Fault detection and location on 22kV and 11kV distribution feeders

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Orlowski, Ryszard (2006) Fault detection and location on 22kV and 11kV distribution feeders. PhD thesis, Victoria University.

Abstract

AGL Electricity (AGLE) is one of the four privately owned electricity distribution companies in the Australian State of Victoria. Due to its operations in a regulated environment, AGLE's objective is to meet the distribution network performance standards set by the Victorian government's Essential Services Commission (ESC). Two performance measures are of major importance: average minutes off supply per customer and average number of intermptions per customer. These performance measures are adversely impacted by unplanned outages caused by faults occurring mainly on overhead distribution feeders. To improve these two performance measures, there has been a need to implement a scheme on AGLE's overhead distribution network that would contain long term effects of a fault within the feeder section that directly experienced the fault, leaving the remaining feeder sections and their customers on supply. To achieve this goal a means of fault detection and location, augmented by automatic isolation of the faulty feeder section, is required. To that extent, AGLE was faced with a dilemma presented by typical fault detection and location scheme applications on complex distribution networks, i.e. reliable fault location resolution versus affordable implementation and maintenance costs. This dilemma was resolved through the extensive feasibility study carried out by the author of this thesis.

Item type Thesis (PhD thesis)
URI https://vuir.vu.edu.au/id/eprint/15660
Subjects Current > FOR Classification > 0906 Electrical and Electronic Engineering
Historical > Faculty/School/Research Centre/Department > School of Engineering and Science
Keywords Australian Gas Light Company, Electric power distribution, Victoria, Electric fault location, faults, fault detection
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