|
| Propositions | Events |
|
| p1 | Overload |
| p2 | Rotor winding short circuit |
| p3 | The resistance value of a phase winding decreases |
| p4 | Fuse melt fault |
| p5 | Damage of shaft seal ring structure |
| p6 | Oil sealing material overheating |
| p7 | Excessive roughness value of the seal surface shaft |
| p8 | Excessive temperature |
| p9 | Mechanical fault of the rotor winding |
| p10 | The motor centerline is inconsistent with the pump one |
| p11 | Fault of the bearing locking device |
| p12 | Rotor core deformation |
| p13 | Fracture or shedding of magnetic slot wedges |
| p14 | Dewelding at the joint of the winding and lead wire |
| p15 | Connection box joint loosened |
| p16 | Poor contact of the power control loop switch |
| p17 | Decrease in rotational speed |
| p18 | Excessive current in a phase |
| p19 | Excessive excitation current |
| p20 | A phase voltage loss |
| p21 | Foreign matter enters the rotary shaft clearance |
| p22 | The motor oil intake |
| p23 | Oxidation and decomposition of bearing lubricating oil |
| p24 | Bearing expansion by heat |
| p25 | Bearing generates additional load |
| p26 | Rotor axial moves |
| p27 | The iron core of the stator and rotor has an air gap |
| p28 | Rotor winding open circuit |
| p29 | Contact resistance value increases |
| p30 | Motor overheating |
| p31 | Phase-absent operation |
| p32 | Abnormal rotation or the rotor is stuck |
| p33 | Insulation aging |
| p34 | Reduction of lubricant oil |
| p35 | Friction occurs between the crankshaft ring and shaft hole |
| p36 | Excessive vibration of the motor in operation |
| p37 | Excessive bearing noise |
| p38 | Motor sweeping |
| p39 | Three-phase current of the stator increases |
| p40 | Increased pressure drop |
| p41 | Three-phase current asymmetry |
| p42 | Excessive wear of the bearing |
| p43 | Irregular impact load |
| p44 | Abnormal noise |
| p45 | Rotor rotation is weak or the rotor does not turn and hum |
| p46 | Insulation winding burned down |
| p47 | Motor axle holder |
| p48 | Rotor stuck or stopped rotating |
| P49 | The motor appears local high heat |
| p50 | The motor cannot work |
| — | — |
|
