Controlling deep-well pump - by employing micro-computer to record effect take-off pump motor, recording being carried out with closed valve in pump outlet conduit.

摘要

The effect take-off is recorded with the valve (11) in the pump outlet for a given pump medium closed ahead of the pump no-load effect. From this, the computer (1) can calculate the lower permissible limit value for the pump effect take-off during operation with this pump medium. In this way, the pump slide bearings can be protected against damage from dry running in an easier and more secure manner with pumping of media with different viscosity and specific gravity.