Balanced quench protection circuit

A superconducting magnet electrical circuit (30) is provided for quench protection. A superconducting coil assemblage (60) is provided including a plurality of spatially separated main (32, 34) and secondary (36, 38) magnet coil portions. The main magnet coil portions are connected in series to form...

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Bibliographic Details
Main Authors MINFENG XU, BU-XIN XU, JINHUA HUANG, XIANRUI HUANG
Format Patent
LanguageEnglish
Published 30.04.2003
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:A superconducting magnet electrical circuit (30) is provided for quench protection. A superconducting coil assemblage (60) is provided including a plurality of spatially separated main (32, 34) and secondary (36, 38) magnet coil portions. The main magnet coil portions are connected in series to form at least one main coil series circuit (50). The secondary magnet coil portions are also connected in a series to form at least one secondary coil series circuit (50). At least one temperature limiting circuit (40, 42) is also provided. The temperature limiting circuit may be a quench heater circuit or a quench resistor circuit. The temperature limiting circuit has a plurality of quench heaters or a plurality of quench resistors (44, 46; 64, 66) connected with the superconducting coil assemblage. A superconductive switch (56) is coupled with the superconducting coil assemblage. The balanced quench arrangement avoids undesired forces being applied to the coil support structures.
Bibliography:Application Number: GB20020022285