MV Active Power Filter APF SVG by Wzonpa, a leading China manufacturer, delivers real-time harmonic suppression, reactive power compensation, and superior power quality for modern electrical networks worldwide.
Wzonpa factory’s MV Active Power Filter APF SVG is designed to dynamically monitor, analyze, and compensate harmonic distortion in real time, ensuring stable and efficient grid operation. By integrating DSP intelligent control and IGBT inverter technology, MV Active Power Filter APF SVG delivers precise current injection to cancel unwanted harmonics and improve system efficiency.
Working Principle
The MV Active Power Filter APF SVG uses an external CT to detect load current in real time. Through high-speed DSP computation, harmonic components are extracted and an inverse compensation current is generated. The inverter injects this current back into the grid, achieving instant harmonic elimination and power factor correction.
Core Advantages
High efficiency ≥97%, reducing energy loss significantly
Fast response <10ms ensures real-time correction
Unlimited parallel operation for flexible system expansion
Multi-function compensation: harmonics, reactive power, and imbalance
Intelligent air cooling with low noise <65dB
Advanced protection including overvoltage, short circuit, and inverter fault
MV Active Power Filter APF SVG ensures stable performance even under complex load conditions.
Applications
MV Active Power Filter APF SVG is widely applied in:
Industrial manufacturing plants with nonlinear loads
Renewable energy systems such as wind and solar farms
Data centers requiring stable voltage quality
Metallurgy, mining, and petrochemical industries
Large commercial buildings and transportation hubs
Maintenance & Operation Notes
Regular inspection of cooling systems and CT connections ensures long-term stability. Dust control, firmware monitoring, and periodic parameter calibration help maintain optimal performance of MV Active Power Filter APF SVG under continuous operation.
Competitive Advantage
Compared with traditional passive filters, MV Active Power Filter APF SVG provides adaptive compensation rather than fixed filtering. It responds dynamically to load changes, avoids resonance risk, supports multi-harmonic suppression (>97%), and delivers higher precision and scalability, making it a more reliable long-term investment.
Main technical parameters
Size
400V
50A-450A
Rated input line voltage
380V(-40%~+20%)
Power frequency
50/60Hz(Range
45Hz~62Hz)
Number of Parallelable
unlimited
Overall efficiency
≥97%
Power network structure
Three
phase three wire four phasefour wire
Current transformer
150/5~10000/5
Circuit topology
Three
level
Performance index
Harmonic compensation
support
Reactive compensation
support
Unbalance compensation
support
Harmonic range
>97%
Fast response time
<100μs
Total reponse time
<10ms
Target power factor
Capacitive
sensibility is continuously adjustable
Switch frequency
10kHz
Cooling Type
Intelligent
air cooling
Noise label
<65dB
Communication interface
RS485,
CAN, network interface
Communication agreement
General
electric protocol, Modbus protocol
Module dis la interface
Protection function
LCD
multi-function touch color screen
Protection of overvoltage,short circuit,
inverter reverse and over compensation
Fault Alarm
Yes
Environmental
requirement
Altitude
≤1500mm,
Between 1500 and 4000m, according to GB/T3859-2, every 100m increase, the
power is reduced by 1
For inquiries about switchgear, MV soft starter, surge protective device or price list, please leave your email to us and we will be in touch within 24 hours.
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