2-B
swer All the Questions:
- In three phase balanced \Delta-Y system, if
$V_{AN}$=200 ,positive sequence ,then the line
voltage
$V_{ca}$ is..
$V_{CN}$=..
- In Y-\Delta three phase system, unbalanced load
,the line voltages at the load are also
unbalanced....................(choose
true or false).
- If Load currents in three phase Y-\Delta system are
$I_{AB}$= 12 $I_{BC}$= 12 ,$I_{CA}$=5 , then
the Load is
the neutral current $I_n$=..
?- In three phase balanced Y-\Delta system if the
transmission line has line current $I_a$=3 Arms,
and has impedance $Z_L$=0.2+j0.2\Omega, then
the power loss of the system is
If $V_{an}$=220V rms, then the
efficiency=.