Influence of low air pressure on flashover voltages of polluted insulators
Numerous mountain 110 to 500 kV power transmission lines are in operation in the USSR; since 1967 a 110 kV lien has been in service at an altitude (H/sub o/) up to 3.58 km above the sea level; a recent 100 kV overhead line has H/sub o/ = 4 km, its entire 224 km length running above 1,8 km and at least 65% of its right-of-way lying in mountains with H/sub o/ less than or equal to 3 km. A number of 220 to 500 kV lines cross passes whose latitude exceeds 3.2 km. Construction of overhead lines in the mountains of the Caucasus, Central Asia and in the Eastern USSR made it necessary to conduct unique studies of outdoor insulation behaviour at air pressures p below the normal pressure values p/sub o/. Some of the studies were made in altitude chambers, and some, at special high-altitude outdoor test facilities. Here an attempt is made to generalize basic results of these studies made in the USSR.
- Research Organization:
- HVDC Power Transmission Research Institute (SU)
- OSTI ID:
- 6419427
- Journal Information:
- IEEE Trans. Power Del.; (United States), Vol. 4:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
29 ENERGY PLANNING
POLICY AND ECONOMY
20 FOSSIL-FUELED POWER PLANTS
ELECTRICAL INSULATORS
FLASHOVER
OVERHEAD POWER TRANSMISSION
CONSTRUCTION
USSR
POWER TRANSMISSION LINES
ATMOSPHERIC PRESSURE
DATA ANALYSIS
ENVIRONMENTAL EFFECTS
MOUNTAINS
PERFORMANCE TESTING
RECOMMENDATIONS
TEST FACILITIES
ASIA
CURRENTS
EASTERN EUROPE
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
EQUIPMENT
EUROPE
POWER TRANSMISSION
TESTING
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)
296002 - Energy Planning & Policy- Electric Power Transmission & Distribution- (-1989)
200104 - Fossil-Fueled Power Plants- Components