CHH100 high-voltage frequency inverter control system adopts the DSP + FPGA digital processing technologies, so its control accuracy and response speed are improved significantly; Its output side uses the phase-shifting multiple pulse width modulation (PWM) technology, it has an extremely low harmonic content while there is no output filter. The touch panel is friendly and convenient for operating. It has been extensively used in multiple industries like electric power, metallurgy, mines, cement and petrochemical industry, and well accepted by customers.

Technical Features
1. Units feature hot galvanized board design delivering extremely high corrosion resistance;
2. Tracking capacity by ultra-low frequency rotational speed to ensure fast restart in case of power failure;
3. Unique synchronous interference-free switching to enable interference-free and automatic switching between industrial frequency and inverters;
4. Units featuring dual protection bypass technology with a higher level of system reliability;
5. Resistance to voltage fluctuations within a wide range;
6. 20 protective functions and a professionally specialized high-resistance EMC circuit design.

Applications
1. Thermal power plants: Boiler induceddraft fan, primary fans for boilers, condensation pumps, and water-feed pumps etc.;
2. Mines: Primary exhaust fans, mine ventilator machines, air compressors, conveyor, etc.;
3. Metallurgy: Dedusting exhaust fans etc.;
4. Petroleum and petrochemical: Main pipe pumps, recycling pumps, and water injection pumps etc.;
5. Chemical industry: Air compressors etc.;
6. Building material: High temperature fans, exhaust fans at the front and end of kilns, and raw feed mills etc.;
7. Utilities: Sewage pumps and send oxygen blowers etc.;
8. Others: Fans and pumps in the pharmaceutical industries, paper making industries, and so on.