| Commutator is a high-speed rotating equipment, electric power and the role of the centrifugal force will have some impact on the rotor winding, though has been running at rated parameters, but the weak link is the commutator of the rotor and the rotor windings commutator elevated piece of welding mouth, and are using conventional soldering processes, and inter-chip DC resistance measurement results combined to determine the weld point of the rotor winding and commutator between elevated piece has virtual pine , so that the end of the wire fatigue, increased contact resistance, increased heat, accelerated oxidation of the contact surface, the contact resistance is further increased, further increasing the amount of heat, so that the vicious cycle continues, eventually at a high temperature insulating commutator rotorIt is burning on the ground arcing, which will damage the commutator. |
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Commutator rotor insulation was burning reasons
Source： Time：2015-04-22 14:26:44 views：
Commutator is a high-speed rotating equipment, electric power and the role of the centrifugal force will have some impact on the rotor winding, though has been running at rated parameters, but the weak link is the commutator of the rotor and the rotor windings commutator elevated piece of welding mouth