Power quality solutions for new energy power plants

http://www.micnodrive.com/products/industrail--inverter/

Shenzhen MICNO Electric Co, Ltd. has been a public company of NEEQ in China with stock code 839477, which specializes in R&D, manufacture, sale and service of AC drive/VFD/VSD, Solar pumping inverter and other industrial automation products. We provide many products include 3 phase frequency drive, boost power module, inverter braking resistor, energy feedback, inverter output filter, high frequency power inverter, high voltage soft starter, industrial hmi panels, industrial frequency converter, industrial automation devices,etc.

The upper and lower limit water levels and upper and lower limit alarm water levels are set in the sedimentation tank. Its control process is when the water reaches the limit, the water level detection send signals to PLC, PLC started rising frequency converter and frequency signal output to the frequency converter, when the frequency converter has reached 50 hz if the water level is still at the lower limit position, PLC signal switch of sewage pump 1 # switch to run the power frequency, delay after a period of time by the frequency converter to start the sewage pump 2 #. In contrast, when the water reaches limit position stop sewage pump 1, PLC signal frequency drop, if because of the water pump or other causes water level below the lower or upper limit water level alarm, water level detector send alarm signal to PLC, the PLC output start alarm circuit (alarm lamp and ring), to prompt the operator to check the reason.