JP5940180B2 - 消弧用絶縁材料成形体、それを用いたガス遮断器 - Google Patents
消弧用絶縁材料成形体、それを用いたガス遮断器 Download PDFInfo
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- JP5940180B2 JP5940180B2 JP2014560633A JP2014560633A JP5940180B2 JP 5940180 B2 JP5940180 B2 JP 5940180B2 JP 2014560633 A JP2014560633 A JP 2014560633A JP 2014560633 A JP2014560633 A JP 2014560633A JP 5940180 B2 JP5940180 B2 JP 5940180B2
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- 239000012774 insulation material Substances 0.000 title claims description 3
- 239000007789 gas Substances 0.000 claims description 125
- 239000011810 insulating material Substances 0.000 claims description 75
- 229920000642 polymer Polymers 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 38
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 125000004429 atom Chemical group 0.000 claims description 19
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 18
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 17
- 125000001153 fluoro group Chemical group F* 0.000 claims description 11
- 229910052582 BN Inorganic materials 0.000 claims description 10
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 7
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052789 astatine Inorganic materials 0.000 claims description 2
- RYXHOMYVWAEKHL-UHFFFAOYSA-N astatine atom Chemical group [At] RYXHOMYVWAEKHL-UHFFFAOYSA-N 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 description 25
- 239000000872 buffer Substances 0.000 description 23
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- 229910052739 hydrogen Inorganic materials 0.000 description 17
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
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- 239000000203 mixture Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 229960000909 sulfur hexafluoride Drugs 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
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- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
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- 239000004640 Melamine resin Substances 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
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- 150000002431 hydrogen Chemical class 0.000 description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
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- 229910008051 Si-OH Inorganic materials 0.000 description 2
- 229910006358 Si—OH Inorganic materials 0.000 description 2
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 2
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- 239000011737 fluorine Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
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- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
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- 238000002679 ablation Methods 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
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- 239000000440 bentonite Substances 0.000 description 1
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
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- 239000003086 colorant Substances 0.000 description 1
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- 238000013005 condensation curing Methods 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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- 230000001186 cumulative effect Effects 0.000 description 1
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- VBFKOAUPUOAIFJ-UHFFFAOYSA-N fluoroform;hydroiodide Chemical compound I.FC(F)F VBFKOAUPUOAIFJ-UHFFFAOYSA-N 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 229940003953 helium / oxygen Drugs 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002483 hydrogen compounds Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
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- 238000007561 laser diffraction method Methods 0.000 description 1
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- 239000003921 oil Substances 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010702 perfluoropolyether Substances 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- LLLCSBYSPJHDJX-UHFFFAOYSA-M potassium;2-methylprop-2-enoate Chemical compound [K+].CC(=C)C([O-])=O LLLCSBYSPJHDJX-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 230000001172 regenerating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/321—Polymers modified by chemical after-treatment with inorganic compounds
- C08G65/323—Polymers modified by chemical after-treatment with inorganic compounds containing halogens
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/002—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds
- C08G65/005—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens
- C08G65/007—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens containing fluorine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/06—Insulating body insertable between contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/905—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the compression volume being formed by a movable cylinder and a semi-mobile piston
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
- H01H33/78—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor wherein the break is in gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Organic Insulating Materials (AREA)
- Polyethers (AREA)
Description
主鎖に炭素−酸素結合を有し、末端原子の一部または全部が水素原子以外の原子である重合体を含むことを特徴とする消弧用絶縁材料成形体である。
本発明の消弧用絶縁材料成形体は、ガス遮断器において、電流遮断時に開動した電極間(例えば、可動接触子と固定接触子との間)に発生したアークに絶縁性ガスを吹き付けて消弧させるためのものであって、アーク発生部近傍である接触子の接点近傍に配置される。
本実施の形態の消弧用絶縁材料成形体を構成する重合体もフッ素化ポリエーテル系重合体であるが、主鎖にケイ素原子を含んでいる点で実施の形態1とは異なっている。
本実施の形態の消弧用絶縁材料成形体は、実施の形態1および実施の形態2で示した消弧用絶縁材料成形体に加えて、さらに、窒化ホウ素、酸化アルミニウムおよび酸化チタンからなる群から選択される少なくとも1種(耐消耗用充填材)を含む形態である。
図1は、本発明の実施の形態4に係るガス遮断器の一例を示す概略断面図である。図1に示すガス遮断器において、消弧装置1は、第1ブッシング2から伸びる第1導体2aと、第2ブッシング3から伸びる第2導体3aとの間に電気的に接続されており、可動通電接触子11(図2に記載)を駆動する動作機構4は、例えば、バネ機構、油圧機構などによって動作する操作装置5と、リンク6と、絶縁性のロッド7から構成されている。可動通電接触子11は、ロッド7によりリンク6に結合されて、操作装置5により開閉極動作する。
(実施例1〜3、比較例1〜3)
表1に示す各種の重合体を準備した。なお、フッ素化ポリエーテル系重合体として、実施例1では、市販されており一般に入手可能なパーフロロポリエーテルゴム(ShoreA硬度50)を用い、実施例2では、市販されており一般に入手可能なフッ素化ポリエーテルのシリコーン架橋物A(市販の二液型材料の硬化物、ShoreA硬度70、二酸化ケイ素含有)を用いた。実施例3では、フッ素化ポリエーテルのシリコーン架橋物B(市販の二液型材料の硬化物、二酸化ケイ素無し)を用いた。これらの重合体を金型成形後、機械加工することにより所定の消弧用絶縁材料成型体(実施例1〜3および比較例1〜3)を得た。
水素含有率(重合体における構成元素中の水素原子の含有率)の測定には、CHN元素分析を用いる。具体的には、成形体をヘリウム/酸素気流で高温に加熱して燃焼させ、成形体の構成元素の各々を酸化することで、炭素はCO2、水素はH2O、窒素はNOxとなり、さらにこれらを還元銅を含む還元炉内を通過させることで、NOxはN2となる。そして、生成したH2Oを定量することによって、それぞれの成形体における水素含有率を算出する。なお、成形体はフッ素を含んでいるため、データがばらつき易いので、燃焼温度を通常より上げる(たとえば、1150℃で燃焼させる)などの測定条件に十分な注意が必要である。また、測定前には、水分の影響を除くため、減圧乾燥(50℃)2時間を実施した。
まず、成型体が収容されたガス遮断器の密閉チャンバー内にSF6ガスを充填し、定格84kV、通電電流20kA(実効値)および遮断時間10〜15msの条件で接点を開動し、アークを発生させて10回の遮断試験を実施した。
表2に、実施例4〜10および比較例4の消弧用絶縁材料成型体の製造に用いた重合体の種類と、耐消耗用充填材の種類、平均粒径、最大粒径および配合比を示す。これらの材料を用いて、所定の割合で重合体に耐消耗用充填材を配合した組成物を調製し、金型成形後、機械加工することにより所定の消弧用絶縁材料成型体(実施例4〜10、比較例4)を得た。
Claims (14)
- ガス遮断器において、接触子の接点近傍に設置される消弧用絶縁材料成形体であって、
主鎖に炭素−酸素結合を有し、末端原子の一部または全部がフッ素原子、塩素原子、臭素原子、ヨウ素原子およびアスタチン原子の内の少なくとも1種である重合体を含むことを特徴とする消弧用絶縁材料成形体。 - 前記重合体を主たる材料として含む、請求項1に記載の消弧用絶縁材料成形体。
- 前記重合体における構成元素中の水素原子の含有率が2質量%以下である、請求項1または2に記載の消弧用絶縁材料成形体。
- 前記末端原子の一部または全部がフッ素原子である、請求項1〜3のいずれか1項に記載の消弧用絶縁材料成形体。
- 前記重合体はポリエーテル系重合体である、請求項1〜4のいずれか1項に記載の消弧用絶縁材料成形体。
- 前記ポリエーテル系重合体はフッ素化ポリエーテル系重合体である、請求項5に記載の消弧用絶縁材料成形体。
- 前記ポリエーテル系重合体は、ポリエーテルの繰り返し部にベンゼン環を含まない、請求項5または6のいずれか1項に記載の消弧用絶縁材料成形体。
- 前記重合体が前記主鎖にケイ素原子を含む、請求項1〜7のいずれか1項に記載の消弧用絶縁材料成形体。
- 前記重合体がフッ素化ポリエーテルのシリコーン架橋物である、請求項1〜8のいずれか1項に記載の消弧用絶縁材料成形体。
- 二酸化ケイ素をさらに含む、請求項9に記載の消弧用絶縁材料成形体。
- 窒化ホウ素、酸化アルミニウムおよび酸化チタンからなる群から選択される少なくとも1種を充填材として含む、請求項1〜10のいずれか1項に記載の消弧用絶縁材料成形体。
- ガス遮断器において、接触子の接点近傍に設置される消弧用絶縁材料成形体であって、
主鎖に炭素−酸素結合およびケイ素原子を有し、末端原子の一部または全部が水素原子以外の原子である重合体を含むことを特徴とする消弧用絶縁材料成形体。 - 請求項1〜12のいずれか1項に記載の消弧用絶縁材料成形体を電極近傍に備えたガス遮断器。
- 遮断に用いられる絶縁性ガスがSF6ガスである、請求項13に記載のガス遮断器。
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