Basic Info.
Model NO.
APFM
Installation
Indoor
Housing
Aluminum Zinc Steel
Rated Voltage
208V-800V
Transport Package
Plywood
Specification
0.4kv
Trademark
Sanhe
Origin
China
HS Code
8537209000
Production Capacity
10000PCSYear
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
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 | 50Hz60Hz±5% |
Rated current | 50A/100A/150A |
Electrical wiring | 3-phase 3-wire3-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 |