The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2019
Filed:
Oct. 29, 2015
Rolls-royce Plc, London, GB;
Sivakumar Nadarajan, Singapore, SG;
Shantha Dharmasiri Gamini Jayasinghe, Singapore, SG;
Amit Kumar Gupta, Singapore, SG;
Chandana Jayampathi Gajanayake, Singapore, SG;
Viswanathan Vaiyapuri, Singapore, SG;
ROLLS-ROYCE PLC, London, GB;
Abstract
A method of assessing a condition of a multi-phase power system comprises the steps of: acquiring a voltage signal and a current signal for each phase of the multi-phase power system; calculating a product of the voltage signal for each phase of the multi-phase power system with one of the current signals such that the product is between a voltage signal for one phase and a current signal for a different phase for at least two of the products; summing the calculated products; and identifying the possible existence of a fault in the multi-phase power system based on a frequency analysis of the summed calculated products.