Fiber optic gas detection system for health monitoring of oil-filled transformer

H. L. Ho; J. Ju; W. Jin

doi:10.1117/12.834904

5 October 2009 Fiber optic gas detection system for health monitoring of oil-filled transformer

H. L. Ho, J. Ju, W. Jin

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75030T (2009) https://doi.org/10.1117/12.834904
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

This paper reports the development of a fiber-optic gas detection system capable of detecting three types of dissolved fault gases in oil-filled power transformers or equipment. The system is based on absorption spectroscopy and the target gases include acetylene (C₂H₂), methane (CH₄) and ethylene (C2H₄). Low-cost multi-pass sensor heads using fiber coupled micro-optic cells are employed for which the interaction length is up to 4m. Also, reference gas cells made of photonic bandgap (PBG) fiber are implemented. The minimum detectable gas concentrations for methane, acetylene and ethylene are 5ppm, 2ppm and 50ppm respectively.

Citation Download Citation

H. L. Ho, J. Ju, and W. Jin "Fiber optic gas detection system for health monitoring of oil-filled transformer", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75030T (5 October 2009); https://doi.org/10.1117/12.834904

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available