Detection of transposition group short circuits in machine windi

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor

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324110, 324528, 322 99, 318490, 361 20, G01R 3102

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active

048496901

ABSTRACT:
A method for nondestructively electronically detecting a short circuit in a conductor system which is composed of two parallel inductor groups connected together to form a selected current path when no short circuit exists, by the steps of: disposing a current probe at a selected location of the current path for sensing changes in the current flowing in the path at the selected location; and injecting a fast rate-of-rise current pulse into the path; and monitoring the response of the current probe to provide an indication of the existence of a short circuit.

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