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Three-Phase Systems in Power Applications - Engineering

Q1:

In a Y-connected source feeding a -connected load,

A each phase of the load has one-third of the full line voltage across it

B each phase of the load has two-thirds of the full line voltage across it

C each phase of the load has the full line voltage across it

D
each phase of the load has a voltage across it equal to

ANS:C - each phase of the load has the full line voltage across it

After voltage generated by star connection, the value which appear across transmission line is equal to the voltage across each phase (load) of delta connection.