Monitors detect hot spots on transformers
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LumaSense Technologies product story
Edited by the Engineeringtalk editorial team
Sep 27, 2005
Luxtron has been awarded the first of a multiple unit order by Salt River Project of Tempe, Arizona, USA, for the installation of its Fluoroptic fibre-optic hot-spot monitors on 28MVA transformers.
Luxtron reports that it has been awarded the first of a multiple unit order by Salt River Project of Tempe, Arizona, USA, for the installation of its Fluoroptic fibre-optic hot-spot monitors on 28MVA transformers.
Salt River Project (SRP), a longtime leader in applying selective technologies to optimise utilisation of T and D assets, has been applying Luxtron's WTS hot-spot monitors for large transformers (greater than 100MVA) for over 10 years.
Based on this experience, and after careful study, SRP made the decision to extend the benefits of fibre-optic hot-spot monitoring to its smaller transformers - down to 28MVA.
"Installing Luxtron fibre-optic hot-spot systems on our distribution substation transformers will give our dispatchers the real-time visibility of actual transformer temperatures", stated Gary McCulla, Senior Principal Engineer for SRP.
"With this visibility, SRP can safely optimise the load on these transformers, thus deferring additional transformer capacity".
"Luxtron works closely with technology leading utilities like SRP to develop robust and more cost-effective platforms for fibre-optic hot-spot monitoring, such as its ThermAsset monitor, released just last year", added Edwin Oh, Luxtron's CEO.
"As a result, we have been able to lower the effective cost of installing these systems by as much as 40%, making it economically viable for utilities to derive the benefits of fibre-optic technology on their smaller, workhorse transformers".
Luxtron hot-spot monitors enable direct, real-time, accurate measurement of transformer winding temperature, providing valuable input to calibrate thermal models and enable dynamic load control.
Unlike conventional winding temperature indicators that 'infer' the hot spot by measuring top or bottom oil temperature, the drift-free, calibration-free nature inherent in the Fluoroptic technology makes these systems ideally suited for use in transformers.
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