Voltage non-linear resistor and its manufacture

Details Voltage non-linear resistor and its manufacture Voltage non-linear resistor and its manufacture

H - Electricity

01

C

356/114, 31/145,

H01C 7/10 (2006.01) H01C 7/102 (2006.01) H01C 7/112 (2006.01)

Patent

CA 1293118

VOLTAGE NON-LINEAR RESISTOR AND ITS MANUFACTURE Abstract of the Disclosure A voltage non-linear resistor excellent in lightning discharge current withstanding capability and electrical life performance against applied voltage comprises a disclike voltage non-linear element and a thin insulating covering layer integrally provided on the side surface of said element. In the resistor according to the invention, said element comprises zinc oxides as main ingredient, 0.1-2.0% bismuth oxides, as Bi2O3, 0.1-2.0% cobalt oxides, as Co2O3, 0.1-2.0% manganese oxides, as MnO2, 0.1-2.0% antimony oxides, as Sb2O3, 0.1-2.0% chromium oxides, as Cr2O3, 0.1-2.0% nickel oxides, as NiO, 0.001-0.05% aluminum oxides, as A12O3, 0.005-0.1% boron oxides, as B2O3, 0.001-0.05% silver oxides, as Ag2O and 1-3% silicon oxides, as SiO2, and said layer comprises 80-96% silioon oxides, as SiO2, 2-7% bismuth oxides, as Bi2O3 and antimony oxides for the remainder (% stands for mole %). The resistor of the invention preferably further comprises a thin glassy layer superimposed on the insulating covering layer. The resistors are advantageously adaptable to arrestors, surge absorbers used in high voltage power systems.

531586

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