DocumentCode :
852361
Title :
A study and development of high water pressure hot-line insulator washing equipment for 500-kV substation
Author :
Yasuda, Masayuki ; Fujimura, Tetsuo
Author_Institution :
Tokyo Electric Power Co., Inc., Tokyo, Japan
Volume :
95
Issue :
6
fYear :
1976
Firstpage :
1919
Lastpage :
1928
Abstract :
High water pressure hot-line insulator washing equipment has been developed and in service in Japan as an effective measure to prevent the contamination flashovers of apparatus insulators at 500-kV class substations. This paper presents the results of studies on the development of the equipment, including selection of a suitable water pressure, developments of a nozzle suited for high water pressure washing and of section valves capable of minimizing water hammer, the safety of contaminated insulators against flashover during washing and electrical safety clearance between nozzles and energized parts.
Keywords :
Contamination; Electrical safety; Flashover; Insulation; Pollution measurement; Pressure measurement; Safety devices; Substations; Valves; Water pollution;
fLanguage :
English
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9510
Type :
jour
DOI :
10.1109/T-PAS.1976.32293
Filename :
1601895
Link To Document :
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