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WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,

Answers were Sorted based on User's Feedback



WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,..

Answer / nallakumar

The starting time motor taken high starting current that
star connection is must need after normal running condition
changed to delta connection.

Is This Answer Correct ?    0 Yes 3 No

WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,..

Answer / bijay kuma bhoi

in star connection current is always same in starting and
running period ,so we can use fixed class of insulation
cable,but in case of delta this is not possible due to
changes of current .so all ht motors are conncted in star .

Is This Answer Correct ?    4 Yes 15 No

WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,..

Answer / ankit

In star connection line voltage is root 3 times then that
of phase voltage while in delta line current is root 3
times then that of phase current.

so if we use delta then current will be less than line
current but voltage will be 6.6kv this will led to high
insulation.

if we use star connection then voltage measured will be
line voltage divided by root 3 thus insulation required is
less.

Is This Answer Correct ?    0 Yes 13 No

WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,..

Answer / gajanan

we do not have any xmer having ratio 11/6.6 kv. so for
motor of 6.6 kv in star conneced we can use 11 kv supply.
bcoz in star vline=root 3 of v hase

Is This Answer Correct ?    4 Yes 23 No

WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,..

Answer / ashish

because neutral point is available in star
connection,whereas no neutral point in delta...

Is This Answer Correct ?    6 Yes 42 No

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