Rongzhi Electric Power is a large-scale Power Quality Filter PQF manufacturer and supplier in China. We have been specialized in High voltage equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We look forward to becoming your long-term partner in China.
Active power filter (APF: Active power filter (Active power filter) is a new type of power electronic device used for dynamic suppression of harmonics and compensation of reactive power. It can quickly track and compensate harmonics of different sizes and frequencies. The reason why it is called active is that compared with passive LC filter, it can only passively absorb harmonics of fixed frequency and size. APF can control and actively output the size, frequency and phase of current by sampling load current and separating each harmonic and reactive power, and quickly respond to offset the corresponding current in the load, realizing dynamic tracking compensation, and can complement both harmonic and reactive power and unbalance.
| Size | 400V |
| 50A-450A | |
| Rated input line voltage | 380V(-40%~+20%) |
| Power frequency | 50/60Hz(Range45Hz~62Hz) |
| Number of Parallelable | unlimited |
| overall efficiency | ≥97% |
| Power network structure | Three phase three wire four phase four wire |
| Current transformer | 150/5~10000/5 |
| circuit topology | Three level |
| performance index | |
| harmonic compensation | support |
| reactive compensation | support |
| unbalance compensation | support |
| harmonic range | >97% |
| fast response time | <100us |
| total reponse time | <10ms |
| Target power factor | Capacitive sensibility is continuously adjustable |
| Switch frequency | 10kHz |
| Cooling Type | Intelligent air cooling |
| noise label | <65dB |
| communication interface | RS485，CAN, network interface |
| communication agreement | General electric protocol. Modbus protocol |
|
Module dis la interface |
LCD multi-function touch color screen |
| Protection function | Protection of overvoltage .short circuit, inverter reverse and over compensation |
| Fault Alarm | Yes |
| Environmental requirement | |
| Altitude | ≤ 1500mm,Beween 1500 and 4000m, according to GB/T3859-2, every 100m increase, the power is reduced by 1% |
| Operating temperaturel | -10℃~+40℃ |
| Relative humidity | 5%~95%，without condensation |
| Protection Grade | Other IP levels can be customized |
1) Greening
The efficiency reaches 97.2%, and the annual energy saving is about 6, 500kwh compared with the active power filter with 95% efficiency
More efficient topology enhanced control algorithm
Thermal design and structural optimization based on accurate models
1) Miniaturization
The volume is only 1/6 of that of similar mainstream brands, occupying less space.
Live to adapt to different working conditions of installation innovation, wall mounted or rack mounted using less raw materials, protect the environment
1) Intelligence
Compensation specified number of harmonic adjustable inductive, capacitive reactive power compensation compensation system unbalance load automatic detection, suppression system resonance monitoring system
2) Modularity
N+1 redundancy, significantly improve system reliability pipelined production, better quality assurance reduce the system single fault point flexible parallel, adapt to different working conditions
3) Functional features
At the same time, the response time is less than 300μs by filtering out 2~50 harmonics or selecting any number of harmonics within 2~50
Adopt 3DSP+CPLD full digital control mode and international famous brand high-speed IGBT, closed-loop control, accurately filter harmonics
4). Use four-phase line technology to eliminate neutral line current
Automatic elimination of resonance, not affected by the grid impedance and system impedance changes with harmonic compensation; Compensating harmonic and reactive power at the same time; At the same time compensate harmonic, reactive power and negative load three phase current unbalance three modes of operation
5) Electronic overload protection
Inverter control has the machine fast FPGA, power digital signal processing function
Modular design, easy to expand multi-machine parallel centralized monitoring function remote network monitoring function
Easy maintenance, in line with the requirements of the working environment, non-machine failure without maintenance
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