Terrestrial laser scanning for 3D zone substation modelling and safety clearances

Edwards, D. (2014) Terrestrial laser scanning for 3D zone substation modelling and safety clearances. [USQ Project]

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Abstract

Essential Energy is a State Owned Corporation (SOC) responsible for construction and maintenance of the electricity network in NSW. An important part of this network are Zone Substations which are primarily used to transform voltage levels and distribute the voltage at a useable level.

Construction and augmentation of Zone Substations requires accurate design drawings to enable upgrade and new installations of plant and equipment. Many of these Substations are ageing assets and do not have accurate design drawings of current equipment layouts.

For these sites the inaccuracies contained in old hand drawn general arrangement drawings does not provide a good basis from which to begin a design.

The purpose of this Dissertation aims to determine whether Terrestrial Laser Scanning technology could be used to scan existing Zone Substation sites for the purpose of 3D modelling and determining if the sites are compliant with current safety clearance standards.

Nevertire Zone Substation is located 100km’s west of the city of Dubbo and this site has been used for the purpose of this document to prove that Terrestrial Laser Scanning equipment can produce accurate 3D models which are able to be used for Zone Substation Design and safety clearance checks.

Nevertire Zone Substation was scanned on site with a high definition laser scanner and a 3D model produced in the form of a point cloud file. This point cloud file was then used to produce a 3D wireframe model which can be used for design purposes.

The point cloud file and wireframe model were checked for accuracy against on site measurements and both models produced extremely accurate results. These results were then compared directly with conventional survey measurements (already completed at Nevertire Zone Substation) to highlight the differing levels of accuracy available in the different data capture techniques.

Using the point cloud file of Nevertire Zone Substation the site was thoroughly analysed to ensure it was compliant with the current Essential Energy and Australian
Standards for electrical safety clearances. The Zone Substation lightning protection coverage was also modelled using the point cloud file and rolling sphere method.

Results and conclusions produced from the analysis clearly show that there are several existing areas within the Nevertire Zone Substation which do not comply with the required clearances specified by Essential Energy.
In addition to the results and conclusions a benefit analysis is provided to highlight the additional value that using this method of data capture has, over using conventional survey techniques.

The intention is that Essential Energy will be provided directly with all of the information and results developed throughout the writing of this document. Allowing further work to proceed will be based on decisions made by Essential Energy management on the value that this method will provide to the organisation.


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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Electrical engineering (Power) project.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Supervisors: Norman, Mark
Date Deposited: 09 Sep 2015 04:47
Last Modified: 04 Mar 2016 05:41
Uncontrolled Keywords: zone substation, laser scanning, (TLS), 3D modelling, point cloud, safety clearance, electricity network, voltage
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090607 Power and Energy Systems Engineering (excl. Renewable Power)
09 Engineering > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/27290

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