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Slot insulation is the common name for shielding material used for the rotor inside a power generator. The slot insulation process for electric motors provides a barrier between the copper wirings and the steel lamination for all stator, armature and rotor products. This shielding material separates the rotor's electrically conductive winding from its body.
Temperature ratings
Due to their operating environment, slot insulation must be capable of withstanding high temperatures. In the 1970s, slot insulation materials often had a Class F temperature rating (an operational range up to 155 °C). Today, there are commercially available slot insulation materials with a Class H temperature rating (an operational range up to 180 °C) Its composite of laminate materials, consisting of epoxy, aramid, and dielectric film, create its insulating properties.
Notes
- Gerome Technologies U Slot Insulation
- "Slot insulation machines".
- Payne, B. (2010) The Unsung Hero of Power Generation? The Power Generation Blog.
- Gibney, J. GE Generators, An Overview. Archived 2011-01-02 at the Wayback Machine
- PCT. Generator Rotor Slot Insulation.
- Power and Composite Structures.
References
- Payne, B. (2010) The Unsung Hero of Power Generation? The Power Generation Blog.
- Gerome Technologies Inc. Gerome Technologies U Slot Insulation
- Gibney, J. GE Generators, An Overview.
- PCT. Generator Rotor Slot Insulation.
External links