Well this seems like a basic principle, yet I can't seem to get it. (We're expect to "know" this already).
In a three phase situation I'm given a source voltage of 230V. - So the waveform of each of the phases would be: \$ v_s = \sqrt2 \cdot 230 \cdot \sin(\omega t + \theta_i)\$
Where \$\theta_i\$ is \$0, \tfrac{2}{3} \pi, \tfrac{4}{3} \pi\$ for each phase.
So now I could calculate the line to line voltage by the formula: $$v_{ll} = 2 \cdot \left ( \sqrt2 \cdot 230 \cdot \sin(\tfrac{2}{3} \pi) \right)$$
Is this correct?
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