Rongzhi Electric Power is a large-scale Active Harmonic Compensation Filter 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) is a new type of power harmonic control special equipment made of modern power electronics technology and digital signal processing technology based on high speed DSP devices. It consists of two main parts: command current operation circuit and compensation current generation circuit. The command current operation circuit monitors the current in the line in real time, converts the analog current signal into digital signal, and sends the signal to the high-speed digital signal processor (DSP) for processing, separates the harmonic wave from the fundamental wave, and sends the driving pulse to the compensation current generating circuit in the form of PWM signal to drive the IGBT or IPM power module. A compensating current with the same amplitude and opposite polarity as the harmonic current in the power grid is generated and injected into the power grid to compensate or cancel the harmonic current and actively eliminate the power harmonic.
| 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.The SPA4 series is the perfect solution for harmonic control
2.Dynamic current compensation eliminates harmonics and improves power factor
3.Reduce the heating of harmonics in cables, switches and transformers
4.Reduce power failure and time caused by harmonics
5.Improve power utilization and reduce operating costs
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