Sinaga, Herman Halomoan (2009) DESIGN OF ULTRA HIGH FREQUENCY SENSORS FOR DETECTION OF PARTIAL DISCHARGES. In: 16TH INTERNATIONAL SYMPOSIUM ON HIGH VOLTAGE ENGINEERING, 24 Agustus 2009, CAPE TOWN, SOUTH AFRICA.

Preview

Text ISH 2009 Herman.pdf Download (2MB) | Preview

Abstract

Partial discharge (PD) measurement is an effective method to detect insulation deterioration. There are different ways that could be used to detect PDs, such as conventional PD measurements of the IEC60270, acoustic method and ultra high frequency (UHF) method. The UHF detection method has a number of advantages; the most dominant among these is a relatively lower level of noise and thus a better signal-to-noise ratio. This paper discusses the design of UHF sensors to detect PDs. Several types of sensor are investigated: monopole and conical sensors suitable for installation at transformer oil drain valves; bowtie, spiral and log spiral sensors for use at GIS dielectric windows. The sensors have ultra wideband (UWB) characteristic within frequency range of 300 MHz to 3 GHz. Experimental results show the conical sensor has higher gain response compared to the monopole, but the latter has a simpler construction. The disk sensor type with log spiral has a higher and smoother gain than the spiral and the bowtie, and its impedance characteristic is relatively more stable. Overall, results show the conical and log spiral antennas have the best response to PD signals.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Fakultas Teknik (FT) > Prodi Teknik Elektro
Depositing User:	DR. Herman H Sinaga
Date Deposited:	11 Apr 2023 00:50
Last Modified:	11 Apr 2023 00:50
URI:	http://repository.lppm.unila.ac.id/id/eprint/50142

Actions (login required)

View Item