DocumentCode
844133
Title
An application of metal oxide surge arresters in the elimination of need for closing resistors in EHV breakers
Author
Ribeiro, J.R. ; McCallum, M.E.
Author_Institution
Florida Power & Light Co., Miami, FL, USA
Volume
4
Issue
1
fYear
1989
fDate
1/1/1989 12:00:00 AM
Firstpage
282
Lastpage
291
Abstract
At Florida Power & Light Co., a large percentage of the 500 kV circuit breakers were found to have broken or failing closing resistor mechanisms. A simulation study using the EMTP program for the statistical evaluation of switching surge flashover rates in the absence of breaker closing resistors is described. The stress on the metal oxide (MOV) surge arresters at the line ends is also evaluated. The conclusion is that with the MOV surge arresters at the 500 kV line terminals, breaker closing resistors are not required for the system studied
Keywords
circuit breakers; flashover; resistors; surge protection; switching; 500 kV; EHV breakers; EMTP program; circuit breakers; closing resistors; metal oxide surge arresters; simulation study; switching surge flashover rates; Arresters; Circuit breakers; EMTP; Flashover; Power system reliability; Power transmission lines; Resistors; Surge protection; Transient analysis; Voltage;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.19215
Filename
19215
Link To Document