Title:
PRESSURE-REGULATING APPARATUS FOR TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2011/013960
Kind Code:
A2
Abstract:
The present invention relates to a pressure-regulating apparatus for regulating the internal pressure of a transformer, wherein the passage of air introduced into or discharged from a pressure-regulating bag is divided to regulate the internal pressure of the transformer, to thereby improve pressure-regulating efficiency and to achieve a cooling effect. The apparatus for regulating the pressure of the transformer is filled with insulating oil to form an air layer in an upper portion of the transformer, and comprises: a connection pipe, one end of which has an external stopper through which outside air is introduced or discharged; an internal cylinder in communication with the connection pipe and first and second through-holes formed though an upper portion thereof, and which is arranged within the transformer such that a lower portion thereof is impregnated with the insulating oil; a pressure-regulating bag in communication with the internal cylinder via first and second connection portions connected to the respective first and second through-holes, and which is arranged in the air layer such that the pressure-regulating bag contracts or expands in accordance with the change in the internal pressure of the transformer; an air passage pipe, one end of which is inserted into the connection pipe and the other end of which is in communication with the second connection portion; and first and second open/shut means arranged at the respective ends of the first and second connection portions to enable air to flow in a single direction.
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Inventors:
KIM, Sung-jin (A-105, Kumoh National Institute of Technology Apt. 111-1, Gongdan-don, Gumi-si Gyeongbuk 730-030, 730-030, KR)
김성진 (경북 구미시 공단동 111-1 금오공대아파트 A-105, 730-030 Gyeongbuk, 730-030, KR)
김성진 (경북 구미시 공단동 111-1 금오공대아파트 A-105, 730-030 Gyeongbuk, 730-030, KR)
Application Number:
KR2010/004879
Publication Date:
February 03, 2011
Filing Date:
July 26, 2010
Export Citation:
Assignee:
KUMOH NATIONAL INSTITUTE OF TECHNOLOGY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (1 Yangho-dong, Gumi-si, Gyeongbuk 730-390, 730-390, KR)
금오공과대학교 산학협력단 (경북 구미시 양호동 1번지, 730-390 Gyeongbuk, 730-390, KR)
KUKDONG POWER SOURCE CO.,LTD. (445-4, Sin-ri Jicheon-myeon, Chilgok-gun, Gyeongbuk 718-821, 718-821, KR)
극동파워소스(주) (경북 칠곡군 지천면 신리445-4, 718-821 Gyeongbuk, 718-821, KR)
금오공과대학교 산학협력단 (경북 구미시 양호동 1번지, 730-390 Gyeongbuk, 730-390, KR)
KUKDONG POWER SOURCE CO.,LTD. (445-4, Sin-ri Jicheon-myeon, Chilgok-gun, Gyeongbuk 718-821, 718-821, KR)
극동파워소스(주) (경북 칠곡군 지천면 신리445-4, 718-821 Gyeongbuk, 718-821, KR)
International Classes:
H01F27/23; H01F27/02
Attorney, Agent or Firm:
LEEON INTELLECTUAL PROPERTY LAW FIRM (316ho, Kolon Science Valley 2cha 811, Guro-dong, Guro-gu, Seoul 152-050, 152-050, KR)
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