Title :
An investigation of transient overvoltage generation when switching high voltage shunt reactors by SF6 circuit breaker
Author :
Ma, Z. ; Bliss, C.A. ; Penfold, A.R. ; Harris, A.F.W. ; Tennakoon, S.B.
Author_Institution :
T&D Transmission Switchgear, GEC Alsthom Eng. Res. Centre, Stafford, UK
fDate :
4/1/1998 12:00:00 AM
Abstract :
The work reported in this paper can be grouped into three categories: empirical investigations; analytical studies; and computer simulations. The studies have identified the causes of high transient overvoltages which are produced when switching high voltage shunt reactors. Laboratory and site testing have shown that multiple reignition is the most likely cause of the high overvoltages. Circuit analysis has been carried out to identify the conditions which lead to multiple reignitions. A computer model has been developed to allow the likelihood of multiple reignitions occurring to be assessed
Keywords :
SF6 insulation; gas blast circuit breakers; overvoltage; power system analysis computing; power system transients; software packages; switching; HV shunt reactor switching; SF6; SF6 circuit breaker; circuit analysis; computer model; computer simulation; laboratory testing; likelihood analysis; multiple reignition; power systems; site testing; transient overvoltage generation; Circuit breakers; Circuit testing; Geographic Information Systems; Inductors; Interrupters; Laboratories; Predictive models; Shunt (electrical); Switching circuits; Voltage control;
Journal_Title :
Power Delivery, IEEE Transactions on
