Title :
Elimination of closing resistors on EHV circuit breakers
Author :
Legate, A.C. ; Brunk, J.H. ; Ray, J.J. ; Yasuda, E.J.
Author_Institution :
Bonneville Power Adm., Portland, OR, USA
fDate :
1/1/1988 12:00:00 AM
Abstract :
Closing resistors can be eliminated from EHV power circuit breakers when staggered (pole) closing or polarity closing is used on transmission lines that have metal oxide surge arresters (MOSA) only at the terminals. The results of computer studies and field tests that valid the concept are reported. Techniques for statistical studies of specific cases are described. It is concluded that 500 kV lines up to 320 km long can be successfully energized without the use of closing resistors
Keywords :
circuit breakers; power system protection; surge protection; 500 kV; EHV circuit breakers; closing resistors; computer studies; metal oxide surge arresters; polarity closing; pole closing; staggered closing; transmission lines; Arresters; Circuit breakers; Circuit testing; Control systems; Distributed parameter circuits; Maintenance; Power system protection; Power system reliability; Power systems; Power transmission lines; Resistors; Surge protection; Surges; Switching circuits; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
