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Distribution Reliability Improvement through Optimal Location of Load Break Switches in 33 kV Network


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Prof Ranjit Perera

Date and Time

30 January 2014 - 17:30-19:00


Colombo 01, Sri Lanka - icon_popup  (See map)


Organised by the Sri Lanka local network.

About this event

Distribution network is responsible for supply interruptions in an electricity supply system. This is internationally the case due to the more exposed nature of the distribution lines which are mostly of overhead type going through different zones like vegetated areas, coastal areas, urban areas, flat fields or hilly areas. The causes for failure as well as the failure frequency differ from one zone to the other. In Sri Lanka there are 33 kV lines of total length 26,053 km (2012 CEB data) spread all over the country going through different landscapes. The lines are all radial and a failure at the beginning of the line lead to supply interruption for all the connected customers. However, a failure towards the end of the line if properly managed would interrupt only a section of the customers.

This paper presents a method to decide on the best number of load break switches and the optimal location of each of the switches considering nature of the different zones the line is going through and the distribution of the customers the line is serving.


17.00-17.30: Event Registration

17.30-19.00: The Lecture

19.00: Conclusion


Non-members will be charged at Rs.1,500/- per head


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