Claims
- 1. A gas insulated switchgear comprising:
- a container which is filled with an insulating gas;
- a conductor disposed within said container; and
- an insulator for supporting said conductor in said container,
- wherein said insulator includes an organic substance base and an inorganic material filler including an aluminum fluoride added to said organic substance base, said inorganic material filler having a mean diameter of 15 .mu.m or less, said insulator having a smooth outer peripheral surface, an arithmetical mean deviation from a mean line of a profile of said smooth surface being 15 .mu.m or less.
- 2. A gas insulated switchgear according to claim 1, wherein said filler is atomised.
- 3. A gas insulated switchgear according to claim 1, wherein said inorganic material includes a mixture of an aluminium fluoride and an alumina.
- 4. A gas insulated switchgear according to claim 1, wherein said insulator includes a coating layer for providing the smooth outer peripheral surface.
- 5. A gas insulated switchgear according to claim 4, wherein said coating layer is made of epoxy resin.
- 6. A gas insulated switchgear according to claim 1, said insulator having a dielectric strength at an outer periphery thereof equal or greater than that of said insulating gas, and a heat transfer coefficient from said conductor to said insulator being greater than that from said conductor to said insulating gas.
- 7. A gas insulated switchgear according to claim 6, wherein said inorganic material filler has a dielectric constant less than 6.5 and a heat transfer coefficient greater than 30 W/m.multidot..degree. C.
- 8. A gas insulated switchgear according to claim 1, wherein said organic substance base is made of a thermosetting resin.
- 9. A gas insulated switchgear according to claim 8, wherein said thermosetting resin is an epoxy resin.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-301542 |
Nov 1991 |
JPX |
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Parent Case Info
This application is a Continuation of application Ser. No. 07/978,342, filed Nov. 18, 1992, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0066298 |
Dec 1982 |
EPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
978342 |
Nov 1992 |
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