Rongzhi Electric Power is a large-scale 300A Active Harmonic 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: 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. High filtering accuracy, harmonic current filtering rate can reach more than 97%;
2. Wide filtering range, filtering times: 2-50 harmonics and interharmonics;
3. Fast response to load fluctuations, with a response time of 1us;
4. Dynamic injection current to suppress harmonics and compensate power factor;
5. It will not resonate with the system;
6. Can be multi-unit combination expansion capacity;
7. Suppress system overvoltage to improve system voltage stability
8. Damping power oscillation of power system;
9. Can suppress voltage flicker, compensation three-phase unbalance, improve the power factor;
10. Strong self-protection and stability of the system.
1. Rated working voltage: 380V/220V, 50Hz
2. Rated harmonic compensation capacity: 50A/100A/150A/200A
3. Power consumption of the whole machine: less than 3% of capacity
4. Harmonic suppression effect: to meet the national standard requirements, stable THD can be reduced to less than 5%
5. Rated insulation voltage: 3000V AC, 2500V DC
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