If the power safety margin of the motor equipped with the pump is calculated to be sufficient, but the motor heats up due to overload during actual operation, it indicates that the power consumption of the pump is too high. Cov laj thawj rau cov kev kub zog hluav taws xob yog:
(1) Lub twj tso kua mis ceev yog siab dhau;
(2) Cov kev sib tsoo tshwj xeeb ntawm cov kua nqa ntau tshaj tus qauv tsim qauv;
(3) Lub viscosity ntawm cov kua roj yog siab;
(4) Tus yuam kev loj heev;
(5) Qhov tsis kam ntawm cov raj xa hluav taws xob ntau dua lossis poob qis dua hauv qab cov nqi tau txiav txim siab;
(6) Lub taub hau ntawm lub twj tso kua mis yog qhov tsawg dhau thiab tus nqi txaus siab dhau;
(7) Muaj kev sib txhuam ntawm rotor qhov chaw thiab cov stator seem;
(8) kev coj tus kheej lossis kev puas tsuaj;
(9) Lub tshuab tshuab sib hloov ntau dhau los ntawm lub rooj zaum sib khi;
(10) export txuas rupture;
(11) Cov taub hau taub khoov khoov;
(12) Tsis sib xws thermal expansion ntawm ntau qhov chaw sab hauv lub twj tso kua mis;
(13) lub dynamometer tsis muaj tseeb;
(14) Lub twj tso kua mis ntsuas tsis ua haujlwm.