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Finding Fault Location on Overhead Transmission Lines

Finding Fault Location on Overhead Transmission Lines

B Suresh Kumar; Chityala Venkatesh; Nakirekanti Pavani

LAP Lambert Academic Publishing
2020
pokkari
Identification of the fault location and correction of fault area unit vital in grid. This method improves the steadiness and accelerate the restoration of the system. This approaches for locating fault location area tavelling wave-based approach and impedance measurement based approach which ends up in complexness, expensive, non-homogeneity and unacceptable errors. during this paper fault location on overhead conductor mistreatment magnetoelectric machine resistive sensing element technique is planned. during this field is measured with the magnetoelectric machine resistive magnetic sensing element that is a lot of sensitive and low price. The collected knowledge may be used for distinguishing the fault sort and site of fault inside a span. Simulation were performed on typical tower configuration. The schematic diagram was developed mistreatment Simulink in matlab and kind of the fault may be detected by observant the waveforms obtained.
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Study of Thickness Distribution in the Warm Forming of Aluminium Alloy

Study of Thickness Distribution in the Warm Forming of Aluminium Alloy

P M S Hallika; Swadesh Kumar Singh; M Pavani

Lap Lambert Academic Publishing
2024
pokkari
Aluminum although very ductile, but it is having very poor formability which restricts its use in most of the industrial applications which require forming e.g. automobile engineering. In recent years there is an effort to increase the temperature of the material before and during forming. Generally, in any operation large amount of time is consumed in trial and error method and there are high chances that the tools are to be redesigned whenever the desired products are not obtained. So, this trial and error method involves lot of experience and loss of valuable time. To overcome this problem, process modeling by computer simulation called Finite Element Method (FEM) has been introduced which stimulates the actual process and thus saves time and money. The FEM model is constructed in LS-DYNA and after simulating the process results are compared with the experimental ones.
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Untersuchung der Dickenverteilung bei der Warmumformung von Aluminiumlegierungen

Untersuchung der Dickenverteilung bei der Warmumformung von Aluminiumlegierungen

P M S Hallika; Swadesh Kumar Singh; M Pavani

Verlag Unser Wissen
2024
pokkari
Aluminium ist zwar sehr dehnbar, l sst sich aber nur sehr schlecht umformen, was seine Verwendung in den meisten industriellen Anwendungen, die eine Umformung erfordern, z. B. im Automobilbau, einschr nkt. In den letzten Jahren hat man sich bem ht, die Temperatur des Materials vor und w hrend der Umformung zu erh hen. Im Allgemeinen wird bei jedem Vorgang viel Zeit mit der Versuch-und-Irrtum-Methode verbraucht, und es besteht eine hohe Wahrscheinlichkeit, dass die Werkzeuge neu entworfen werden m ssen, wenn die gew nschten Produkte nicht erreicht werden. Diese Versuch-und-Irrtum-Methode ist also mit viel Erfahrung und dem Verlust von wertvoller Zeit verbunden. Um dieses Problem zu berwinden, wurde die Prozessmodellierung durch Computersimulation, die sogenannte Finite-Elemente-Methode (FEM), eingef hrt, die den tats chlichen Prozess stimuliert und somit Zeit und Geld spart. Das FEM-Modell wird in LS-DYNA erstellt und nach der Simulation des Prozesses werden die Ergebnisse mit den experimentellen verglichen.
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Étude de la distribution de l'épaisseur dans le formage à chaud de l'alliage d'aluminium

Étude de la distribution de l'épaisseur dans le formage à chaud de l'alliage d'aluminium

P M S Hallika; Swadesh Kumar Singh; M Pavani

Editions Notre Savoir
2024
pokkari
Bien que tr s ductile, l'aluminium a une tr s mauvaise aptitude au formage, ce qui limite son utilisation dans la plupart des applications industrielles qui n cessitent un formage, par exemple dans l'industrie automobile. Ces derni res ann es, des efforts ont t faits pour augmenter la temp rature du mat riau avant et pendant le formage. En g n ral, dans toute op ration, on passe beaucoup de temps faire des essais et des erreurs et il y a de fortes chances que les outils doivent tre redessin s chaque fois que les produits souhait s ne sont pas obtenus. Cette m thode d'essai et d'erreur implique donc beaucoup d'exp rience et une perte de temps pr cieux. Pour r soudre ce probl me, la mod lisation du processus par simulation informatique, appel e m thode des l ments finis (FEM), a t introduite pour stimuler le processus r el et ainsi conomiser du temps et de l'argent. Le mod le FEM est construit dans LS-DYNA et, apr s simulation, les r sultats du processus sont compar s aux r sultats exp rimentaux.
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Estudo da distribuição de espessuras na conformação a quente de ligas de alumínio

Estudo da distribuição de espessuras na conformação a quente de ligas de alumínio

P M S Hallika; Swadesh Kumar Singh; M Pavani

Edicoes Nosso Conhecimento
2024
pokkari
O alum nio, embora muito d ctil, tem uma formabilidade muito fraca, o que limita a sua utiliza o na maioria das aplica es industriais que exigem a conforma o, por exemplo, na ind stria autom vel. Nos ltimos anos, tem-se procurado aumentar a temperatura do material antes e durante a conforma o. Geralmente, em qualquer opera o, consome-se uma grande quantidade de tempo no m todo de tentativa e erro e h grandes probabilidades de as ferramentas terem de ser redesenhadas sempre que os produtos desejados n o s o obtidos. Assim, este m todo de tentativa e erro envolve muita experi ncia e perda de tempo valioso. Para ultrapassar este problema, foi introduzida a modela o do processo por simula o inform tica, designada por M todo dos Elementos Finitos (MEF), que estimula o processo real, poupando assim tempo e dinheiro. O modelo FEM constru do em LS-DYNA e, ap s a simula o do processo, os resultados s o comparados com os experimentais.
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