NDLI: A Novel Hybrid Current-Limiting Circuit Breaker for Medium Voltage: Principle and Test Results

Content Provider	IEEE Xplore Digital Library
Author	Steurer, M. Frolich, K. Holaus, W. Kaltenegger, K.
Copyright Year	1981
Abstract	Although many attempts have been made to design a fault current-limiting circuit breaker (FCLCB) for medium voltage electric power systems, no economically attractive solution has been achieved so far. A novel concept for an F CLCB is introduced based on a hybrid arrangement of semiconductors, temperature-dependent resistors, and a newly developed fast-opening mechanical switch. The latter utilizes one part of an electrodynamic repulsion drive, which is concurrent with the moving double contact system. Laboratory tests as well as computer simulations of the complete FCLCB verify as an example the feasibility for the goal ratings 12 kV and 2/20 kA (single phase). A cost analysis shows the FCLCB to be more expensive than a conventional generator circuit breaker but to be in the price range of the Is-limiter and below the costs of superconducting FCL principles. It is concluded that the method provides the basis for further commercial product development.
Starting Page	62
Ending Page	62
Page Count	1
File Size	331888
File Format	PDF
ISSN	02721724
Volume Number	22
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Circuit testing Circuit breakers Medium voltage Costs Circuit faults Power system economics Power generation economics Resistors Power semiconductor switches Electrodynamics high-speed switching Circuit breaker controlled switching costs fault-current limiting GTO
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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