Patent · US Expired

Liquid cooled static excitation system for a dynamoelectric machine

US4682068A · kind A · utility

11Cited by
12References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 16, 1985
Grant dateJul 21, 1987
Priority date
Expiry dateSep 16, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K9/19
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An excitation system of a large dynamoelectric machine includes an excitation transformer having a liquid coolant system. The coolant system of the transformer is supplied with a liquid coolant, preferably from an existing source of de-ionized water, thereby permitting a smaller transformer to be used and/or the output rating of the transformer (and ultimately the output rating of the machine) to be increased, while using the same size transformer. The transformer may be disposed separate from, yet closely proximate, the machine.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.