A Novel Temperature Monitoring System Based on FBG for Switchgear

Author

Li Yanqiu ; Cheng Weiliang

Author_Institution

Key Lab. of Condition Monitoring & Control for Power Plant Equip. of Minist. of Educ., North China Electr. Power Univ., Beijing, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

To satisfy temperature monitoring of high voltage (HV) switchgear cabinet, a novel temperature monitoring system based on Fiber Bragg Grating (FBG) is developed in this paper. The principles of Fiber Bragg Grating sensor and its temperature characteristics are introduced. Two calibration methods are used to improve the accuracy of the sensor. A temperature monitoring system based on FBG for HV switchgear cabinet is designed. FBG is used to detect temperature and optical fiber is utilized to transport signals. The monitoring system has been successfully used in monitoring the contacts temperature of HV switchgear cabinet. The experimental results indicate that FBG sensors can measure the contact point temperature for a long time and satisfy the demand in measurement range, measurement precision and anti-high voltage interference. The problem of temperature measurement in high voltage and strong magnetic field environment is solved.

Keywords

Bragg gratings; fibre optic sensors; switchgear; temperature sensors; FBG; HV switchgear cabinet; antihigh voltage interference; contact point temperature; contacts temperature; fiber Bragg grating sensor; high voltage switchgear cabinet; magnetic field environment; measurement precision; optical fiber; temperature characteristics; temperature measurement; temperature monitoring system; transport signals; Bragg gratings; Calibration; Fiber gratings; Magnetic field measurement; Sensor phenomena and characterization; Switchgear; Temperature measurement; Temperature sensors; Time measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5448990

Filename

5448990