Three-Phase Systems in Power Applications - Engineering

Q1:

In a -connected source driving a -connected load, the

A load voltage and line voltage are one-third the source voltage for a given phase

B load voltage and line voltage are two-thirds the source voltage for a given phase

C load voltage and line voltage cancel for a given phase

D load voltage, line voltage, and source phase voltage are all equal for a given phase

ANS:D - load voltage, line voltage, and source phase voltage are all equal for a given phase

In a Delta/Delta Configuration (motor and transformer), meaning delta source & delta load. Line voltage and phase voltage are equal.