... chemical industry, water treatment, petrochemical industry, and on loads of pump, blower, pumping unit, air compressor, ball mill, ... unique measures and methods to reach pressure balancing of di/dt, valve recanalizing and turn-off.Different current intensities ... 12KV(+10%, -15%) 50HZWorking voltageNo more than 110% of the rated voltageApplication motorthree-phase asynchronous motor (squirrel-cage), ...