Detection of the impedance variation for nuclear control cable using time frequency domain reflectometry

Author

Seung Jin Chang ; Chun Ku Lee ; Sin Ho Lee ; Jin Bae Park

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

fYear

2013

fDate

6-9 May 2013

Firstpage

151

Lastpage

156

Abstract

In this paper, an impedance change localization for the nuclear control cable using the time-frequency domain reflectometry (TFDR) is proposed. The reference signal is designed by analyzing characteristics of the target cable and capacitive coupler. To be prepared for on-voltage experiment, the reference signal is injected into the target cable via capacitive coupler. The experiment using the TFDR and TDR is carried out to localize the impedance variation spot (0, 30, 50, 70, 90 Ω) in the target cable. Through the experiment, the accuracy of the proposed TFDR system is proved.

Keywords

electric connectors; nuclear power stations; power cables; signal processing; time-domain reflectometry; time-frequency analysis; TFDR system; capacitive coupler; impedance change localization; impedance variation detection; impedance variation spot; nuclear control cable; on-voltage experiment; reference signal; target cable; time frequency domain reflectometry; Bandwidth; Correlation; Couplers; Impedance; Power cables; Signal resolution; Time-frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2013 IEEE International

Conference_Location

Minneapolis, MN

ISSN

1091-5281

Print_ISBN

978-1-4673-4621-4

Type

conf

DOI

10.1109/I2MTC.2013.6555400

Filename

6555400