Functional Efficacy of Omu-Aran 132/33kV Electricity Transmission Substation-Network Arrangement

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This is one in a series of need driven studies to evaluate the efficacy of power delivery of radial 132/33 kV substation-network arrangements under prevailing load conditions, which represents communities expansions and social developments. The specific condition of Omu-Aran 132/33 kV substation-network arrangement (SNA), which supplies electricity to 5 load-communities in 4 respective States with similar demand cultures, was examined. Outgoing 33kV Network lines (NLs) were designated according to the names of their respective termini-cities. The description of network elements obtained from the network control centres, and network parameters were evaluated using standard formulas. From time series logged data (2007-2010) at the SNA, the maximum power statistics were evaluated to define the peak load conditions on the NLs. The SNA was modelled mathematically for load flow computational experiments using, predominantly, Bus Admittance Matrix method. Efficacy of power delivery was analysed using, mainly, voltage and thermal capacity criteria. An analysis of the results established substantial and inadmissible voltage and power losses between substation and load-communities on the existing 33 kV network lines; efficient normal mode use of these lines requires implementation of drastic load shedding, network reconstruction or reinforcement by voltage and power saving requirements.

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100-107

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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