Evaluation of RTV coating for station insulators subjected to coastal contamination
Measurements and analysis of contaminant samples from a nuclear power station which has suffered flashovers due to wind-swept salt spray are presented. The results of a program of laboratory tests on artificially contaminated porcelain station insulators, with and without a room temperature vulcanized (RTV) silicone rubber coating, are reported. Data from clean fog and salt mist tests are used to determine the improvement in flashover voltage level over a range of high contamination severity on RTV coated insulators. Visual observations and leakage current measurements made during surface discharge activity are utilized to demonstrate the influence of the RTV coating on discharge behavior. Switching impulse test results are also presented.
- Research Organization:
- Northeast Utilities Service Co., Hartford, CT (US); General Electric Co., EPRI High Voltage Transmission, Research Center, Lenox, MA (US)
- OSTI ID:
- 6183351
- 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
ELECTRICAL INSULATORS
PROTECTIVE COATINGS
NUCLEAR POWER PLANTS
FLASHOVER
ELECTRIC DISCHARGES
ELECTRIC UTILITIES
LEAK TESTING
MEASURING METHODS
PORCELAIN
SILICON
WIND
COATINGS
CURRENTS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELEMENTS
EQUIPMENT
NUCLEAR FACILITIES
POWER PLANTS
PUBLIC UTILITIES
SEMIMETALS
TESTING
THERMAL POWER PLANTS
200104* - Fossil-Fueled Power Plants- Components
296000 - Energy Planning & Policy- Electric Power