Active Power Filter Module for VFD Harmonic Filtering

• Customization: Available
• Certification: ISO9001, CCC, Type Test
• Protection: Anti-static
• Model NO.: APFM
• Installation: Hanging
• Housing: Aluminum Zinc Steel
• Rated Voltage: 208V-800V
• Transport Package: Plywood
• Specification: 0.4kv
• Trademark: Sanhe
• Origin: China
• HS Code: 8537209000
• Production Capacity: 10000PCS\Year

Product Description

APFM
Series Active Power Filter Modlule
Rated Voltage: 0.4kv
Rated Frequency: 50HZ
Function:Sanhe power APFM series active filter module detect load current through the current transformer,then calculate by the means of the internal DSP, extract the harmonic components of load current, and send PWM signal to the internal IGBT, control inverter to produce a load harmonic current equal in size, in the opposite direction of harmonic current injected into the power grid, to achieve the purpose of filtering.
Application: widely used in industrial and commercial power users.
Installation: indoor

Product feature

Compact and reasonable structure, flexible installation

Advanced control algorithm, software reliability

DSP+FPGA control system adopts vector screening technology

Dynamic filtering of 2 ~ 51 harmonics, but also selective filtering of specified harmonics
Harmonic compensation, reactive power compensation and three-phase unbalance compensation

A variety of capacity modules, any capacity combination parallel, good expansion performance, to meet the needs of different capacity system

Use standard communication port and protocol

Fault alarm and record function, up to 500 alarm records

Complete and effective protection measures, such as over voltage protection, under voltage protection, short circuit protection, inverter bridge reverse protection, over compensation protection

In the process of load change, if there is resonance,APFM will self-judge and exit the system, and alarm at the same time to avoid fault

Technology Specification

Rated voltage	208V-800V
Power net frequency	50Hz\60Hz±5%
Rated current	50A/100A/150A
Electrical wiring	3-phase 3-wire\3-phase 4-wire system
Efficiency	≥97.5%
Filter capacity	THDi<2%
Filter times	2-51
Controller	DSP+FPGA
Full response time	≤5ms

 

Communication port	RS485
Communication protocol	Modbus protocol
Protected level	IP20
Noise	≤60dB
Protected function	AC/DC bus voltage current and temperature
Parallel capacity	Multi-capacity machine, strong expansibility
environment temperature	-20-50ºC
Relative humidity	Maximum 95%, no condensation
Installation elevation	≤2000m, lower capacity at higher altitudes

FAQ

Q: What is APF Working principles ?

A:1.External current transformer(CT)could detect real-time load current .

2.Internal DSP calculates and analyzes the reactive power content of the system.

3.Control PWM to send signal to IGBT to generate reactive power compensation current for power factor compensation.

Q: How to choose the model number?

A: Please specify the APF rated voltage,frequency ,3p3w/3p4w,rated capacity,CT sampling position(grid or load side).

Q:What is the standard packaging?

A: 1*manual(or electronic manual)

1*protection cover(only for wall mounted type,1 module 1 cover)

Q:How to prepare APF/SVG module before installation?

A:1. the standard package is not packed with breaker and current transformer. If need,please advise while ordering.

2.We recommended open-type current transformer for easy installation.

open-type current transformer

3.APF module should be protected by superior breaker. If the breaker is not installed,it is not convenient and protective for debug etc.