The theoretical maximum real power flowing through a lossless overhead transmiss

Question

The theoretical maximum real power flowing through a lossless overhead transmission line is proportional to the voltage of the transmission line. approximately proportional to the square of the voltage of the transmission line only dependent on the phase shift between the sending end and receiving end. For a long transmission line (longer than 320 km), its loadability is mainly limited by thermal rating of the conductors the maximum allowed voltage drop through the transmission line. the stability of the transmission line. Based on the St. Clare Curve shown in Figure P12, the line loadability of a 300-km, 500-kV transmission line with a surge impedance Z_c = 275 Ohm is 837 MW 909 MW 1363 MW

Explanation / Answer

real power depends upon phase shift between sending and receiving end , which is nothing but power factor angle

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