KCAPF Active Power Filter

KCAPF is mainly based on the instantaneous reactive power theory of three-phase circuits. According to different compensation objects, it is usually divided into two parallel types: parallel type and series type, which are mainly used to control harmonic control caused by current; series type is mainly used to treat harmonic management caused by voltage. In practice, the practical application of parallel type is mainly parallel type.

Active power filter
Active power filter
Model number Current voltage (k V) Rated current (A) Dimensions (W * D * H, mm)
KCAPF-0.4-100    0.4 100 800*800*2200
KCAPF-0.4-150 150 800*800*2200
KCAPF-0.4-300 300 800*800*2200
KCAPF-0.4-450 450 800*800*2200
KCAPF-0.4-600 600 800*800*2200
KCAPF-0.69-100    0.69 100 800*1000*2200
KCAPF-0.69-200 200 800*1000*2200
KCAPF-0.69-400 400 800*1000*2200
KCAPF-0.69-500 500 800*1000*2200

1. Product overview:
KCAPF is a new power electronic device used to dynamically suppress harmonics and compensate for rea Ctive power. It can compensate for harmonics and reactive power changes in both size and frequency. Its application can overcome the shortcomings of traditional harmonic suppression and reactive power Compensation methods such as LC filters and obtain better compensation than passive filters. It is an ideal harmonic compensation device.

2. Scope of application:
It is suitable for urban bus charging stations, ventilators, air conditioners, water pumps, communication systems, oilfield platform engineering, automobile manufacturing, university cities and gymnasiums, hospital power distribution systems, metallurgy, petrochemical and other occasions with serious harmonic distortion.

3. Working principle;
The basic working principle of KCAPF is that the active power filter detects the load current through the current transformer, extracts the harmonic components in the load current through internal DSP calculation, and then sends it to the internal IGBT through the PWM signal to control the inverter to generate a harmonic current equal to the size of the load harmonic current and in the opposite direction is injected into the power grid to achieve the purpose of filtering.

4. Technical parameter

Voltage level (v) 400 690
Grid voltage (v) 228~456 483~759
Grid frequency (Hz) 45~63 45~63
Whole machine efficiency >97% >98%
Harmonic range 2~50 2~50
Fast response time <100μs <100μs
Full response time <10ms <10ms
Scope of compensation Adjustable from -1 to 1 Adjustable from -1 to 1
Communication interface RS485,Net port RS485,Net port
Communication protocol Master of electricity agreement,Modbus,TCP/IP Master of electricity agreement,Modbus,TCP/IP
Communication interface RS485 CAN RS485 CAN
Monitor and control Support centralized monitoring Support centralized monitoring
Cooling mode Intelligent air cooling Intelligent air cooling
Operating temperature -10~+45 -10~+45

5. Technical characteristics
Comprehensive functions: harmonic compensation function, asymmetric compensation function, reactive power compensation function
High filtering harmonic rate: 2 to 50 harmonic currents can be filtered at the same time, and the filter rate can reach up to 97%.
Advanced technology: continuous and dynamic tracking, fast response time <100μs, full response time < 10ms. The filtering performance is not affected by the impedance of the system, and will not produce parallel resonance and series resonance with the system.
The LCD display is colorful: viewable waveforms, histograms, digital diagrams, etc.


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