Naslov
Transients Caused by Switching of 420 kV Three- Phase Variable Shunt Reactor

Autori
Filipović-Grčić, Božidar ; Župan, Alan ; Uglešić, Ivo ; Mihalic, Dragutin ; Filipović-Grčić, Dalibor

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
International Conference on Power Systems Transients (IPST 2015) / - Zagreb, 2015, 1-8

Skup
International Conference on Power Systems Transients (IPST 2015)

Mjesto i datum
Cavtat, Hrvatska, 15.06.2015. - 18.06.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
variable shunt reactor ; SF6 circuit breaker ; controlled switching ; inrush current ; electric arc model ; EMTP-RV simulations

Sažetak
This paper describes transients caused by uncontrolled and controlled switching of three- phase 420 kV variable shunt reactor (VSR). The model for the analysis of the transients caused by switching of VSR was developed in EMTP-RV software which includes dynamic electric arc in SF6 circuit breaker and the model of substation equipment. Inrush currents due to VSR energization and overvoltages due to de- energization were determined at tap positions corresponding to lowest 80 MVAr and highest 150 MVAr reactive power. Based on the calculation results, mitigation measures and operating switching strategy of VSR were proposed.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA