Resistor and capacitor graded termination

Details Resistor and capacitor graded termination Resistor and capacitor graded termination

1982-11-12

1985-02-05

Askin, Laramie E.

Electricity: conductors and insulators

With fluids or vacuum

Conduit or cable end structure

174 73R, H02G 1530, H02G 15072

Patent

active

044979754

ABSTRACT:
A termination is provided for terminating a high voltage DC cable. The termination has an outer annular insulator containing stacked capacitor elements for relieving electrical stress at the prepared end of the cable when the cable is carrying transient AC currents produced when the DC current is changed, e.g. during polarity switching. A plurality of resistors are interconnected by annular electrically conductive elements interposed between vertically adjacent capacitor elements to provide a highly resistive pathway from the cable conductor to ground, relieving the electrical stress created by DC current. The annular electrically conductive elements also serve to dissipate heat produced by the cable conductor. Preferably the capacitors provide sufficient stress relief that the cable may alternatively be used to carry high voltage AC current.

REFERENCES:
patent: 1868962 (1932-07-01), Atkinson
patent: 2794063 (1957-05-01), Nicholas
patent: 3289139 (1966-11-01), Hyde
patent: 3539703 (1970-11-01), Cloud
patent: 4056680 (1977-11-01), Aihara et al.
patent: 4228318 (1980-10-01), Selsing

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