Three Complex Projects - NZ
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A new tee connection into a new 110/220kV transformer extension at the substation adjacent to existing line.
General Scope:
Creating A Design Criteria Document
Geotechnical Investigation Recommendations And Design Parameter Selection.
Design Of 3 Bored Pile Pole Foundations And A Raft Foundation For A Hard-Tee Lattice Structure.
Design Of A 3-Pole Structure.
Attachment Hardware Selection.
Line Modeling With PLS-CADD CAD.
Pole Design With PLS-POLE.
Tower Design And Structural Checks Of Existing Towers With PLS-TOWER.
Structural Design For Tee-Off Earthwire Connections.
Post Insulator Connection Design To Crossarms And Structural Checks.
Substation Gantry Capacity Checks.
Foundation Assessment Of Back And Ahead Structures.
Construction And Maintenance Loading Checks.
Internal, External Clearance, And Blowout Assessments.
Constructability Review.
Scored Workshop.
Creating Inspection Test Plans For Construction QA.
Produce Detailed Design Implementation Report (DIR)
As-build Construction Works.
220kV Hard Tee Connection - Line Deviation - Grid Injection Point - Double Circuit - From Concept to Construction
220kV Line Diversion to Substation - From Concept to Construction
After a series of cable faults in a grid upgrade project, a temporary line diversion of the existing line to a substation was identified as the only practical mitigation option due to security concerns. The project had a very short timeline because of the urgent need for cable repairs, so the scope was developed progressively as needs became clear.
General Scope:
Site Visit for Line Route Selection.
Identify the optimal route to connect the line to the substation, considering multiple options in PLS-CADD.
Minimize the number of affected landowners in the route selection.
Pole Centre Peg Site Visit
Construct a new gantry bay in the substation for the line connection.
Collaborate with stakeholders (property, environmental, ecological, Iwi, etc.) and provide necessary information for project progression.
Utilize a 220kV duplex Zebra ACSR line.
Employ standard pole suite and available stock where possible by using PLS-POLE.
Finalize pole procurement within one week of project kick-off to meet delivery timelines.
Arrange and obtain a ground survey for the proposed line area.
Ensure the deviation line can connect and switch between either circuit of the line.
Install twin 7/3.71 SC/AC earthwires for at least 1km from the substation.
Avoid strain converting on line tower if possible.
Gather necessary geotechnical information.
Produce Detailed Design Implementation Report (DIR)
As-build Construction Works.
220kV Reconductoring in Urban Areas - Thermal Upgrade - From Concept to Construction - Engineering Excellence Awards Project
Reconductoring design of 220kV lines and upgrade to existing Goat ACSR/GZ at 75° maximum operating temperature from Curlew ACSR/TWAC at 54°C. Both lines sections are located in urban areas with large amounts of residential underbuild, undercrossing distribution lines and road crossings, including four major road crossings in each line.
General Scope:
Creating A Design Criteria Document.
Strain Conversion Design of Suspension Structures.
3 Parallel Body Extension Design to mitigage the external clearances.
Floating Strain Conversion of Suspension Structures.
Strengthening Design on Existing Structures.
Strain Plate replacement Design.
Foundation Strengthening Design.
Cable Catenary Support System Design.
Structural loading assessment in PLS-TOWER.
Populate PLS-CADD model with site-specific towers.
Update standard insulator set drawings with Curlew components.
Produce required electrical clearance diagrams.
Produce earthworks rectification drawing.
Foundation design assessment.
Produce construction packages for enabling works construction.
Produce Detailed Design Implementation Report (DIR).
As-build Enabling Works Construction.
