WorksheetsBalanced Three Phase System
Total questions: 11
Worksheet time: 6mins
In three phase system, the windings are displaced at __________degree from each other.
90
180
120
360
Which is an advantage of single phase system
High starting torque
high power output
constant output
low cost
In three phase star connection , the line voltage
is equal to phase voltage
is equal to line current
is equal to 3 Vph
is equal to phase current
In delta connection, line voltage is equal to
line current
phase current
phase voltage
none of above
In star connection, line current is
equal to phase current
equal to phase voltage
equal to line voltage
none of above
In delta connection, line current is equal to
phase current
3 × phase current
phase voltage
none of above
The star connected system is a
three phase three wire system
two phase three wire system
two phase two wire system
three phase four wire system
which three phase connection has a common point called neutral
a) star b) delta
Both a and b
only a
only b
none of the above
what is a balanced load
the weight of the load on all phases are equal
there will be only two phases
there will be only resistance
the impedance of all phases are equal
The line voltage in three phase system is
voltage between two lines
voltage across one phase and nuetral
all of above
none of above
All lighting loads are
delta connected
star connected
star or delta connected
none of above
