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Masters Thesis | Electrical Power Engineering | Uganda | Volume 12 Issue 10, October 2023

Quantifying the Level of Exposure of Uganda?s 132kV Network to Transient Faults

Kajumba Sandra Matty | Jane Namaganda Kiyimba | Milton Edimu

Abstract: Uganda's power system has grown over the years with an increase in the transmission line network and generation capacity. Conversely, over time, the transmission grid has experienced a number of transient faults with some resulting in cascading failures and total system collapse, thus the need to quantify the level of exposure of the transmission network to transient faults. This paper presents a study done to quantify the level of exposure of Uganda's 132kV transmission network to transient faults. The 132kV network is modelled in DIgSILENT software and the quantification is done based on resilience metrics that have a high maturity index. These include: generation capacity lost, the value of the lost generation, the quantity of the load lost and the value of the load lost. The study then proposes strategies that will reduce the level of exposure and a quantification of the new level of exposure of the transmission network is undertaken. The results of this study will aid in the planning, operation, control and optimization of Uganda's 132kV transmission network to reduce the level of exposure of the network to transient faults and prevent the negative cascading impacts of transient faults.

Keywords: Exposure, Fault, Metrics, Transient

Edition: Volume 12 Issue 10, October 2023,

Pages: 361 - 366