CA1165107A - Electrical device containing a halogenated dielectric fluid - Google Patents
Electrical device containing a halogenated dielectric fluidInfo
- Publication number
- CA1165107A CA1165107A CA000376163A CA376163A CA1165107A CA 1165107 A CA1165107 A CA 1165107A CA 000376163 A CA000376163 A CA 000376163A CA 376163 A CA376163 A CA 376163A CA 1165107 A CA1165107 A CA 1165107A
- Authority
- CA
- Canada
- Prior art keywords
- percent
- perchloroethylene
- dielectric fluid
- tertiary amyl
- amyl phenol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 45
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229950011008 tetrachloroethylene Drugs 0.000 claims abstract description 44
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical class CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 11
- NRZWYNLTFLDQQX-UHFFFAOYSA-N p-tert-Amylphenol Chemical compound CCC(C)(C)C1=CC=C(O)C=C1 NRZWYNLTFLDQQX-UHFFFAOYSA-N 0.000 claims description 22
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical compound CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims 6
- MEEKGULDSDXFCN-UHFFFAOYSA-N 2-pentylphenol Chemical group CCCCCC1=CC=CC=C1O MEEKGULDSDXFCN-UHFFFAOYSA-N 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- 239000003963 antioxidant agent Substances 0.000 abstract description 4
- 230000003078 antioxidant effect Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 abstract description 3
- 239000003381 stabilizer Substances 0.000 description 9
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 8
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000012808 vapor phase Substances 0.000 description 4
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- 235000006708 antioxidants Nutrition 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007033 dehydrochlorination reaction Methods 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- -1 amyl phenol Chemical compound 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- BNIXVQGCZULYKV-UHFFFAOYSA-N pentachloroethane Chemical compound ClC(Cl)C(Cl)(Cl)Cl BNIXVQGCZULYKV-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- MGSRCZKZVOBKFT-UHFFFAOYSA-N thymol Chemical compound CC(C)C1=CC=C(C)C=C1O MGSRCZKZVOBKFT-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- MIBMJGBPJCCPRE-UHFFFAOYSA-N 1,1,2,2-tetrakis(chloranyl)ethene Chemical compound ClC(Cl)=C(Cl)Cl.ClC(Cl)=C(Cl)Cl MIBMJGBPJCCPRE-UHFFFAOYSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- PHEPAUSSNBXGQO-UHFFFAOYSA-N 2,2,3,3-tetrachlorooxirane Chemical compound ClC1(Cl)OC1(Cl)Cl PHEPAUSSNBXGQO-UHFFFAOYSA-N 0.000 description 1
- FXNDIJDIPNCZQJ-UHFFFAOYSA-N 2,4,4-trimethylpent-1-ene Chemical group CC(=C)CC(C)(C)C FXNDIJDIPNCZQJ-UHFFFAOYSA-N 0.000 description 1
- NQIBQILAMKZKFE-UHFFFAOYSA-N 2-(5-bromo-2-fluorophenyl)-3-fluoropyridine Chemical compound FC1=CC=C(Br)C=C1C1=NC=CC=C1F NQIBQILAMKZKFE-UHFFFAOYSA-N 0.000 description 1
- 125000001340 2-chloroethyl group Chemical class [H]C([H])(Cl)C([H])([H])* 0.000 description 1
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- KHODTKVOSMPIOY-UHFFFAOYSA-N 4-(2-methylbutan-2-yl)phenol pentaphene Chemical compound C(C)(C)(CC)C1=CC=C(C=C1)O.C1=CC=CC2=CC3=CC=C4C=C5C=CC=CC5=CC4=C3C=C12 KHODTKVOSMPIOY-UHFFFAOYSA-N 0.000 description 1
- WSYVVXHNGMBHFS-UHFFFAOYSA-N 7-[3-[(4-boronophenoxy)methyl]-1,5-dimethylpyrazolidin-4-yl]-3-(3-naphthalen-1-yloxypropyl)-2,3-dihydro-1H-indole-2-carboxylic acid Chemical compound CC1C(C(COc2ccc(cc2)B(O)O)NN1C)c1cccc2C(CCCOc3cccc4ccccc34)C(Nc12)C(O)=O WSYVVXHNGMBHFS-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- 229910017974 NH40H Inorganic materials 0.000 description 1
