Development and testing of a 180-volt dc electronic circuit breaker with a 335-ampere carry and 1200-ampere interrupt ratingNASA Lewis Research Center and associated contractors have conducted a program to assess the potential requirements for a high-current switch to conceptually design a switch using the best existing technology, and to build and demonstrate a breadboard which meets the requirements. The result is the high current remote bus isolator (HRBI). The HRBI is rated at 180 V dc, 335 A continuous with a 1200 A interrupt rating. It also incorporates remote-control and protective features called for by the Space Station Freedom PMAD dc test bed design. Two breadboard 335 A circuit breakers were built and tested that demonstrate a promising concept of paralleled current-limiting modules. The units incorporated all control and protective features required by advanced aerospace power systems. Component stresses in each unit were determined by design, and are consistent with a life of many thousands of fault operations.
Document ID
19920068034
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Brush, A. S. (Sverdrup Technology, Inc., Brook Park; NASA, Lewis Research Center Cleveland, OH, United States)
Phillips, R. L. (Rockwell International Corp. Rocketdyne Div., Canoga Park, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: IECEC ''91: Intersociety Energy Conversion Engineering Conference