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Active Power Filter (APF)

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Active Power Filter (APF)

Our active power filter is an advanced power electronic device. It is designed with a digital signal processor, and employs high frequency power electronic conversion technology.

Applications of Active Power Filter
The active power filter is particularly designed for harmonic suppression and dynamic reactive power compensation. It is widely used in power supply system of power systems, oil plants, tobacco plants, chemical factories, metallurgical factories pharmaceutical plants, shipbuilding factories, automobile factories, telecommunication companies, cement plants, mine factories, electrified railways, paper plants, precision machinery factories, welding plants, textile mills, print factories, precision electronics and semiconductor factories, etc.

Features of Active Power Filter
1. Real-time monitoring and dynamic compensation
Our active power filter adopts harmonic current detection technology to monitor the harmonic current at real time. Once instantaneous reactive power is detected, our active filter will offer dynamic compensation to the harmonic current immediately.

2. Excellent compensation performance
Our active power filter can eliminate the resonance produced by the harmonic of the power system, with the help of the system\'s impendance. Its compensation performance will not be affected by the impendance.

3. Flexible compensation
The active power filter is multifunctional. It not only can control the harmonic, but also can make reactive power compensation. Meanwhile, it also can improve the power factor.

Our active power filter can compensate either single harmonic or several harmonic. It also can control the indicated secondary harmonic while controlling the harmonic.

4. DSP intelligent monitoring
Our active power filter is designed with digital signal processor (DPS), so it has a accurate and useful harmonic monitoring and compensation. Furthermore, it has functions of intelligent monitoring and remote monitoring through which users can know the working status and running parameter of the active power filter at real-time.

5. Advanced power conversion design
The active power filter adopts the latest IGBT high-frequency switching devices and full-bridge PWM converters. It features high efficiency, stable performance, reliability, and small volume. Besides, the capacity of our active power filter can be designed according to your requirements.

6. Standard modular design
The power circuit or control circuit uses module or pluggable unit to carry out standardization of production. This greatly guarantees the reliability of our active power filter.

In addition, our active power filter is easy to maintain.

The Parameters of Active Power Filter

Control harmonic current value	45A	75A		100A	150A	200A
Power supply voltage	380 (1 15%) V
Power supply frequency	50 (1 1%) Hz
Power supply phase quantity	Three phases three wires or three phases four wires
Current transformer	/ 5A
Times of harmonic compensation	2 ~ 25 times
Response time	20 ms
Compensate ability	Complete compensation within the rated capacity. Once the required compensation capacity exceeds the rated capacity, users have to depend on the maximum compensate ability of APF.
Protection	Over-current, over-temperature, power supply (under-voltage), power supply (short of phase), power supply (reverse phase).
Cooling way	Forced air-cooled by fan
Power loss	< 5%
Display	LCD
Working ambient temperature	-10 ~ + 45
Relative humidity	<90% ( 25)
Noise	<65dB
Protection class of enclosure	IP20
Body size (WHD)(mm)	6001200400		6002200200		8002200600
	It\'s available to change if necessary.
Net weight	150 kg	200 kg			400 kg

SH Power Co.,Ltd. is a main manufacturer of active power filters. Over ten years manufacturing experience in this industry has enable us to offer high quality UPS products to our customers. These products could be off line UPS, online UPS, LCD UPS, LED UPS, and more.

Due to reliable performance and reasonable prices, our CE certified UPS products are widely exported to the United States, Russia, Brazil, Germany, etc.

For further inquiries and purchase of active power filters or any of our UPS products, please do contact us. We are competent that we are your one stop shopping centre for all your UPS needs.

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