Sub:electrical distribution The distribution network shown in Figure below is to supply two factoriesA & B with load curves indicated in Fig. Assume that both factories havea lagging power factor of 0.8.a) Select the required sizes of transformers for substation supplyingboth factories such that in the case of a failure in one transformerthe overload on the remaining ones should not exceed 12%.b)Calculate the annual energy losses in the transformers. Assumingthat transformers are in operation continuouslyc) Select the required sizes of fuses to be installed at both sides oftransformers.d)Select the required size of the 11 kV, XLPE cable for section S1, ifthe cable is to be laid direct in ground with a maximum groundtemperature of 30° C.e) Calculate the maximum expected voltage drop in section S1.1400V11KV, XLPE CableMulti-Core CopperS4 KmS (KVA)S (KVA)400400300300-200200100100Time (hr)Time (hr)246.12186.121824Load curve of Factory (A)Load curve of Factory (B)

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The distribution network shown in Figure below is to supply two factories A & B with load curves indicated in Fig. Assume that both factories have a lagging power factor of 0.8. a) Select the required sizes of transformers for substation supplying both factories such that in the case of a failure in one transformer the overload on the remaining ones should not exceed 12%.

The distribution network shown in Figure below is to supply two factories A & B with load curves indicated in Fig. Assume that both factories have a lagging power factor of 0.8. a) Select the required sizes of transformers for substation supplying both factories such that in the case of a failure in one transformer the overload on the remaining ones should not exceed 12%.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.9P

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