The purpose of the transformation program is 70. Two-stage speed regulation is implemented by the inverter pair. When the coiling unit is in normal operation, the motor runs at normal speed, providing negative pressure to ensure dust removal; when the unit is out of service, the motor runs at low speed.
80 electrical principles. Using the multi-speed speed control function of the inverter, it is set to two speeds of normal speed and low speed, and the normal running and stop signal of the unit is connected to the inverter control port as the speed control signal. When the unit is in normal operation, the dust removal fan runs at normal speed. When it is out of service, it runs at low speed to realize the fixed frequency control mode of the sub-band, and the high and low speed automatic conversion. See 7. for controlling the electrical principle.
After the effect transformation, the equipment runs stably and reliably, and the effect is good.
The daily power consumption before the 70 transformation was about 77,0;23.
After the 80 transformation, when the unit is in normal operation (dedusting is required), the daily power consumption is 80123; in the outage state (no dust removal), the daily power consumption; 023, the total power consumption is 1023.
Day saving; 808723, saving 0 yuan per kilowatt hour, saving 17 yuan in the whole year. Each inverter is in yuan, plus other spare parts cost 8 yuan, 7 months to recover the cost.
Before the transformation, the measured fan noise is 8AB (basic noise is 8AB); after the transformation, the AB is measured under the dust removal state, and the actual measurement is not required when the dust is removed, AB.
In addition, since the dust removal fan runs at a lower rated speed for a long time, the motor and the fan bearing are not easily damaged, and the life is prolonged; the motor starting process is smooth, and the impact of the starting current on the power grid and the mechanical load is reduced.
The frequency conversion technology is used for the dust removal fan of the coiling unit, which reduces the noise of the unit and has remarkable energy saving effect.
Drone Accessory,Flight Controller,Universal Drone Controller,Agriculture Drone Sprayer Parts
Dongying Tianqi Technology Co., Ltd. , https://www.uav5.com