Test 2

It is made by connecting one end of each of the three-phase windings together.

• Delta Connection

• Star Connection

• Star-Delta Connection

• Forward-Reverse

It is made by connecting the starting to the finishing ends of the phases or the starting end of the first phase is connected to the finishing end of the second phase and so on (for all three phase) forming a close triangle.

• Star-Delta Connection

• Star Connection

• Delta Connection

• Alpha Connection

The voltage measured across a single winding of a three-phase star connection is?

• Phase current

• Phase voltage

• Phase power

• Line voltage

The voltage measured between the lines of a three-phase delta connection is known as?

• Line voltage

• Phase voltage

• Line current

• Phase current

What does DOL mean in motor control?

• Dive-On-Line

• Direct-On-Line

• DC-On-Line

• Delta-On-Line

In three-phase star connection supply the line voltage is equal to phase voltage.

line voltage = phase voltage

• False

• True

In three-phase balanced Delta connection, the three-line currents are equal in magnitude and differ in phase by 120°.

• True

• False

The formula for line current in three-phase delta connection

 IL = √3 IPh

• True

• False

In three-phase balanced star connection, the Neutral current is equal to 0.

• True

• False

In a delta connection, line voltage and phase voltage are the same.

• True

• False