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U.S. Department of Energy
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Optical monitoring to detect contamination of power grid components

Patent ·
OSTI ID:1860028
A monitoring system includes an array of optical sensors disposed within a transformer tank. Each optical sensor is configured to have an optical output that changes in response to a temperature within the transformer tank. An analyzer is coupled to the array of optical sensors. The analyzer is configured to determine a sensed temperature distribution based on the sensed temperature. The sensed temperature distribution is compared to an expected distribution. Exterior contamination of the transformer tank is detected based on the comparison.
Research Organization:
Palo Alto Research Center Inc., Palo Alto, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
OE0000872
Assignee:
Palo Alto Research Center Incorporated (Palo Alto, CA)
Patent Number(s):
11,163,017
Application Number:
16/662,655
OSTI ID:
1860028
Country of Publication:
United States
Language:
English

References (2)

Evaluation condition of transformer based on infrared thermography results conference July 2009
Time- and Wavelength-Multiplexed Wavelength Shift Detection for High-Resolution, Low-Cost Distributed Fiber-Optic Sensing journal October 2017

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