Introduction

Composed of multiple AHF modules, HTQF C series floor-standing AHF can provide harmonic compensation current from 30A up to 600A per cabinet. In addition, with highly customizable floor-standing cabinet, it can be flexible in terms of protection class and dimensions to cope with variable site conditions

Proven Performance Powered by HTQF AHF Modules

The HTQF C series floor-standing AHF takes advantage of the proven technology of HTQF AHF modules and features the same cutting-edge harmonic filtering performance.

● Voltage ratings from 230V to 690V

● 3-level IGBT inverter topology for 20kHz switching frequency 

● Dual-DSP controller in each module for real-time current tracking and dynamic compensation

● Target THDi ≤5%

● Filtering up 50th harmonics simultaneously

● Selective compensation: ON/OFF and filtering factor (amplitude) for each order can be set individually

● 5ms response time

● Dual algorithms: Fast Fourier Transformation (FFT) and Instantaneous Reactive Theory (P-Q Theory)

● Energy efficiency above 97%

● Dynamic reactive power compensation for both inductive and capacitive loads

● Load balancing function available in both 3-wire and 4-wire models

● Multiple working modes with task priority concept for multi-task applications

When One Plus One is Greater Than Two 

HTQF C series floor-standing AHF is not just the sum of individual AHF modules. Instead, it offers much more added features than AHF modules to form a complete harmonic filtering solution.

● 600A maximum for single cabinet

● Independent operation for each AHF module, one module failure won't affect other modules' operation

● Each AHF module protected by individual circuit breaker without disconnecting the whole cabinet in case of fault

● Hot-swappable module and cabinet available as option

● 7-inch multiple-language HMI as standard

● Comprehensive grid side and load side electrical parameters displayed

● Waveform and harmonic bar chart displayed

● Detailed alarms and fault messages with time stamps are stored in history page for quick troubleshooting

● USB host function used to export history events and screenshots for remote fault diagnosis

● The operating status of all modules can be monitored centrally on the HMI

● Status of major components such as IGBTs, reactors, DC link in each module displayed

● All the modules can be configured simultaneously or individually

● TCP/IP or Profibus communication available as option

● Protection class available from IP31 up to IP54

● Highly customizable cabinet to cope with all site requirements

● Dedicated ventilation fan for each AHF module for optimal airflow

● Each AHF module and the whole cabinet double checked with patented harmonic and reactive load simulator.

Specifications