Patent · US Expired

Ebullition cooled transformer

US4502032A · kind A · utility

2Cited by
5References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 16, 1984
Grant dateFeb 26, 1985
Priority date
Expiry dateFeb 16, 2004

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF28D15/02
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An ebullition cooled transformer has a housing, a core and coil assembly disposed on the lower portion of the housing to be immersed into a condensible electrically insulating refrigerant, a cooler unit located above the core and coil assembly within the housing, and a communicating tube disposed at the top of the housing to communicate with the outside air and provided with a porous filter permitting the air to permeate it but preventing a vapor of the refrigerant from permeating it.

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