Characteristics Of The Delta Connection Flashcards
If the magnitudes of the phase voltages in a three-phase, three-wire, delta-connected system are 240V, what are the magnitudes of the line voltages?
240V
If the magnitudes of the phase currents in a three-phase, three-wire, balanced delta system are 200A, what are the magnitudes of the line currents?
346A
In a purely resistive, balanced, delta-connected system, what is the magnitude of the phase angles between the line voltages and the line currents?
30°
What is the mathematical relationship between the line currents and the phase currents in a delta connected system?
I(line) = √3 x I(phase)
Are three-wire, delta systems normally grounded or ungrounded?
Ungrounded
In a three-phase, four-wire, grounded ∆ system, which phase conductor is required to be the one with the higher voltage to ground?
Phase A
Is it permissible to put the grounded conductor and the high leg of a three-phase, four-wire, ∆ system in the same panel compartment?
No, the CEC requires that the high leg be separated from the grounded conductor