Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of ground fault indication
Patent
1992-03-05
1994-05-03
Snow, Walter E.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of ground fault indication
340680, G01R 3114
Patent
active
053091094
ABSTRACT:
By forcibly grounding a selected one of three phases of a three-phase power distribution line, a higher line-to-ground voltage is applied to other phases thereby causing very small-scale grounding at a fault position so that the fault position can be specified by detecting the small-scale grounding current as generated.
REFERENCES:
patent: 1055018 (1913-03-01), Burnham
patent: 3287636 (1966-11-01), Gagniere
Miyazaki Terunobu
Nishijima Kazuo
Hitachi , Ltd.
Snow Walter E.
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