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Home / Questions / A 3 phase load of 2000 kVA O8 f is supplied at 66 kV 60Hz by means of a 33 kV transmission...

A 3 phase load of 2000 kVA O8 f is supplied at 66 kV 60Hz by means of a 33 kV transmission line 20 km long and a 51 transformer The resistance per km of each conductor is

A 3-phase load of 2.000 kVA. O.8 ?.f. is supplied at 6.6 kV. 60-Hz by means of a 33 kV transmission line 20 km long and a 5:1 transformer. The resistance per km of each conductor is 0.4 O and reactance of 0.5 O The resistance and reactance of the transformer primary are 7.5 O and 13.2 O, respectively, whilst resistance and reactance of the secondary are 0.35 2 and 0.65 S2. respectively (a) Draw the one-line diagram of the system. (b) Draw the equivalent single-phase circuit diagram. (c) Determine the voltage necessary at the sending end of the transmission line if 6.6 kV is maintained at the load-end (d) Determine the sending-end power factor (e) (i) Determine the total real power losses. (ii) Determine the total real power at receiving end (iii) Determine the efficiency of the transmission line

 

Jul 26 2020 View more View Less

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