why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2

why in three phase 440 circuit in all phase current is
almost equal L1-35 A,L2-34 A ,L3-31 A but in nutral when i
check with clamp meter it shows 25 A?

Question Posted / asifktpk

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why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2-34 A ,L3-31 A but i..

Answer / kiran

Principle is vector summation.
Ir + Iy + Ib = 0

and not arithmatic summation.

Since neutral current is substantial 25A, the three RYB
vectors are not 120 degree apart. Means powewr factor in
each phase differs drastically. Thats why though there is
no much difference in RYB current, neutral has substantial
current.

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18 Yes

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why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2-34 A ,L3-31 A but i..

Answer / amit

In balance condition neutral current is zero. Flux in all
three phases are in addative nature.
flux in R + flux in Y + flux in B = 0(zero)
but in your case it is different because of differnt
currnet in phases, which will affect and cause a unbalance
condition, will produce a flux in neutral and current
flowing through neutral. But in your case it is 25A which
is to much unbalance condition.
Take once again reading.

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why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2-34 A ,L3-31 A but i..

Answer / anil

1)your point of measuring to conder again

2)check whether nutral joint is given to another load which
you not considering for this load

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why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2-34 A ,L3-31 A but i..

Answer / rajesh siwach

valve of currents and voltages depend upon the manner in
which the 3 phase system connected,either in star
connection or in delta connection

Is This Answer Correct ?

1 Yes

4 No

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