Boots – shoes – and leggings
Patent
1995-05-18
1996-01-16
Voeltz, Emanuel T.
Boots, shoes, and leggings
364480, 364481, 324521, G01R 3100
Patent
active
054853940
ABSTRACT:
A method of locating a fault point in a parallel two-circuit transmission line in an n-terminal system. When a single fault occurs at one place in one circuit of the transmission line and when a multiple fault occurs at the same place in the two circuits, a distance to the fault may be calculated by the method of this invention. The method comprises the steps of transforming the transmission line into a T three-terminal parallel two-circuit transmission line circuit having three branches, calculating a value representing a length of one of the three branches on the basis of differential currents flowing into the branch points of the transmission line, determining if that value represents the distance from a terminal connected to the branch point to the fault point, employing the value as the distance to the fault point if the value represents such a distance, repeating the value calculation and determination for the other two branches if the value does not represent the distance to the fault, determining a next branch point for which to perform equivalent transformation with respect to, and repeating the previous steps until the fault is found.
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Emura Tokuo
Ishizu Kyoji
Ito Susumu
Murata Kenji
Sonohara Kazuo
Nissin Electric Company, Limited
Peeso Thomas
The Kansai Electric Power Co. Inc.
Voeltz Emanuel T.
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