Product Description

Active Power filter
Active power filter (APF) is designed to filter the harmonics injected by non-linear loads in power networks. It can analyze the line current harmonics drawn by the loads and generate a compensation current dynamically at the opposite phase angle, thereby “neutralizing” the harmonic currents.

Features

◎ Based on 3-Level topology circuit

◎ Modular design for a shorter delivery cycle and easy maintenance.

◎ Rack-mounted or wall-mounted design which can be easily combined and installed as needed.

◎ It is possible to compensate the 2nd~51st harmonics, or select a specific order of harmonics to compensate separately.

◎ Flexible compensation modes:

◎ Harmonic compensation

◎ Reactive power compensation

◎ Three phase imbalance compensation

◎ Harmonic +Reactive power +Imbalance

◎ Remote communication interfaces, with real-time monitoring being achieved via PC machines.

◎ A full automatic detection runs during the whole compensation process, and should it be restarted, self-diagnosis will function; then after the fault is removed, it will be automatically put into use.

◎ Free of harmonic resonance.

◎ A user-friendly human-machine interface is configured to operate, and display system’s real-time parameters like voltage/current waveforms, active power, reactive power, apparent power, power factor, harmonics, etc.

◎ Intelligent control circuit with perfect protection functions (against overvoltage, under voltage, over-heating, over current, etc.).

Technical Specifications

Items	Specifications
Module capacity	25A/35A, 50A/60A, 75A/100A
Power supply voltage	400V (-43%~+14%)
Power supply frequency	50/60Hz (Range: 45~63Hz)
Wiring method	3P3W/3P4W
Harmonic spectrum	2nd~50th
Harmonic setting	All harmonic contents can be selected simultaneously
Efficiency	Up to 98%
Filter performance	THDi<5%
Neutral filtering capacity	Three times of rated current
Response time	<15ms
Reactive time	<50μs
Resonance protection	Yes
Cooling mode	Forced air cooling
Operation mode	Harmonic compensation(FFT analysis, instantaneous reactive power)
	Reactive power compensation (-1~+1)
	Three phase imbalance compensation
Switching frequency	20kHz
Power loss	<3%
Communication interface	RS485 (Modbus RTU), TCP/IP (Ethernet)
Digital I/O	4DI/6DO
Alarm events	Yes
Monitoring	Via centralized monitoring PQ viewer
Mounting type	Rack/Wall mounted
Protection level	IP20
Altitude	1500m, if >1500m, the power decreases by 1% every 100m.
Operation temperature	-250C~+450C
Relative humidity	5%~95%, non-condensing
Installation environment	Indoor use
Dimension W*D*H(mm) And net weight	25A/35S: 440*470*150  18KG 50A/60A: 440*590*190  35KG 75A/100A: 440*600*230  36KG
Compliance with Standards	IEEE 519, IEC 61000-3-6, ERG5/4

Payment Terms︰ TT, L/C

Product Image