Rongzhi Electric Power is a large-scale Active Dynamic Filter ADF 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 |
Active filter compared with passive filter, good governance effect, mainly can filter out many times and high harmonics at the same time, will not cause resonance, but the price is relatively high! The practical application of safety factor is very low, the international common practice is to transformer boost, to ensure reliability, the relevant national departments also require the form of transformer boost and active filter combination, control high voltage harmonics!
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