Naslov
Calculating Lightning Overvoltages Transferred Through a Transformer

Autori
Uglešić, Ivo ; Lukić, Mažana

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

Izvornik
Proceedings of 24th International Conference on Lightning Protection (ICLP) / - Birmingham, 1998, 588-593

Skup
24th International Conference on Lightning Protection (ICLP)

Mjesto i datum
Birmingham, Ujedinjeno Kraljevstvo, 14.09.1998. - 18.09.1998

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Lightning overvoltages; generator transformer; transferred overvoltages; damp; capacity

Sažetak
Lightning overvoltages transferred from the high-voltage system through the generator transformer to medium-voltage circuit of the power plant are calculated. The determination of transformer capacitances is described. A close lightning strike at high-voltage transmission line 220 kV is simulated. Calculated transferred overvoltages at the transformer have much higher magnitudes and frequencies then overvoltages at the generator. Overvoltages at the transformator are even higher when the generator is disconnected. A generator damps the magnitudes and lowes the frequencies of overvoltages due to its high capacity.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA