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Title: Ceramic electrical insulation for electrical coils, transformers, and magnets

Abstract

A high temperature electrical insulation is described, which is suitable for electrical windings for any number of applications. The inventive insulation comprises a cured preceramic polymer resin, which is preferably a polysiloxane resin. A method for insulating electrical windings, which are intended for use in high temperature environments, such as superconductors and the like, advantageously comprises the steps of, first, applying a preceramic polymer layer to a conductor core, to function as an insulation layer, and second, curing the preceramic polymer layer. The conductor core preferably comprises a metallic wire, which may be wound into a coil. In the preferred method, the applying step comprises a step of wrapping the conductor core with a sleeve or tape of glass or ceramic fabric which has been impregnated by a preceramic polymer resin. The inventive insulation system allows conducting coils and magnets to be fabricated using existing processing equipment, and maximizes the mechanical and thermal performance at both elevated and cryogenic temperatures. It also permits co-processing of the wire and the insulation to increase production efficiencies and reduce overall costs, while still remarkably enhancing performance.

Inventors:
 [1];  [2];  [3]
  1. (Longmont, CO)
  2. (Lafayette, CO)
  3. (Broomfield, CO)
Issue Date:
Research Org.:
Composite Technology Development, Inc., Lafayette, CO
OSTI Identifier:
874524
Patent Number(s):
6407339
Assignee:
Composite Technology Development, Inc. (Lafayette, CO) OAK
DOE Contract Number:  
FG03-96ER82147
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ceramic; electrical; insulation; coils; transformers; magnets; temperature; described; windings; applications; inventive; cured; preceramic; polymer; resin; polysiloxane; method; insulating; intended; environments; superconductors; advantageously; steps; applying; layer; conductor; core; function; curing; metallic; wire; wound; coil; step; wrapping; sleeve; tape; glass; fabric; impregnated; allows; conducting; fabricated; existing; processing; equipment; maximizes; mechanical; thermal; performance; elevated; cryogenic; temperatures; permits; co-processing; increase; production; efficiencies; reduce; overall; costs; remarkably; enhancing; preferred method; electrical insulation; electrical coil; /174/

Citation Formats

Rice, John A., Hazelton, Craig S., and Fabian, Paul E. Ceramic electrical insulation for electrical coils, transformers, and magnets. United States: N. p., 2002. Web.
Rice, John A., Hazelton, Craig S., & Fabian, Paul E. Ceramic electrical insulation for electrical coils, transformers, and magnets. United States.
Rice, John A., Hazelton, Craig S., and Fabian, Paul E. Tue . "Ceramic electrical insulation for electrical coils, transformers, and magnets". United States. https://www.osti.gov/servlets/purl/874524.
@article{osti_874524,
title = {Ceramic electrical insulation for electrical coils, transformers, and magnets},
author = {Rice, John A. and Hazelton, Craig S. and Fabian, Paul E.},
abstractNote = {A high temperature electrical insulation is described, which is suitable for electrical windings for any number of applications. The inventive insulation comprises a cured preceramic polymer resin, which is preferably a polysiloxane resin. A method for insulating electrical windings, which are intended for use in high temperature environments, such as superconductors and the like, advantageously comprises the steps of, first, applying a preceramic polymer layer to a conductor core, to function as an insulation layer, and second, curing the preceramic polymer layer. The conductor core preferably comprises a metallic wire, which may be wound into a coil. In the preferred method, the applying step comprises a step of wrapping the conductor core with a sleeve or tape of glass or ceramic fabric which has been impregnated by a preceramic polymer resin. The inventive insulation system allows conducting coils and magnets to be fabricated using existing processing equipment, and maximizes the mechanical and thermal performance at both elevated and cryogenic temperatures. It also permits co-processing of the wire and the insulation to increase production efficiencies and reduce overall costs, while still remarkably enhancing performance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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