GB917036A - An electrically conducting varnish for application on the surface of an electrical insulation - Google Patents
An electrically conducting varnish for application on the surface of an electrical insulationInfo
- Publication number
- GB917036A GB917036A GB1266960D GB1266960D GB917036A GB 917036 A GB917036 A GB 917036A GB 1266960 D GB1266960 D GB 1266960D GB 1266960 D GB1266960 D GB 1266960D GB 917036 A GB917036 A GB 917036A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon carbide
- oil
- epoxy resin
- electrically conducting
- resin
- 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
Classifications
-
- 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
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
Abstract
Electrically conducting varnishes comprise a resinous binder which upon curing shows a volume shrinkage of 0,5 to 5%, and silicon carbide of high volume resistivity. The resinous binder may be an oil-modified alkyd, an epoxy resin, a mixture of an epoxy resin and an oil-modified polyester resin containing an excess of carboxyl groups, a polyurethane resin or a silicone resin. The silicon carbide is ordinary abrasive grade silicon carbide. In a typical example a mixture of the solvent free epoxy resin, sold under the Registered Trade Mark "Araldite D", which has a volume shrinkage on curing of about 3%, an amine type curing agent and silicon carbide is cured at room temperature or at raised temperature. In another example a varnish comprises a linseed-oil modified alkyd, zinc chromate, iron oxide, silicon dioxide, silicon carbide and xylol. Specification 842,039 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE587159 | 1959-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB917036A true GB917036A (en) | 1963-01-30 |
Family
ID=20267418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1266960D Expired GB917036A (en) | 1959-06-22 | 1960-06-21 | An electrically conducting varnish for application on the surface of an electrical insulation |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE592128A (en) |
| CH (1) | CH399560A (en) |
| GB (1) | GB917036A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434087A (en) * | 1967-06-12 | 1969-03-18 | Westinghouse Electric Corp | Crack-resistant casting composition |
| EP2600375A1 (en) * | 2011-11-30 | 2013-06-05 | Eaton Industries (Netherlands) B.V. | Driving rod for medium voltage switching element gear |
-
1960
- 1960-06-11 CH CH668360A patent/CH399560A/en unknown
- 1960-06-21 BE BE592128A patent/BE592128A/en unknown
- 1960-06-21 GB GB1266960D patent/GB917036A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3434087A (en) * | 1967-06-12 | 1969-03-18 | Westinghouse Electric Corp | Crack-resistant casting composition |
| EP2600375A1 (en) * | 2011-11-30 | 2013-06-05 | Eaton Industries (Netherlands) B.V. | Driving rod for medium voltage switching element gear |
| WO2013079591A1 (en) * | 2011-11-30 | 2013-06-06 | Eaton Industries (Netherlands) B.V. | Driving rod for medium voltage switching element gear |
| CN103975406A (en) * | 2011-11-30 | 2014-08-06 | 伊顿工业(荷兰)有限公司 | Driving rod for medium voltage switching element gear |
| US9318278B2 (en) | 2011-11-30 | 2016-04-19 | Eaton Industries (Netherlands) B.V. | Driving rod for medium voltage switching element gear |
Also Published As
| Publication number | Publication date |
|---|---|
| BE592128A (en) | 1960-10-17 |
| CH399560A (en) | 1965-09-30 |
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