Adhesive bonding and miscellaneous chemical manufacture – Methods – Making electrical conductors of indefinite length
Patent
1986-02-18
1987-01-27
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Making electrical conductors of indefinite length
156 56, 336 84R, H01B 1326
Patent
active
046392823
ABSTRACT:
A method for improving the electrical insulation of an electrode in a power transformer included in a converter plant of a high voltage direct current (HVDC) transmission system. The method involves winding around the electrode, layers of tape of woven or non-woven fibrous structure of non-conducting cellulose material, inorganic plastics material, or inorganic insulating material. This means that ions approaching the electrode, which are migrating under the influence of a high d.c. field outside the electrodes, do not sense the porous tape insulation as any noticeable obstacle, while at the same time the insulating layer is sufficiently dense to increase the breakdown value in the case of electrical surges.
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patent: 3376531 (1968-04-01), Fischer et al.
patent: 3531751 (1970-09-01), Sargent
patent: 3928832 (1975-12-01), Forsberg et al.
patent: 3959549 (1976-05-01), Penczynski et al.
patent: 4449111 (1984-05-01), Nakajima
Uhlmann, Power Transmission by Direct Current, Springer Verlag, 1975, Cat. No. TK 3111.u37.
ASEA Aktiebolag
Dawson Robert A.
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