Harmonic filter 2 ~ 62 times, but according to the need to set filter harmonic time section and filter harmonic target value.
Built-in reactive compensation function, can simultaneously harmonic filter and reactive power compensation, in the case of the capacity of active power filter must be optional harmonic filter or reactive compensation preference.
Active power filter in the filter can avoid no merits to fill at the same time, the active power filter can filter harmonic only and does not produce reactive power, completely avoid had no merit.
Active power filter has the complete protection device, including overload, over current, short circuit, etc. And have system self-diagnosis function.
With a soft start control circuit, avoid too much into the current moment, limit the current between the rated range.
When the system load harmonic content is greater than the filter compensation ability, can according to the capacity of ontology output rated current of active power filter, continue to be valid filter, not overloaded.
Active power filter has a liquid crystal display and operation keys of the man-machine interface, can be work mode setting (compensate harmonic and reactive power harmonic model etc) and parameter Settings (CT changes than setting, boot mode setting, weaver capacity Settings and display Settings, etc.), harmonic compensation Settings (successive compensation mode or full compensation mode), information view, such as operation, can display voltage and current of each phase before and after the operation condition, compensation information, every harmonic information, measurement data, fault alarm, etc.
The output of active power filter filter USES the LCL structure connected to the electricity grid's own high frequency carrier is not back to the grid, other equipment in the power distribution system without interference.