- #1

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can any body please explain it???????

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- Thread starter FizixFreak
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- #1

- 154

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can any body please explain it???????

- #2

stewartcs

Science Advisor

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can any body please explain it???????

What do you find confusing about it? How they came up with the 400 volts?

CS

- #3

mgb_phys

Science Advisor

Homework Helper

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A single phase measured relative to the ground varies between 0 and about 325V - with an RMS value of 230V =peak voltage divided by root(2).

The maximum voltage difference between any two phases is about 400V = RMS voltage * root(3)

- #4

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the line voltage is the voltage "difference" of two phase voltages... that means one phase voltage should be reversed and added to another phase.. than u'll have 2x230xcos(30) as the line voltage ([tex]\approx[/tex]400).... (check for the attachment, then u'll get a better idea)

Last edited:

- #5

- 154

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the line voltage is the voltage "difference" of two phase voltages... that means one phase voltage should be reversed and added to another phase.. than u'll have 2x230xcos(30) as the line voltage ([tex]\approx[/tex]400).... (check for the attachment, then u'll get a better idea)

rookie question

how do you came up with 2(230)cos(30) and why 30????????

- #6

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