What are the advantages of three-phase systems compared to single-phase systems? a) Three-phase systems are cheaper to implement than single-phase ...
What are the advantages of three-phase systems compared to single-phase systems?
a) Three-phase systems are cheaper to implement than single-phase systems.
b) Three-phase systems have lower losses than single-phase systems.
c) Three-phase systems are more efficient than single-phase systems.
d) Three-phase systems are more reliable than single-phase systems.
a) None of the items is correct.
b) Only item b is correct.
c) Items b and c are correct.
d) Items b, c, and d are correct.
a) Three-phase systems are cheaper to implement than single-phase systems.
b) Three-phase systems have lower losses than single-phase systems.
c) Three-phase systems are more efficient than single-phase systems.
d) Three-phase systems are more reliable than single-phase systems.
a) None of the items is correct.
b) Only item b is correct.
c) Items b and c are correct.
d) Items b, c, and d are correct.
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Ed 
A alternativa correta é a letra d) Items b, c, and d are correct. Os sistemas trifásicos apresentam diversas vantagens em relação aos sistemas monofásicos, como: - Menores perdas de energia elétrica; - Maior eficiência energética; - Maior capacidade de transmissão de energia elétrica; - Maior estabilidade de tensão; - Maior confiabilidade e segurança; - Menor custo de instalação e manutenção em longas distâncias.
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