Why cleaning of slots done before winding replaced

This process:

1. Ensures Proper Insulation: Removes old insulation residue, dirt, and contaminants that could compromise the dielectric strength of the new insulation, preventing potential short circuits.
2. Optimizes Heat Dissipation: Clears any debris or blockages that might impede the transfer of heat from the new windings to the stator core, preventing overheating and premature winding failure.
3. Facilitates Secure Winding Fit: Provides a clean, smooth surface for the new windings, allowing them to be inserted without damage and ensuring a tight, stable fit that reduces vibration and abrasion.
4. Allows for Core Inspection: Enables a thorough inspection of the stator core for any damage (e.g., lamination shorts, burrs) that needs to be addressed before the new windings are installed.