Manufacturing process for surge arrester module using pre-impregnated composite
AssigneeCooper Technologies Company
InventorsMichael Ramarge, Alan Yerges, David Bailey, Roger Perkins
Life of this patent
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Abstract
An electrical module assembly used in a surge arrester is manufactured by wrapping an electrical module assembly including at least one metal oxide varistor (MOV) disk to which a reinforcing structure including a pre-impregnated epoxy/glass-fiber composite has been applied with shrink film and compacting the wrapped electrical module assembly by heating the shrink film such that the shrink film shrinks and applies a radially compressive force to the electrical module assembly. The wrapped electrical module assembly then is cured at a temperature at which the shrink film no longer applies a compressive force.
Claims32
A method for manufacturing an electrical module assembly, the method comprising:
- providing an electrical module including at least one metal oxide varistor (MOV) disk;
- axially compressing the electrical module;
- heating the electrical module;
- preparing a reinforcing structure for application to the electrical module;
- wrapping the reinforcing structure around the electrical module to produce the electrical module assembly;
- attaching shrink film to the electrical module assembly;
- spiral winding the shrink film around the electrical module assembly;
- securing the wrapped shrink film to the electrical module assembly;
- heating the shrink film such that the shrink film shrinks and applies a radially compressive force to the electrical module assembly;
- and
- curing the reinforcing structure of the electrical module assembly in a manner in which the shrink film does not apply a radially compressive force to the electrical module assembly during the curing.
A method for manufacturing an electrical module assembly, the method comprising:
- providing an electrical module assembly including at least one MOV disk to which a reinforcing structure has been applied;
- wrapping the electrical module assembly with shrink film;
- compacting the wrapped electrical module assembly by heating the shrink film such that the shrink film shrinks and applies a compressive force to the electrical module assembly;
- and
- curing reinforcing structure of the wrapped electrical module assembly at a temperature at which the shrink film no longer applies a compressive force.
A method for manufacturing an electrical module assembly, the method comprising:
- providing an electrical module assembly including at least one MOV disk to which a reinforcing structure has been applied;
- attaching tape to an end of the electrical module assembly;
- spiral winding the tape over the surface of the electrical module assembly while maintaining a substantially constant tension on the tape;
- securing the tape at an opposite end of the electrical module assembly;
- heating the electrical module assembly while the tension on the tape compresses the electrical module assembly;
- and
- curing the wrapped electrical module assembly at a temperature at which the tape does not apply a compressive force to the electrical module assembly.
Dependencies are inferred from the claim text.