltage caused by harmonic currents. The AHF system can also improve power factor (PF) and correct load imbalances in the power system.

It has high efficiency and low loss and provides perfect system protection functions. The module is hot-swappable, which is convenient for replacement and installation also support remote power on/off function via computer monitoring. Easy maintenance and capacity expansion like the modular structure supports simple plug-in replacement and capacity expansion, and Poka-yoke design requires no on-site maintenance

Product Benefits

  • Wide capacity coverage of 50A ~ 525A of a single cabinet, unlimited connection in parallel of cabinet system
  • Applicable to all work condition of the device is able to operate under high temperature up to 50oC and salt spray corrosive conditions, can withstand grade-9 seismic intensity and is compatible with the diesel engine generating system.
  • Automatic functions of self-checking start, settable soft start time, and emergency stop (EPO), etc.
  • Optional pluggable LCM/HCM display with user-friendly interface Event Log, automatic fault alarm, alarm history and other parameter setting functions with Ethernet, USB and RS-485 modules.

TECHNICAL SPECIFICATIONS

Electric Connection AC 400V : 3P3W/3P4W
AC 690V : 3P3W
Rated Voltage AC 400V, AC 690V
Rated Frequency 50Hz (60Hz) +/- 10%
AHF System Type Wall-mounted Modular
Draw Type Modular
Fixed Type Modular
Draw Type Cabinet
Fixed Type Cabinet
Input Voltage THD Range ≤15%
Rated Current per Module AC 400V : 50Amp, 75Amp, 100Amp
AC 690V : 100Amp
Rated Current per Cabinet AC 400V : 50~525Amp (module combination) AC 690V : 100~500Amp (module combination)
Incoming / Outgoing MCCB / ACB as Incomer and HRC Fuses for backup protection (other combination on request)
Redundancy Each module is an independent filtering system
Harmonic Elimination Range AC 400V : 2rd ~ 50th order (Selectable)
AC 690V : 2rd ~ 31st order (Selectable)
Controller DSP control
Communication Modbus Protocol, RS232/485
IP Grade of Cabinet IP20, IP30 or customization
Ambient Temperature -10~50 ℃
Cooling method Intelligent forced air cooling
Thermal Loss ≤3% of APF rated capacity (kVA)
Switching Frequency AC 400V - 50A, 75A : 60kHz
AC 400V - 100A : 30kHz
AC 690A : 20kHz
Imbalance Correction Capability AC 400V : Mitigate negative and zero sequence
AC 690V : Mitigate negative sequence

PQC Series AHF Model

APF System Type Structure APF Capacity Dimension (W×D×H) Weight
Independent Module System

Wall-mounted

Draw Type Modular

Fixed Type Modular

50A

50A

75A

50A

75A

100A

100A

440×174×600 mm

440×522×174 mm

440×522×174 mm

440×522×174 mm

440×522×174 mm

605×728.2×220mm

605×728.2×270 mm

30kg

40kg

42kg

30kg

42kg

65kg

78kg

Cabinet System (Multiple Modules) Draw Type Cabinet

50

75

150

225

300

375

450

525

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

208kg

210kg

260kg

309kg

359kg

408kg

458kg

507kg

Fixed Type Cabinet

50

75

100

100

150

150

200

200

225

250

300

300

350

375

400

450

500

525

100

200

300

400

500

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

800×1000×2200 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

800×1000×2200 mm

600×800×2000 mm

600×800×2000 mm

600×800×2000 mm

800×1000×2200 mm

600×800×2000 mm

600×800×2000 mm

800×1000×2200 mm

600×800×2000 mm

800×1000×2200 mm

600×800×2000 mm

800×1000×2200 mm

800×1000×2200 mm

800×1000×2200 mm

800×1000×2200 mm

800×1000×2200 mm

200kg

203kg

235kg

265kg

270kg

245kg

320kg

330kg

287kg

360kg

395kg

395kg

430kg

371kg

460kg

413kg

522kg

455kg

280kg

360kg

440kg

520kg

600kg

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