Mute
ELETRICITY - O CANAL
Será que um disjuntor motor protege contra falta de fase? Essa é uma dúvida comum entre profissionais da área elétrica, que acreditam que esse dispositivo substitui apenas o rele de sobrecarga tradicional. Vamos analisar juntos esse cenário. Para acionamento e proteção completa de um motor trifásico, além do contator, precisamos de um disjuntor para o curto circuito, um relé para sobrecarga e outro para falta de fase. Em casos onde precisamos de maior sensibilidade, o relé de sobrecarga ainda é...
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