http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Mandava Mohana Rao,M Joy Thomas,B.P. Singh 대한전기학회 2007 Journal of Electrical Engineering & Technology Vol.2 No.3
The transient fields generated during switching operations in a Gas Insulated Substation(GIS) are associated with high frequency components in the order of few tens of MHz. These transient fields leak into the external ennearby electronics. Measurements of the transient fields are thus required to characterise the interference caused by switching phenomena in such substations. In view of the above, E-field emission measurement during a switching operation has been carried out for a 245 kV GIS model, using a resonant dipole antenna and D-dot sensor. The characteristics of the E-fields i.e., frequency spectra and their levels have been analysed and are reported in the paper. Suitability of the measurements has been confirmed by comparing frequency spectra of the measured and computed transient fields.