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This paper describes a methodology to obtain a linear frequency-dependent black-box model of a 1 kVA 220 V/127 V single-phase transformer considering compensation of errors due to limitations of the considered current sensor and influence of measuring cables. The limitations of the current sensor are assessed by determining the frequency response of carbon resistors with nominal values from 0.5 Ω...
The superconducting magnet group at Lawrence Berkeley National Laboratory has been developing Nb3Sn high-field accelerator magnet technology for the last fifteen years. In order to support the magnet R&D effort, we are developing a diagnostic system that can help identify the causes of performance limiting quenches by recording small flux-changes within the magnet prior to quench-onset. These...
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