AHF - Active Harmonic Filter

  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