2005
DOI: 10.1002/etep.59
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Evaluation of transformer overloading capability

Abstract: SUMMARYThe evaluation of transformer overload capabilities definitely leads into complex variables affecting the functional life of the power and distribution transformer. The combined effect of thermal overloads, mechanical stresses due to transient over-voltage and other parameters relating to the transformer components other than windings must be taken into account. A transient analysis and temperature rise programme is implemented on the information system.

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Cited by 11 publications
(7 citation statements)
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References 18 publications
(21 reference statements)
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“…Furthermore, the DSSC modules will handle extra duties if are enhanced with supplementary controllers. Previously, the authors precisely clarified the ability of the DSSC in mitigating the adverse oscillation namely LFO and SSR with CDCs [26][27][28]. So, this study focuses on designing a FLBDC which will be supplemented to the traditional controller of the DSSC in order to alleviate the SSR.…”
Section: Controller Design For Ssr Mitigationmentioning
confidence: 99%
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“…Furthermore, the DSSC modules will handle extra duties if are enhanced with supplementary controllers. Previously, the authors precisely clarified the ability of the DSSC in mitigating the adverse oscillation namely LFO and SSR with CDCs [26][27][28]. So, this study focuses on designing a FLBDC which will be supplemented to the traditional controller of the DSSC in order to alleviate the SSR.…”
Section: Controller Design For Ssr Mitigationmentioning
confidence: 99%
“…The distributed concept of the DSSC provides much lower cost and higher reliability than the SSSC, but has the same capability as the SSSC. Quite few papers have attempted the modeling and interrogating of the D-FACTS capabilities, for example, in [26][27][28] authors proposed low frequency oscillation damping, Transient Stability Enhancement and the Sub-Synchronous Resonance alleviation with the DSSC. In [28] the authors have proposed a conventional supplementary damping controller for the DSSC to mitigate the SSR and the damping controller parameters have been obtained with trial and error method.…”
Section: Introductionmentioning
confidence: 99%
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“…In Figure 2 an alternative basic thermal diagram of oil transformers is represented, as proposed in [31], where a cross section of an oil transformer is shown.…”
Section: Transformer Thermal Diagramsmentioning
confidence: 99%
“…That is why it is important to know the hot-spot temperature at every moment during real transformer operations under the conditions of variable loads and ambient air temperature [43][44][45][46]. The generally accepted relationship of thermal aging properties of insulation material is described by the Arrhenius reaction rate law [47]. The IEEE C57.91-1995 and IEC60076-Part.7 standards give an expression for the loss of life of mineral-oil-cooled power distribution transformers [48][49][50].…”
Section: Modeling and Verification Of The Algorithmmentioning
confidence: 99%