| Title |
A Study on the Effects of Line Constants Models for the Overvoltage Analysis in EMTP |
| Authors |
Kyung-Tak Kim ; Ju-Sik Kwak ; Dong-Jin Kweon ; Kyo-Sun Koo ; Jung-Wook Woo |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.10.033 |
| Keywords |
EMTP ; Switching surge ; Overvoltage ; Frequency |
| Abstract |
There are several overvoltages by abnormal conditions in power system. We need to calculate these ovevoltages for the insulation design and the fault analysis. For these calculations, we used EMTP(Electro-magnetic Transients Program). During EMTP calculations, the accurate modelling of the equipments is very important for analysis results. In this paper, we considered the effects of the modelling condition"s changes for transmission line within EMTP modelling cases of overvoltage analysis. Specially, we considered CB closing cases of 765[㎸] system. So, we had changed the calculation frequencies of Line Constants, which is used for CB closing cases. In addition, we compared the calculation result and the measured result. |