- 239000005844 Thymol Substances 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- GKIPXFAANLTWBM-UHFFFAOYSA-N epibromohydrin Chemical compound BrCC1CO1 GKIPXFAANLTWBM-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- SHMGVQVSZPVFOT-UHFFFAOYSA-N n-(5-cyclohexyl-2-methoxyphenyl)-4-methyl-3-(3-quinolin-4-ylpyridin-2-yl)oxybenzamide Chemical compound C1=C(NC(=O)C=2C=C(OC=3C(=CC=CN=3)C=3C4=CC=CC=C4N=CC=3)C(C)=CC=2)C(OC)=CC=C1C1CCCCC1 SHMGVQVSZPVFOT-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000003071 polychlorinated biphenyls Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229960000790 thymol Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/321—Insulating of coils, windings, or parts thereof using a fluid for insulating purposes only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
- H01B3/24—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils containing halogen in the molecules, e.g. halogenated oils
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Organic Insulating Materials (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Lubricants (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/155,070 US4293433A (en) | 1980-06-02 | 1980-06-02 | Perchloroethylene dielectric fluid containing pyrrole and phenol |
| US155,070 | 1980-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1165107A true CA1165107A (en) | 1984-04-10 |
Family
ID=22554013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000376163A Expired CA1165107A (en) | 1980-06-02 | 1981-04-24 | Electrical device containing a halogenated dielectric fluid |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4293433A (https=) |
| EP (1) | EP0041220B2 (https=) |
| JP (1) | JPS5721011A (https=) |
| AT (1) | ATE13472T1 (https=) |
| CA (1) | CA1165107A (https=) |
| DE (1) | DE3170583D1 (https=) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124253B (en) * | 1982-07-02 | 1985-02-13 | Electricity Council | Dielectric fluids |
| IN157665B (https=) * | 1982-08-31 | 1986-05-17 | Westinghouse Electric Corp | |
| US4424147A (en) * | 1982-08-31 | 1984-01-03 | Westinghouse Electric Corp. | Stabilization of perchloroethylene dielectric fluids |
| US4459637A (en) * | 1983-05-31 | 1984-07-10 | Emhart Industries, Inc. | Dielectric fluid for a capacitor |
| US4913178A (en) * | 1984-07-18 | 1990-04-03 | Quadrex Hps Inc. | Process and apparatus for removing PCB's from electrical apparatus |
| US4814021A (en) * | 1986-08-01 | 1989-03-21 | Ensr Corporation | Apparatus and method for reclassifying electrical apparatus contaminated with PCB |
| US4697043A (en) * | 1986-10-01 | 1987-09-29 | Occidental Electrochemical Corporation | Perchloroethylene dielectric fluid containing aliphatic hydrocarbons |
| JPH0672281B2 (ja) * | 1988-09-14 | 1994-09-14 | 住友金属工業株式会社 | 耐騒音特性に優れたコンプレッサーケース用熱延鋼板 |
| US5266230A (en) * | 1989-04-26 | 1993-11-30 | Tonen Corporation | Electroviscous fluid containing antioxidant and/or corrosion inhibitor |
| BR0000663B1 (pt) * | 2000-02-25 | 2010-11-30 | formulação lìquida para formar um isolante elétrico ou um antioxidante ou um desengraxante. |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1966901A (en) * | 1930-12-19 | 1934-07-17 | Schweitzer & Conrad Inc | Arc extinguishing liquid for circuit interrupters and the like |
| DE764436C (de) * | 1933-11-29 | 1953-04-27 | Aeg | Elektrischer Isolierstoff |
| US2019338A (en) * | 1934-01-16 | 1935-10-29 | Gen Electric | Dielectric composition |
| DE704180C (de) * | 1935-12-05 | 1941-03-25 | Siemens Schuckertwerke Akt Ges | Isoliermittel fuer elektrotechnische Zwecke |
| DE710583C (de) * | 1935-12-05 | 1941-09-17 | Du Pont | Dielektrische Fluessigkeiten |
| DE705701C (de) * | 1936-07-01 | 1941-05-07 | Aeg | Fluessiger elektrischer Isolierstoff |
| US2140784A (en) * | 1936-11-13 | 1938-12-20 | Dow Chemical Co | Dielectric compositions |
| US2155723A (en) * | 1937-03-08 | 1939-04-25 | Du Pont | Stabilization of trichlorethylene |
| DE704179C (de) * | 1937-12-30 | 1941-03-25 | Consortium Elektrochem Ind | Isolierfluessigkeit fuer elektrische Apparate |
| US2492048A (en) * | 1945-08-24 | 1949-12-20 | Du Pont | Stabilization of trichloroethylene and tetrachloroethylene |
| GB765522A (en) | 1954-02-16 | 1957-01-09 | Diamond Alkali Co | Improvements in or relating to the stabilization of chlorohydrocarbons |
| US2911449A (en) * | 1956-02-08 | 1959-11-03 | Air Reduction | Stabilization of chlorinated hydrocarbons with a synergistic combination of a tertiary acetylenic monohydric alcohol and certain phenolic compounds |
| US2958712A (en) * | 1958-03-06 | 1960-11-01 | Du Pont | Stabilization of chlorinated hydrocarbons |
| US2917555A (en) * | 1958-08-01 | 1959-12-15 | Dow Chemical Co | Prevention of decomposition of halogenated hydrocarbon solvents |
| NL103966C (https=) * | 1960-11-14 | |||
| DE1275531B (de) * | 1965-12-10 | 1968-08-22 | Wacker Chemie Gmbh | Stabilisierung von Dichloraethylen, Trichloraethylen oder Perchloraethylen |
| GB1153939A (en) * | 1966-12-07 | 1969-06-04 | Matsushita Electric Industrial Co Ltd | Insulating Impregnation Composition For Electric Equipment |
| DE1816390A1 (de) * | 1968-01-17 | 1969-08-21 | Solvay | Verfahren zum Stabilisieren chlorierter Kohlenwasserstoffe |
| DE1765130A1 (de) * | 1968-04-06 | 1971-07-01 | Bayer Ag | Isolier- und Kuehlfluessigkeit fuer elektrische Geraete |
| NL7103446A (https=) * | 1970-03-18 | 1971-09-21 | ||
| US3976605A (en) * | 1974-03-28 | 1976-08-24 | Sumitomo Chemical Company, Limited | Foamed plastics of resin compositions comprising pullulan type resins and thermoplastic resins and process for producing the same |
| DE2449667C3 (de) * | 1974-10-18 | 1987-07-30 | Wacker-Chemie GmbH, 8000 München | Stabilisiertes Perchloräthylen |
| DE2627989C2 (de) * | 1975-07-11 | 1985-08-01 | Solvay & Cie., Brüssel/Bruxelles | Stabilisierung von Trichloräthylen und von Tetrachloräthylen sowie stabilisiertes Trichloräthylen und stabilisiertes Tetrachloräthylen |
| US4312794A (en) * | 1980-04-02 | 1982-01-26 | Electric Power Research Institute, Inc. | Ultra pure tetrachloroethylene dielectric fluid |
-
1980
- 1980-06-02 US US06/155,070 patent/US4293433A/en not_active Expired - Lifetime
-
1981
- 1981-04-24 CA CA000376163A patent/CA1165107A/en not_active Expired
- 1981-05-26 DE DE8181104045T patent/DE3170583D1/de not_active Expired
- 1981-05-26 AT AT81104045T patent/ATE13472T1/de not_active IP Right Cessation
- 1981-05-26 EP EP81104045A patent/EP0041220B2/en not_active Expired - Lifetime
- 1981-05-29 JP JP8241481A patent/JPS5721011A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0378724B2 (https=) | 1991-12-16 |
| EP0041220B1 (en) | 1985-05-22 |
| ATE13472T1 (de) | 1985-06-15 |
| EP0041220A1 (en) | 1981-12-09 |
| EP0041220B2 (en) | 1990-06-13 |
| DE3170583D1 (en) | 1985-06-27 |
| US4293433A (en) | 1981-10-06 |
| JPS5721011A (en) | 1982-02-03 |
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