NDLI: Research on a gravity heat pipe for high voltage vacuum interrupter

Content Provider	IEEE Xplore Digital Library
Author	Xiaoling Yu Zhiyuan Liu Quanke Feng Yijiang Wei Jimei Wang
Copyright Year	2008
Description	Author affiliation: Sch. of Electr. Eng., Xi'an Jiaotong Univ., Jiaotong (Zhiyuan Liu; Jimei Wang) \|\| Sch. of Energy & Power Eng., Xi'an Jiaotong Univ., Xi'an (Xiaoling Yu; Quanke Feng; Yijiang Wei)
Abstract	Recently, development of high voltage vacuum interrupter with large nominal current attracted many interests due to high global warming effect of $SF_{6}$ gas. In order to enhance the nominal current, a gravity heat pipe was proposed to be installed as a stationary current-conduction rod in a high voltage vacuum interrupter. The heat pipe is composed of a concentric tube, of which the outer tube is made of oxygen-free copper and the inner tube is made of stainless steel. The bottom of the stainless steel tube was connected to the copper tube by holes. Transient and static thermal performance of the heat pipe was tested, and its thermal resistance was compared with a solid cooper rod with the same dimension. Experimental results show that thermal resistance of the heat pipe is about 1/3 of that of the copper rod, and it decreases slightly with rising of heat flux. Thermal simulation on a 126kV/2000A vacuum interrupter was done respectively when the stationary current-conduction rod is the gravity heat pipe and the copper rod. Simulation results reveal that in the heat pipe installed case, temperature of the contact is 67degC lower than that in the copper rod installed case.
Starting Page	129
Ending Page	132
File Size	284375
Page Count	4
File Format	PDF
ISBN	9789737553829
ISSN	10932941
DOI	10.1109/DEIV.2008.4676736
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-15
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gravity Voltage Interrupters Copper Thermal resistance Resistance heating Steel Global warming Testing Solids thermal simulation heat pipe vacuum circuit breakers vacuum interrupters nominal current
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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A gravity heat pipe for high voltage vacuum interrupter

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