Stator bars internally graded with conductive binder tape
US5723920A · kind A · utility
40Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1994 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Oct 12, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Stator bars for dynamoelectric machines are covered with an electrically conductive tape formed of a fabric support sheet carrying an electrically conductive polymeric binder system comprised of carbon particles dispersed in a polymeric matrix. The carbon particles are preferably selected from carbon black and/or graphite, and are present in the polymeric binder system in an amount of at least 5 percent by weight, based on the weight of the binder system. Low tip-up values of less than 0.025% and increased high voltage breakdown strengths of at least 700 VPM are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.