H - Electricity – 01 – T
Patent
H - Electricity
01
T
317/18
H01T 4/00 (2006.01) H01C 7/10 (2006.01) H01T 1/16 (2006.01) H01T 4/02 (2006.01)
Patent
CA 2027288
ABSTRACT A surge arrester is provided including highly non-linear metal oxide varistor disks in series with one or more resistively graded gap assemblies. The gap assemblies comprise a low exponent, non-linear silicon carbide resistive material in parallel with a spark gap. In this combination, the arrester voltage is shared between the gap assemblies and the MOV disks at normal steady-state system voltages. The arrester provides substantial improvements in temporary overvoltage performance and protection levels over conventional gapless MOV arrester designs.
Hartman Thomas C.
Kershaw Stanley S. Jr.
Wendahl Laurence K.
Cooper Power Systems Inc.
Hartman Thomas C.
Kershaw Stanley S. Jr.
Smart & Biggar
Wendahl Laurence K.
LandOfFree
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