Order Publications

Reference: ISH2015_579

Type:
ISH Collection
Title:

Detection and Localization of the Hot Spot in Nuclear Control/Instrumentation Cable Using Time- Frequency Domain Reflectometry

 

Abstracts

Time-frequency domain reflectometry method using Gaussian enveloped linear chirp signal is used to detect and to locate the hot spot in nuclear control and instrumentation cable. The reference signal designed to fit for the characteristic of target cable is applied to target cable including hot spot which is simulated in heating chamber. Using the Wigner distribution, the reflected signal from the hot spot is analyzed in time-frequency domain. To estimate the hot spot location, the time-frequency cross correlation is applied to control and instrumentation cable. The experiment, considering insulation properties in thermal environment, are performed on three types of cables depending on insulation (EPR, HFI, FTFE). To detect the hot spot in target cable, the additional experiment which is applied to DC power source is carried out. Through the experiment, the performance of the proposed time-frequency domain reflectometry system is verified.
 

File Size: 577,6 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org