Slot insulation
 | This article may be confusing or unclear to readers. (March 2010) |
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.<ref>"Slot insulation machines".</ref> This shielding material separates the rotor's electrically conductive winding from its body.<ref>Payne, B. (2010) The Unsung Hero of Power Generation? The Power Generation Blog.</ref>
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).<ref>Gibney, J. GE Generators, An Overview. Archived 2011-01-02 at the Wayback Machine</ref> Today, there are commercially available slot insulation materials with a Class H temperature rating (an operational range up to 180 °C)<ref>PCT. Generator Rotor Slot Insulation.</ref> Its composite of laminate materials, consisting of epoxy, aramid, and dielectric film, create its insulating properties.<ref>Power and Composite Structures.</ref>
Notes
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.
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