Quality Motor Rebuilding

DC Motors
AC Motors

DC Motors:
Direct Current (DC) motors are found in multiple industrial applications where high torque and variable speed are required. Darby Electric has the written procedures, trained technicians, instruments and machines to perform a total disassembly and analysis and completely rebuild all sizes of DC motors.

TIG Welded Connections
Tungsten Inert Gas (TIG) welding is used to connect the armature coil leads to the commutator riser. This method of attaching copper leads to copper commutator risers produces a high strength, low resistance joint free of contaminates. This assures electrical, mechanical and thermal life.

 

Shaft Currents
The primary cause of damaging circulating currents in DC Motors is due to the loss of interlaminer insulation in the armature laminations. All DC armatures should be checked for damaged iron during disassembly and analysis. Assembled motors can be checked for shaft currents with a Rogowksi coil.

 

DC Motor Cutaway - click here for larger image