Electrical resistors – Ribbon resistance element bent or curved on flat side
Patent
1993-10-21
1995-03-07
Lateef, Marvin M.
Electrical resistors
Ribbon resistance element bent or curved on flat side
338281, 338283, 338295, 318376, H01C 300
Patent
active
053962141
ABSTRACT:
A dynamic braking grid arrangement for reducing EMI generated by dynamic or partial regenerative electrical braking of an electric traction motor powered vehicle coupled to a wayside power source by a third rail or catenary. The grid arrangement comprises a high-power dissipation resistance grid having a plurality of separately defined resistance elements, each having a generally elongate configuration. Mounting means support each of the grid elements adjacent to and parallel with each other of the elements. A plurality of electrical conduction devices connect the elements into an electrical circuit such that current passes through at least one element in a first direction and through at least one adjacent element in a second opposite direction such that EMI generated by any one element is substantially cancelled by EMI generated by an adjacent element.
REFERENCES:
patent: 3890551 (1975-06-01), Plunkett
patent: 4093900 (1978-06-01), Plunkett
General Electric Company
Kratz Ann B.
Lateef Marvin M.
Snyder Marvin
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