If single phase voltage level is 230V than why three phase voltage level is no

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If single phase voltage level is 230V than why three phase
voltage level is not 660V ?, but it is only 440V.

Question Posted / shah_saurin2002

16 Answers
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If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is ..

Answer / mukesh

it is not a three phase voltage is three times the single phase voltages. we only take a voltage between two points not between three points. so when we measure voltage between two points in single phase system there is one of its point at higher potential and other is at zero potential(reference point). but in the three phase system if we take a reference point and measure voltage between them (between reference and higher potentials) and adds up algebraically we got a voltage 400 v. if we also measure voltage between two higher potential we got 400v due to the wave forms of phases reaches at potentials according to time. but this not happens that both the voltage reaches at higher vale in the same instant. so its never been 660 v....

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If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is ..

Answer / rajakumar

11 questions answer 440v correct

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0 Yes

1 No

If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is ..

Answer / percy

3 phase doesnot means 230+230+230

in three phase three lines carry same voltage but displaced
in time by 120* that is we obtain V (L-L)=400kv

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25 Yes

37 No

If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is ..

Answer / dragon heart

because of the power generated from the 3 phase transformer
connected in Y

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5 Yes

22 No

If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is ..

Answer / hemantpandey

because
single phase =phase voltage /square root of three
and the other reason is that the two terminals

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8 Yes

26 No

If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is ..

Answer / kumar

our measering meater is have only two terminal that y 400v

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14 Yes

44 No

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