Cotrim_Cap13_ok.ppt
Transcript of Cotrim_Cap13_ok.ppt
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 1
Capítulo 13
Dimensionamento
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13.1 — Circuitos de motores
• Introdução Cargas industrias e similares
Cargas residenciais e comerciais
• Partida de Motores Trifásicos de Gaiola Partida direta
Partida indireta Chave estrela-triângulo
Chave compensadora
Sistema de partida suave(soft-starter )
• Dimensionamento de Condutores Capacidade de condução de corrente Queda de tensão
• Proteções Proteção contra correntes de sobrecarga
Proteção contra correntes de curto-circuito
Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 2
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 3
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 4
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 5
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 6
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13.2 — Circuitos que não contêm motores
• Apresentação
• Cálculos preliminares : potências e correntes
• Pontos de distribuição e circuitos de distribuição
• Critério da capacidade de condução de corrente
• Critério da queda de tensão• Critério de proteção contra correntes de sobrecarga
Expressões
Tabelas e gráficos
• Critério de proteção contra correntes de curto circuito Expressões
Tabelas e gráficos
• Seções dos condutores neutro e de proteção
• Critérios de proteção contra contatos indiretos
Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 12
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 13
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 14
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 15
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 16
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 18
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 19
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 20
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 21
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 22
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 23
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 24
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 25
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 26
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 27
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 28
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 29
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13.3 — Critério econômico paradimensionamento das linhas áreas
• Introdução
•
Equacionamento básico• Cálculos simplificados
Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 30
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 31
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Instalações elétricas 5a ediçãoCotrim © 2008 by Pearson Education slide 33
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