Substation with surge arresters

Details Substation with surge arresters Substation with surge arresters

1996-03-04

1998-01-27

Williams, Howard L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361120, 361 62, 338 21, H02H 104

Patent

active

057127565

ABSTRACT:
A substation includes standard arresters installed near a bushing of a power transmission line entrance and at a connecting bus of a transformer and one or more high voltage arresters having a discharge voltage 10 to 30% higher than a standard arrester. Each high voltage arrester uses zinc oxide elements and is disposed on a line side of a line entrance breaker and/or near an open end of a double main bus in the substation.

REFERENCES:
patent: 4450426 (1984-05-01), Miyoshi et al.
patent: 4681717 (1987-07-01), Brooks et al.
patent: 4729053 (1988-03-01), Maier et al.
patent: 4943795 (1990-07-01), Yamazaki et al.
T. Ono et al, "Estimation of Overvoltage Suppression Effect of an Open End Arrester and Suppression of Lightning Surge with a Light-duty Arrester", Journal Of Electric Engineering Society Of Japan, vol. 112, No. 3, 1992, pp. 259-266.

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