Insulating molded body and gas circuit breaker
AssigneeMitsubishi Electric Corporation
InventorsShuichi Hiza, Takashi Kawana, Fumihiko Hosokoshi, Motohiro Sato, Kenji Mimura
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Abstract
An insulating molded body to be used for an arc extinguishing device of a gas circuit breaker is provided. The insulating molded body includes a fluororesin mixture which contains a fluororesin and an oxygen generator configured to generate oxygen through thermal decomposition at 450° C. or more and 1,150° C. or less with an arc generated when a conduction current is interrupted. The oxygen generator is dispersed in the fluororesin. Also provided is a gas circuit breaker including an insulating nozzle formed of the insulating molded body.
Claims6
An insulating nozzle including an insulating molded body to be used for an arc extinguishing device of a gas circuit breaker,
- the insulating nozzle comprising a fluororesin mixture which contains a fluororesin and an oxygen generator configured to generate oxygen through thermal decomposition at 450° C. or more and 1,150° C. or less with an arc generated when a conduction current is interrupted, and in which the oxygen generator is dispersed in the fluororesin,
- wherein the oxygen generator is dispersed in an entirety of the insulating molded body,
- wherein the oxygen generator is an inorganic oxide, and
- wherein the inorganic oxide is at least any one of manganese dioxide, or cobalt (II, III) oxide.
An insulating nozzle including an insulating molded body to be used for an arc extinguishing device of a gas circuit breaker,
- the insulating nozzle comprising a fluororesin mixture which contains a fluororesin and an oxygen generator configured to generate oxygen through thermal decomposition at 450° C. or more and 1,150° C. or less with an arc generated when a conduction current is interrupted, and in which the oxygen generator is dispersed in the fluororesin,
- wherein the oxygen generator is dispersed in an entirety of the insulating molded body,
- wherein the oxygen generator is an inorganic peroxide,
- wherein the inorganic peroxide is at least any one of sodium peroxide, or potassium peroxide.
A gas circuit breaker comprising:
- an insulating nozzle including an insulating molded body to be used for an arc extinguishing device,
- the insulating nozzle including a fluororesin mixture which contains a fluororesin and an oxygen generator configured to generate oxygen through thermal decomposition at 450° C. or more and 1,150° C. or less with an arc generated when a conduction current is interrupted, and in which the oxygen generator is dispersed in the fluororesin,
- wherein the oxygen generator is dispersed in an entirety of the insulating molded body,
- wherein the arc extinguishing device is filled with an insulating gas,
- wherein the insulating gas is sulfur hexafluroride,
- wherein the oxygen generator is an inorganic oxide, and
- wherein the inorganic oxide is at least any one of manganese dioxide, or cobalt (II,III) oxide.
Dependencies are inferred from the claim text.