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http://dx.doi.org/10.9714/psac.2014.16.1.032

Characteristics of joint resistance with different kinds of HTS tapes for heater trigger switch  

Lee, Jeyull (Yonsei University)
Park, Young Gun (Yonsei University)
Lee, Woo Seung (Yonsei University)
Jo, Hyun Chul (Yonsei University)
Yoon, Yong Soo (Shin Ansan University)
Ko, Tae Kuk (Yonsei University)
Publication Information
Progress in Superconductivity and Cryogenics / v.16, no.1, 2014 , pp. 32-35 More about this Journal
Abstract
Recently, many researches on the system of superconducting power supply and superconducting magnetic energy storage (SMES) using high temperature superconducting (HTS) tapes has been progressed. Those kinds of superconducting devices use the heater trigger switches that have a control delay problem at moments of heating up and cooling down. One way to reduce the time delay is using a different HTS tape at trigger part. For example, HTS tape having lower critical temperature can reduce time delay of heating up and heating down stage for heater trigger operation. This paper deals with resistances joint with different kinds of HTS tapes which have different properties to verify usefulness of the suggested method. Three kinds of commercial HTS tapes with different specifications are selected as samples and two kinds of solders are used for comparison. Joint is performed with temperature and pressure controllable joint machine and the joint characteristics are analyzed under the repeatable conditions.
Keywords
Lap Joint; Joint resistance; Thermal switch; Flux pump;
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