Active Dynamic Filter ADF

Active Dynamic Filter ADF

Rongzhi Electric Power is a large-scale Active Dynamic Filter ADF 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 Active Dynamic Filter ADF 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 Active Dynamic Filter ADF Model Instruction


Rongzhi Active Dynamic Filter ADF Parameter (Specification)

Size 400V
50A-450A
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 Active Dynamic Filter ADF Theoretical basis

Active filter compared with passive filter, good governance effect, mainly can filter out many times and high harmonics at the same time, will not cause resonance, but the price is relatively high! The practical application of safety factor is very low, the international common practice is to transformer boost, to ensure reliability, the relevant national departments also require the form of transformer boost and active filter combination, control high voltage harmonics!


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