Failure in Small DC Motors
Failure in Small DC Motors
(OP)
Dear Friends
Atached you will find a picture of the armature winding of this small motors.
We was repair some DC electric motor of 2.2 KW, this one are working in very severe ambients in compresors, electric cranes and are exposed to high vibration, this motors are working in S4 duty and in at least 90 % are working above rated power value.
In the begguinning we found a failure due to the breakdown of the wires welded in the conmutator,and the welding material loose too due to this today we are ussing tin at 95 % and not 70 %.Today the welding material stop to melt but the wires stilll brokes.
What do you think is happening here ?
Thanks and best regards
Petronila
Atached you will find a picture of the armature winding of this small motors.
We was repair some DC electric motor of 2.2 KW, this one are working in very severe ambients in compresors, electric cranes and are exposed to high vibration, this motors are working in S4 duty and in at least 90 % are working above rated power value.
In the begguinning we found a failure due to the breakdown of the wires welded in the conmutator,and the welding material loose too due to this today we are ussing tin at 95 % and not 70 %.Today the welding material stop to melt but the wires stilll brokes.
What do you think is happening here ?
Thanks and best regards
Petronila





RE: Failure in Small DC Motors
RE: Failure in Small DC Motors
RE: Failure in Small DC Motors
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If it is broken, fix it. If it isn't broken, I'll soon fix that.