High Temperature Superconducting Fault Current Limiter for Utility Applications
One of the most near term High Temperature Superconductor (HTS) applications is the Fault Current Limiter (FCL). It is a device that can provide significant energy benefits and cost savings for the power utility industry. This is especially important when the industry is facing deregulation. The Lockheed Martin team, which also includes ASC, SCE, and LANL, has been developing a 2.4 kV, 2.2 kA HTS FCL since October 1993. This two-year Department of Energy (DoE) cost sharing program is for developing HTS power utility applications. In this paper, a general review of what a FCL is will first be given, followed by a brief description of its requirement definition and underlying working principle. A survey of the recent worldwide progress made in the development of this new utility device will then be given. Description of the salient features of the LMC FCL will be described and compared to other competing FCL concepts. Finally, a status report of this two year program is given and future development plan outlined.
KeywordsHigh Temperature Superconductor Circuit Breaker Fault Current Superconducting Fault Current Limiter Fault Current Limiter
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