Analysis of Reformation of High Voltage Frequency Converter

(1) Excellent soft start/stop function of the high voltage frequency converter (can be started at zero speed). The maximum current during start-up is less than the rated current, which greatly reduces the impact of the start-up inrush current on the motor grid and effectively reduces the motor failure. It greatly prolongs the overhaul cycle of the motor and the service life, and can also effectively avoid the adverse impact of the impact load on the power grid;

(2) After the frequency conversion transformation, the original damper is fully open, greatly reducing its wear, prolonging the service life of the damper, and reducing maintenance and repair costs;

(3) After the frequency conversion transformation, the original hydraulic coupling is cancelled, saving the maintenance cost of the fluid coupling;

(4) The unique smooth regulation of the high-voltage inverter reduces the mechanical wear of the fan and the motor, reduces the temperature of the bearing and the bearing bush, effectively reduces the maintenance cost and prolongs the service life of the equipment.

(5) to facilitate the realization of dust control system automation. The air volume of the dust removal system often needs to be changed according to the requirements of the process. In the past, when the baffle adjustment was used, it was often difficult to precisely control the air volume due to the wear of the actuator and the change in the valve characteristics. The frequency conversion speed control method always maintains high-precision adjustment (0.1 to 0.01 Hz), which provides superior conditions for the automation of the dust removal control system.

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