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Engineering and Comp Sci Homework Help
Calculate the effective values in this 3-Phase Circuit
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[QUOTE="diredragon, post: 5929474, member: 567401"] [h2]Homework Statement [/h2] [ATTACH=full]219142[/ATTACH] Given the known quantities ##R, C, L##, ##k##, and the effective values of the voltages ##E_1=E_2=E_3=E## , ##w = \frac{1}{\sqrt{LC}}## of the direct-symmetrical 3-Phase system find the expressions for the effective values of ##U_{12}##, ##U## and ##I## and calculate the active power ##P## of the 3-Phase generator. [h2]Homework Equations[/h2] 3. The Attempt at a Solution [/B] Let me write down the solutions to this problem so we know what to aim for when solving it: [ATTACH=full]219143[/ATTACH] I feel kinda overwhelmed to not even know where to start from. I think can express the current ##I_2## of the generator ##E_2## in terms of the total impedance of the middle part and the voltage ##U##. [ATTACH=full]219144[/ATTACH] ##U=jwI_1L+jwkLI'_2 => I'_2 = \frac{U}{jwkL}## since ##I_1=0##. The ##Z_e## in the diagram equals ##Z_e = jwL||\frac{1}{2jwC} = -jwL##. The current ##I'_2 = I_2\frac{Z_e}{Z_e+L} => I_2 = \frac{U(k-jw)}{kLw^2}## and this is all i can get out of this first part. I could also make the left part like this: [ATTACH=full]219145[/ATTACH] But i don't see how that would help. What am i missing? Is there a course of action to take that i don’t see here? [/QUOTE]
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Calculate the effective values in this 3-Phase Circuit
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