Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent
1997-07-31
2000-05-16
Ballato, Josie
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
318254, 318656, 318701, G01R 114, H02K 2300, G05B 106, H02P 146
Patent
active
060641916
ABSTRACT:
A current transducer includes a current transformer in which the conductor carrying the current to be monitored constitutes the primary. The transformer secondary is wound on a toroidal core. The transformer is operated below its cut-off frequency such that the output from the secondary is proportional to the differential of the current in the primary. The secondary output is integrated by an integrator to provide a measure of current in the primary and the integrator is initialized at predetermined intervals. A current measuring device for an electric machine, for example a reluctance machine, includes at least one of the current transducers.
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Ballato Josie
Hollington Jermele M.
Switched Reluctance Drives Limited
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