| 摘要 |
FIELD: engines and pumps.SUBSTANCE: set of invention relates to control systems fro borehole pump systems. Claimed system comprises the borehole pump assembly with one or more impeller stages and borehole motor assembly to drive the latter. Claimed pump assembly comprises the motor housing, encased motor to drive the pump assembly and control module secured at the motor housing to control there over. Said control module is electrically connected with supply line and comprises the controller and frequency-controlled drive actuated by the controller. Said controller controls the frequency-controlled drive to actuate the motor and to maintain a constant pressure at the pump outlet.EFFECT: lower costs, simplified assembly, simplified design.30 cl, 5 dwg |
