Accession Number : AD0460596

Title :   HIGH TEMPERATURE ALKALI METAL RESISTANT INSULATION.

Descriptive Note : Final rept.,

Corporate Author : WESTINGHOUSE ELECTRIC CORP LIMA OH AEROSPACE ELECTRICAL DIV

Personal Author(s) : Snavely, W. H.

Report Date : MAR 1965

Pagination or Media Count : 227

Abstract : The experimental work was done to determine the effects of a combined environment on electrical conductors, ceramic insulators, potting compounds, and magnetic materials. The test environment combined 600 C saturated potassium vapor and electrical and fluctuating magnetic fields. The test devices were transformers fabricated from materials that had resistance to the corrosive action of saturated K vapor at elevated temperatures. Materials were exposed to 600 C and 850 C saturated K. Corrosion data were obtained. Materials to fabricate test transformers were selected by evaluating the K corrosion information. Two types of electrical terminal seals resistant to 600 C K vapor were developed. The electrical properties of these terminal seals in saturated K vapor at 600 C were determined. The seals were used to fabricate suitable K vapor test capsules for the test transformers. Transformers were fabricated and electrically tested in 300 and 600 C saturated K vapor. The test data obtained at a given elevated temperature in vacuum or Ar were compared with identical temperature points in saturated K vapor. (Author)

Descriptors :   *ELECTRICAL CONDUCTIVITY, *CORROSION INHIBITION, *POTASSIUM, MATERIALS, COMPATIBILITY, TRANSFORMERS, CORROSIVE GASES, CORROSION, ELECTRICAL INSULATION, CERAMIC MATERIALS, MAGNETIC MATERIALS, EMBEDDING SUBSTANCES, ELECTRIC TERMINALS, METAL SEALS, HERMETIC SEALS, BRAZING, HIGH TEMPERATURE, THERMAL INSULATION, ENCAPSULATION, VAPORS, MAGNETIC FIELDS, ELECTRIC FIELDS.

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE