¿Cuál de las siguientes afirmaciones es verdad en lo que respecta a transformadores de potencial?
a. Sólo se venden de aceite.
b. Normalmente el valor nominal de kVA del secundario es superior a los 5 kVA.
c. El secundario de un transformador de potencial siempre se conecta a través de las líneas de electricidad principales.
d. Son transformadores monofásicos.
d. Son transformadores monofásicos.
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