The load in the pharmaceutical industry is mainly the pumps, air compressors, agitators, fans, centrifuges, ice machines, and purification equipment that are provided by the inverter. The pump load is large and wide, mainly ice water pump, circulating water pump, chilled water pump, deep well submersible pump, sewage pump, vacuum pump, etc. The pump load generally belongs to the square torque load, while the deep well submersible pump and vacuum pump have relatively large loads. . Air compressors mainly supply gas for fermentation tanks. The agitator load is also a relatively common and more widely used load in the pharmaceutical industry, and the power specification is more. The centrifuge load is a large inertial load. Fan load is mainly boiler drum, induced draft fan. Because the load of the pharmaceutical factory is driven by the inverter, the inverter will generate a large number of high-order harmonics during operation, and the factory lighting will use fluorescent lamps, etc., and the fluorescent lamp generates a large number of third-harmonic components when operating at industrial frequency.
Introduction
The active power filter (APF) is mainly composed of controller, isolation switch (circuit breaker), contactor, IGBT, driving circuit, protection system, fuse, connection reactor, DC capacitor, etc. The controller measures phase A, C reactive power(current), produces control signal, drives IGBT on/off and produces harmonic and reactive current same as system harmonic current but in opposite phase to filter system harmonic, reduce reactive power and keep system power factor approximately at 1.
Our APF equipment is module structure,there are two types Wall Mounted and cabient mounted. The Wall Mounted type is preferred to be used in equipment improvement which is very conveninet to install.
The Modular Active Harmonic Filter series are suitable for applications of all types, providing harmonic mitigation, load balancing and step-less reactive power compensation for inductive and capacitor loads.
Main Parameter
Rated voltage: 0.4kV,0.69kV
Frequency: 45Hz ~ 63Hz
Three level topology and high efficiency up to 97%
Filtering capacity: THDi (current distortion rate) < 5%
Response time: less than 15ms
Communication interface: RS485, network port,Wi-Fi