Natural contamination test of insulators with dc voltage energization at inland areas

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · IEEE Trans. Power Del.; (United States)

DOI:https://doi.org/10.1109/61.193992· OSTI ID:6494898

Takasu, K; Shindo, T; Arai, N ^[1]

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1. Central Research Institute of Electric Power Industry, Tokyo (JP)

This report describes the natural contamination test results of insulator strings at inland areas. Natural exposure tests with -280 kV dc voltage energization were carried out for 5 years. The effect of dc voltage application on salt deposit was not notable except on the both sides of the insulator strings. These results are the same as those obtained in sea-side testing stations. The maximum value of leakage current was 3 mA and no flash-over occurred with electrical stress per unit string length of about 100 kV/m. The application of these results to insulation design for HVDC transmission lines is also discussed.

• OSTI ID: 6494898
• Journal Information: IEEE Trans. Power Del.; (United States), Journal Name: IEEE Trans. Power Del.; (United States) Vol. 3:4; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
CONTAMINATION
CURRENTS
DC SYSTEMS
DESIGN
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ENERGY SYSTEMS
EQUIPMENT
FLASHOVER
HVDC SYSTEMS
POWER SYSTEMS