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Alternative power supply and dump resistor connections for similar, mutally coupled, superconducting coils

Author
Owen, E. W.
Published
United States : [publisher not identified], 1983
Springfield, Va.: National Technical Information Service, [approximately 1983]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Shimer, D. W. and Wang, S. T.

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Summary
Alternative methods of connecting similar mutually coupled coils to their power supplies and dump resistors are investigated. The circuits are evaluated for both operating and fault conditions. The factors considered are the voltage to ground during a dump, short circuits, open circuits, quenches, and failure of the protection system to detect a quench. Of particular interest are the currents induced in coils that remain superconducting when one or more coils quench. The alternative connections include combined power supplies, individual dump resistors, combined resistors and series and parallel dump resistors. A new circuit that contains coupling resistors is proposed. The coupling resistors do not affect normal fast dumps but reduce the peak induced currents while also reducing the energy rating of the dump resistors. Another novel circuit, the series circuit with diodes, is discussed. The MFTF-B central-cell solenoids are used as an example.
Report Numbers
DE84012602; UCRL-89204; CONF-831203-141
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: W-7405-ENG-48
OSTI Identifier 7091573
Research organization: Lawrence Livermore National Lab., CA (USA).
View MARC record | catkey: 47342545