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EdsonEletric
modified 7 years ago

Three-Phase Star-Star and Star-Delra sets Redes Trifásicas Estrela-Estrela e Estrela-Delta

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Models of three-phase systems most commonly used in power machines and transmission lines. At the left Star-Star and at the right Star-Delta. The line and phase relations of voltage and current proportional between each other by a factor of sqrt(3) can be verified in accord to the theory of each set, including the phase shift of 30 degrees between phase and line voltage and current. Star-Star set, 127V RMS AC sources dephased in 120 degrees. Star-Delta set, 220V RMS AC sources dephased in 120 degrees. Modelos de redes trifásicas mais utilizados em máquinas de potência e linhas de transmissão. À esquerda Estrela-Estrela, à direita Estrela-Delta. As relações de tensão e corrente de linha e fase proporcionais entre si pelo fator raiz(3) podem ser verificadas de acordo com a teoria de cada uma das configurações, inclusive a defasagem pela análise fasorial em 30° entre as tensões e correntes de linha e fase de cada arrumação. Estrela-Estrela, fontes CA de 127V RMS defasadas em 120° entre si. Estrela-Delta, fontes CA de 240V RMS defasadas em 120° entre si.
published 7 years ago

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