NDLI: An Interrupting Capacity Model of Axial Magnetic Field Vacuum Interrupters with Slot Type Contacts

Content Provider	IEEE Xplore Digital Library
Author	Zhiyuan Liu Shaoyong Cheng Xuan Zhang Jimei Wang Quan Wang Guangli He
Copyright Year	2006
Description	Author affiliation: State Key Lab. of Electr. Insulation & Power Equip., Xi'an Jiaotong Univ. (Zhiyuan Liu; Shaoyong Cheng; Xuan Zhang; Jimei Wang)
Abstract	This paper introduces a new interrupting capacity model for slot type axial magnetic field (AMF) vacuum interrupters (VIs), which is as I=k times $D^{2}$ times $B_{z}$ $^{alpha}.$ It means that interrupting capacity of a slot type AMF VI is proportional to contact area times $alpha^{th}$ power of AMF. When contact gap increase, AMF weakens. Thus interrupting capacity decreases with increase of contact gap according to the model. The model is validated by short circuit current interruption tests with contact diameters of 48mm, 58mm and 66mm and contact gaps of 8mm, 11mm and 14mm. Even though there is some difference between the model predictions and experimental results, the model predictions are close to rated short circuit interrupting capacity of tested vacuum interrupters at contact gap of 8mm. More test results are needed to support the new model and AMF distribution should be considered to improve the model. After that, the new model is expected to be used until high voltage VIs that has long contact gaps
Starting Page	297
Ending Page	300
File Size	4500257
Page Count	4
File Format	PDF
ISBN	1424401917
ISSN	10932941
DOI	10.1109/DEIV.2006.357290
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-25
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic fields Interrupters Circuit testing Voltage Short circuit currents Magnetic flux density Vacuum technology Dielectrics and electrical insulation Predictive models Vacuum arcs
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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