Matches in SemOpenAlex for { <https://semopenalex.org/work/W2971399819> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W2971399819 abstract "The Nasiriyah thermal power plant considered to be within the aging stations of the Iraqi electric power grid which reflected on the performance of operating transformers. Recently, several cases of repeated transformer damage have been reported, which reinforce the need to investigate the causes behind that since the transformer ultimate importance in reliable power supplies for the consumers. As a result of that a priority of investigation have grown to calculate the remaining default life of transformer oil due to its vital role in the processes of insulation and cooling.In this work, the lifetime for transformer oil of the Nasiriyah thermal power plant (15.75 kV/ 400 kV) four transformer that are similar in specification and different in loading values has been investigated. Some oil samples was drawn from the oil used in each transformer in order to conduct measuring tests of variables values (flashpoint, breakdown voltage, viscosity, acidity). All tests have been carried out at high voltage and chemical laboratories. The obtained result showed a widely change in the acidity values, coupled with its entry into bad oil classification, while it shows acceptable change with standard specification for remaining variables. An acidity limit of (0.3 mg KOH/g oil) has been recorded as a major variables to calculate oil lifetime according to the international (IEC-296) standard. Technique for acceleration test has been developed and employed to develop oil lifetime equation by testing the oil samples in high varying temperatures (130 °C, 140 °C, 150 °C) with continuous monitoring of the acidity limit.The obtained results show the validity of these proposed equations to calculate the oil lifetime after their compliance with the four transformer loading rates. The results also show a presence of a serious decline in oil life time at the prevailing operating temperatures for all transformers especially for the highest load rate transformer (AT4) for range between (50 °C- 60 °C). For example, the lifetime prediction of transformer (AT4) a temperature of 60 °C is 3.5 years. A set of recommendations are suggested in order to evade transformer failure. It has been concluded that the oil used in transformer (AT4) should be replaced. Extra oil should be added to (AT1, AT2, AT3) transformers." @default.
- W2971399819 created "2019-09-12" @default.
- W2971399819 creator A5032588757 @default.
- W2971399819 creator A5070366260 @default.
- W2971399819 creator A5073621118 @default.
- W2971399819 creator A5091210137 @default.
- W2971399819 date "2019-05-01" @default.
- W2971399819 modified "2023-09-27" @default.
- W2971399819 title "Predict the Lifetime for (15.75 kV/400 kV) Transformers Oil of NASIRIYAH Power Plant" @default.
- W2971399819 doi "https://doi.org/10.31663/tqujes.10.1334(2019)" @default.
- W2971399819 hasPublicationYear "2019" @default.
- W2971399819 type Work @default.
- W2971399819 sameAs 2971399819 @default.
- W2971399819 citedByCount "0" @default.
- W2971399819 crossrefType "journal-article" @default.
- W2971399819 hasAuthorship W2971399819A5032588757 @default.
- W2971399819 hasAuthorship W2971399819A5070366260 @default.
- W2971399819 hasAuthorship W2971399819A5073621118 @default.
- W2971399819 hasAuthorship W2971399819A5091210137 @default.
- W2971399819 hasBestOaLocation W29713998191 @default.
- W2971399819 hasConcept C116915560 @default.
- W2971399819 hasConcept C117323899 @default.
- W2971399819 hasConcept C119599485 @default.
- W2971399819 hasConcept C127413603 @default.
- W2971399819 hasConcept C165801399 @default.
- W2971399819 hasConcept C171146098 @default.
- W2971399819 hasConcept C181335627 @default.
- W2971399819 hasConcept C39432304 @default.
- W2971399819 hasConcept C50177738 @default.
- W2971399819 hasConcept C66322947 @default.
- W2971399819 hasConcept C77595967 @default.
- W2971399819 hasConcept C9121194 @default.
- W2971399819 hasConceptScore W2971399819C116915560 @default.
- W2971399819 hasConceptScore W2971399819C117323899 @default.
- W2971399819 hasConceptScore W2971399819C119599485 @default.
- W2971399819 hasConceptScore W2971399819C127413603 @default.
- W2971399819 hasConceptScore W2971399819C165801399 @default.
- W2971399819 hasConceptScore W2971399819C171146098 @default.
- W2971399819 hasConceptScore W2971399819C181335627 @default.
- W2971399819 hasConceptScore W2971399819C39432304 @default.
- W2971399819 hasConceptScore W2971399819C50177738 @default.
- W2971399819 hasConceptScore W2971399819C66322947 @default.
- W2971399819 hasConceptScore W2971399819C77595967 @default.
- W2971399819 hasConceptScore W2971399819C9121194 @default.
- W2971399819 hasLocation W29713998191 @default.
- W2971399819 hasOpenAccess W2971399819 @default.
- W2971399819 hasPrimaryLocation W29713998191 @default.
- W2971399819 hasRelatedWork W1548859257 @default.
- W2971399819 hasRelatedWork W1552671256 @default.
- W2971399819 hasRelatedWork W1993789775 @default.
- W2971399819 hasRelatedWork W2001941562 @default.
- W2971399819 hasRelatedWork W2043032216 @default.
- W2971399819 hasRelatedWork W2113856444 @default.
- W2971399819 hasRelatedWork W2128213230 @default.
- W2971399819 hasRelatedWork W2146416596 @default.
- W2971399819 hasRelatedWork W2305614989 @default.
- W2971399819 hasRelatedWork W2374770648 @default.
- W2971399819 hasRelatedWork W2543782793 @default.
- W2971399819 hasRelatedWork W2775632705 @default.
- W2971399819 hasRelatedWork W2782407943 @default.
- W2971399819 hasRelatedWork W2899879631 @default.
- W2971399819 hasRelatedWork W2906699412 @default.
- W2971399819 hasRelatedWork W2924610365 @default.
- W2971399819 hasRelatedWork W2990794711 @default.
- W2971399819 hasRelatedWork W3010035897 @default.
- W2971399819 hasRelatedWork W3018399397 @default.
- W2971399819 hasRelatedWork W3134472053 @default.
- W2971399819 isParatext "false" @default.
- W2971399819 isRetracted "false" @default.
- W2971399819 magId "2971399819" @default.
- W2971399819 workType "article" @default.