Distributed Real-Time Temperature Rise Monitoring of Transformers (Conference Presentation)

Ping Lu; Michael Buric; Paul Ohodnicki

doi:10.1117/12.2305082

14 May 2018 Distributed Real-Time Temperature Rise Monitoring of Transformers (Conference Presentation)

Ping Lu, Michael Buric, Paul Ohodnicki

Proceedings Volume 10654, Fiber Optic Sensors and Applications XV; 1065411 (2018) https://doi.org/10.1117/12.2305082
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

Abstract

Real-time temperature mapping that solves local overheating problems is important for obtaining an optimized thermal design for high-efficiency power transformers. Internal temperature monitoring of operating power transformers can also be leveraged for asset monitoring applications targeting at-fault detection enabling condition-based maintenance programs. However, transformers present a variety of challenging sensing environments such as high-levels of electromagnetic interference and limited space for conventional sensing systems in which to operate. Immersion of some power transformers in insulation oils for thermal management during operation and the presence of relatively large and time varying electrical and occasional magnetic fields make sensing technologies requiring electrical wires or active power at sensing locations highly undesirable. In this work, we investigate dynamic thermal response of a standard single-mode optical fiber instrumented on compact transformer cores by using an optical frequency-domain reflectometry scheme. Correlation between conventional temperature sensing methods and fiber-optic sensing results as well as trade-offs between spatial resolution and temperature measurement accuracy is discussed and spatially resolved real-time monitoring of temperatures in energized transformers is demonstrated.

Conference Presentation

Citation Download Citation

Ping Lu, Michael Buric, and Paul Ohodnicki "Distributed Real-Time Temperature Rise Monitoring of Transformers (Conference Presentation)", Proc. SPIE 10654, Fiber Optic Sensors and Applications XV, 1065411 (14 May 2018); https://doi.org/10.1117/12.2305082

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Raman spectroscopy

Spatial resolution

Distance measurement

Sensors

Computer simulations

Differential equations

Fiber optics sensors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years