There are issues about options 1 pump impeller and bearings inside make the temperature of the high pump. The electricity is high as well. VSD systems ordered all work stopped.
The first pump has a problem with the rotor and the bearing inner temperature of the gas is high. As a result, high-voltage systems such as VSD is ordered to stop working altogether.
Pump body 1 had problems with the rotor and bearings inside the temperature of the pump is high. The current system is high as well. VSD ordered to stop work.