Compare star and delta connection. electrical engineering q a

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Compare star and Delta Connection.
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asked in Basic electrical and electronics engineering by Quiz
Compare star and Delta Connection.
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answered by Zeeshan
edited by Zeeshan
Sr.No. Star connection Delta connection
1. Star connection have a neutral or star point. Delta connection have no star or delta point.
2. Star connection do not form a close loop. Delta connection forms a close loop.
3.
One end of each three loads connected together and forms a
neutral and remaining three ends are taken out connection.
One terminal of load is connected to another terminal of load and
forms a closed loop and common ends are taken out for connection.
4. Line voltage (VL) = √3 Phase voltage (Vph) Line voltage (VL) = Phase voltage (Vph)
5. Line current (IL) = Phase current (IPH) Line current (IL) = √3 Phase current (IPH)
6.
Star connection can be use as 3 phase 3 wire system or 3
phase 4 wire system.
Delta connection can only be used as 3 phase 3 wire system.
7. Star connection is generally used in power transmission. Delta connection is generally used in power distribution.
8. Low insulation requires as phase voltage is low.
Heavy insulation is required as line voltage is equal to phase
voltage.
9.
Best answer
comment
answered by Zeeshan
Compare star and Delta Connection.
Compare Star and Delta Connection
comment
answered by Q&A
Parameter Star Connection Delta Connection
Basic
definition
One terminal of each of the three branches are
connected together to form a common point. Such a
connection is known as Star Connection
The three branches of the network are connected in such a way
that it forms a closed loop. Such a connection is known as Delta
Connection
Connection of
terminals
The similar ends of the three coils are connected
together to form a common point.
The end of each coil is connected to the starting point of the
other coil that means the opposite terminals of the coils are
connected together to form a closed loop.
Neutral point Neutral or the star point exists in the star connection. Neutral point does not exist in the delta connection.
Relation
between line
and phase
current
Line current is equal to the Phase current. Line current is equal to √3 times the Phase Current.
Relation
between line
and phase
voltage
Line voltage is equal to √3 times the Phase Voltage Line voltage is equal to the Phase voltage.
Diagram
comment
answered by Q&A
differentiation of star and delta connection