Product description
Product Description Power quality Solutions - harmonic filters . Active harmonic filter -AHF Active Power filter-APF Our equipment is suitable for 400V /690V , 50A/100A/150A/200A/250A/300A, 3P3W/3P4W, Modular design or Without modular desgin distribution network .
APF active power filter is a new type of power electronic device to inhibit harmonics and compensate reactive power in a dynamic manner. The working principle of APF active power filter: three phase converter composed of IGBT is paralleled in the power grid via the serial reactor; the load current is measured by APF control system via current transformer; the real-time detecting circuit will distinguish harmonics and basic wave reactive power . And then control system will make a quick computation and trigger IGBT with latest PWM control technology. The three phase current converter composed of large capacity IGBT will inject current in the system; such current is equal to harmonic current of the load current; both are in opposite direction and can be offset each other to filter harmonic and ensure final current in the system in sine wave form. Technical Parameters
SN | Parameters | Value |
1 | Power Supply Voltage(kV) | 0.4/0.69kV (±15%) |
2 | Power Supply Frequency (Hz) | 50/60Hz |
3 | Power Supply Mode | Three-phase three wires or three-phase four wires |
4 | Harmonic Compensation Components | 2~50 |
5 | Response Time (ms) | <5ms |
6 | Output Current(A) | 25~300A |
7 | Protection Mode | Over current, overheat, phase loss, Error-phase, DC busbar over/under voltage,Current limit for overload etc |
8 | Loss | <5% |
9 | Operation Display | Touch screen |
10 | Altitude | <1000m |
11 | Relative Humidity | <90% (250C) |
12 | Cooling Mode | Forced air cooling |
13 | IP | IP30 |
14 | Color | RAL7032 |
15 | Communication | RS485/RS232 |