Influence of supply voltage frequency and magnitude on PD pulse parameters

Author

Nyamupangedengu, Cuthbert ; Jandrell, Ian R.

Author_Institution

Johannesburg Sch. of Electr. & Inf. Eng., Univ. of the Witwatersrand, Johannesburg

Volume

15

Issue

6

fYear

2008

fDate

12/1/2008 12:00:00 AM

Firstpage

1590

Lastpage

1600

Abstract

A study on the influence of supply voltage magnitude and frequency on partial discharge (PD) pulse shapes is presented in this paper. Ultrawide band (UWB) time resolved PD pulse measurements were carried out on artificial PD defects using test voltage frequency range of 10-400 Hz and voltage range of 2-11 kV. The manner in which the PD pulse shape responded to changes in the test voltage characteristics depended on the defect type. The observations can be interpreted using the generally agreed theory of PD mechanisms. The knowledge generated in this work is valuable in the interpretation and comparison of PD measurements made at different voltages and frequencies. It also contributes to development of PD defect classification techniques based on the correlation between test voltage frequency and time-resolved PD.

Keywords

partial discharge measurement; pulse measurement; UWB time resolved PD pulse measurement; frequency 10 Hz to 400 Hz; partial discharge pulse shapes; supply voltage frequency; supply voltage magnitude; ultrawide band measurement; voltage 2 kV to 11 kV; Aging; Electrodes; Frequency; Insulation; Partial discharges; Pulse shaping methods; Shape; Surface discharges; Testing; Voltage; Partial discharges, pulse parameters, supply voltage magnitude and frequency;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

Conference_Location

12/1/2008 12:00:00 AM

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2008.4712662

Filename

4712662