Power Quality Filter PQF

Power Quality Filter PQF

Rongzhi Electric Power is a large-scale Power Quality Filter PQF manufacturer and supplier in China. We have been specialized in High voltage equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We look forward to becoming your long-term partner in China.

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Product Description

Rongzhi Power Quality Filter PQF Introduction

Active power filter (APF: Active power filter (Active power filter) is a new type of power electronic device used for dynamic suppression of harmonics and compensation of reactive power. It can quickly track and compensate harmonics of different sizes and frequencies. The reason why it is called active is that compared with passive LC filter, it can only passively absorb harmonics of fixed frequency and size. APF can control and actively output the size, frequency and phase of current by sampling load current and separating each harmonic and reactive power, and quickly respond to offset the corresponding current in the load, realizing dynamic tracking compensation, and can complement both harmonic and reactive power and unbalance.

Rongzhi Power Quality Filter PQF Model Instruction

Rongzhi Power Quality Filter PQF Parameter (Specification)

Size 400V
Rated input line voltage 380V(-40%~+20%)
Power frequency 50/60Hz(Range45Hz~62Hz)
Number of Parallelable unlimited
overall efficiency ≥97%
Power network structure Three phase three wire four phase four 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 <100us
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
LCD multi-function touch color screen
Protection function Protection of overvoltage .short circuit, inverter reverse and over compensation
Fault Alarm Yes
Environmental requirement
Altitude ≤ 1500mm,Beween 1500 and 4000m, according to GB/T3859-2, every 100m increase, the power is reduced by 1%
Operating temperaturel -10℃~+40℃
Relative humidity 5%~95%,without condensation
Protection Grade Other IP levels can be customized

Rongzhi Power Quality Filter PQF Technological advantage

1) Greening

The efficiency reaches 97.2%, and the annual energy saving is about 6, 500kwh compared with the active power filter with 95% efficiency

More efficient topology enhanced control algorithm

Thermal design and structural optimization based on accurate models

1) Miniaturization

The volume is only 1/6 of that of similar mainstream brands, occupying less space.

Live to adapt to different working conditions of installation innovation, wall mounted or rack mounted using less raw materials, protect the environment

1) Intelligence

Compensation specified number of harmonic adjustable inductive, capacitive reactive power compensation compensation system unbalance load automatic detection, suppression system resonance monitoring system

2) Modularity

N+1 redundancy, significantly improve system reliability pipelined production, better quality assurance reduce the system single fault point flexible parallel, adapt to different working conditions

3) Functional features

At the same time, the response time is less than 300μs by filtering out 2~50 harmonics or selecting any number of harmonics within 2~50

Adopt 3DSP+CPLD full digital control mode and international famous brand high-speed IGBT, closed-loop control, accurately filter harmonics

4). Use four-phase line technology to eliminate neutral line current

Automatic elimination of resonance, not affected by the grid impedance and system impedance changes with harmonic compensation; Compensating harmonic and reactive power at the same time; At the same time compensate harmonic, reactive power and negative load three phase current unbalance three modes of operation

5) Electronic overload protection

Inverter control has the machine fast FPGA, power digital signal processing function

Modular design, easy to expand multi-machine parallel centralized monitoring function remote network monitoring function

Easy maintenance, in line with the requirements of the working environment, non-machine failure without maintenance

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