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Hello,

The DC line is modelled using an equivalent-T network with the parameters R=2.5 ohm C=26 uF and L=0.5965 H.

What is the equivalent length for these parameters? or How to calculate the line length with these parameters?

Best Regards.

The DC line is modelled using an equivalent-T network with the parameters R=2.5 ohm C=26 uF and L=0.5965 H.

What is the equivalent length for these parameters? or How to calculate the line length with these parameters?

Best Regards.

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Open Jul 24, 2019 - 08:00 AM

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I think you are referring to the Cigre Benchmark Model of HVDC system. The reactance value is that of a smoothing reactor installed on the cable terminals and not the reactance of line. Considering that, the line length of 5 ohm resistance (2.5+2.5 ohm in series) can be calculated using R=pho*L/A. Where, A is the area of cross section of the conductor. pho is the resistivity of conductor (for copper it is 1.72E-8 ohm.m).

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