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Propositions | Events |
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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 |
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