Blyth West substation is located near the Blyth township in South Australia and connected to the Snowtown Wind Farm (Stage 2) via a 275kV mono-pole overhead line.
The Blythe West substation was constructed as a three circuit breaker mesh bus arrangement allowing for a future upgrade to a full breaker and a half configuration over two diameters with relative ease.
The Blythe West substation construction involved:
The full design, procurement and construction of the 275kV network connection
The installation of 5kms of OPGW on the existing 275kV Pi Structured Para-Bungama overhead line which required structural upgrades to the affected Pi structures and the design and installation of a 275kV insulated lattice turn-in tower.
Deer Park Terminal Station is located in Ravenhall VIC which is approximately 30km west of Melbourne CBD.
CPP was appointed by TransGrid to construct the challenging 220kV/66kV Deer Park Terminal Station. The substation consisted of 2 off 220kV incomers, 2 off 275MVA Transformer, 6 off 66kV feeder bays, 2 off Capacitor Bank Bays and 1 Brick Auxiliary Services Building.
The work involved:
Supply delivery and construction of earthworks, Drainage, Access Roads, Minor and Major foundations including spill oil tank and transformer bunds.
Installation of all primary, Secondary and communication systems including earthing, structures, equipment, cabling and Cable terminations.
Design, Procure and construct Secondary system building.
Secondary System factory acceptance testing.
Secondary System site acceptance testing
Primary and Secondary Testing and Commissioning including assisting the client during energization
Supply and construct foundations for lattice gantries.
Supply and erect steel for lattice gantries.
Liaison on the secondary and communication systems between TransGrid (Operation and Maintenance), AusNet (220kV Asset Manager) and Powercor (66kV Asset Manager)
The Mudgeeraba Substation project was initiated to provide additional capacity and to secure the electricity supply for the 2018 Gold Coast Commonwealth Games. The substation is located at Varsity Lakes, Queensland.
We were engaged to complete the primary and secondary upgrade works at Mudgeeraba Substation.
The Mudgeeraba Substation construction involved:
A new 275/110kV 250MVa transformer, fire walls and noise wall
275kV bus extension, isolator installation and gantry extension
Installation of new control room
Demolition and rebuild of 110kV feeder and transformer bays
Disassembly and removal of redundant transformer and selected primary plant
The SA Water Pumps projects involved the replacement of eight water pump station substations at various locations across South Australia. These substations are essential to provide electricity supply to SA Water pumping stations, which enable water to be supplied from the River Murray to Adelaide and surrounding areas and Whyalla and its northern towns.
Morgan-Whyalla 1-4
132/3.3 kV substations are located in the Riverland and mid-north regions of the SA transmission network. These four substations are essential to provide electricity supply to SA Water pumping stations, which enable water to be supplied from the River Murray to Whyalla and northern towns.
Mannum-Adelaide 1-3 and Millbrook
132/3.3 kV substations are located in the eastern hills region of the SA transmission network. Project SummaryThe design and construction of the substations included: site drainage, foundations, transformer oil containment, fire consequence, lightning protection, insulation co-ordination, a very complex earthing study due to pipeline influences, secondary systems integration with SA Water and remote end substations, control buildings and overhead line cut-ins.We constructed new substation benches, foundations, high voltage plant and control systems within and adjacent to live assets while maintaining availability of critical electrical and water infrastructure for the state.
We conducted outage works to bring new substation equipment into service with minimal disruption to consumers. Upgrade work at the remote end substations. Installation of new overhead line structures and completed alterations to existing overhead line structures.
We replaced and upgraded protection and metering systems.
The fully equipped control buildings were subject to off-site factory testing to ensure they met IEC61850 standards.
We conducted the on-site commissioning of plant, energization of the equipment and loading of the new transformers with SA Water pump loads.
Primary and civil works and the 275kV tower cut-in
Procurement of the secondary systems, control building and all plant and equipment not free issue
Commissioning
The project was energised with extensive remote end design and construction works performed at Davenport and Canowie Substations to allow the energisation of Mt Lock Substation into the Davenport Canowie 275kV transmission line network.
The Tamworth to Gunnedah 66kv Transmission Line project for Country Energy included the refurbishment of existing infrastructure and a new transmission line at Tamworth, NSW.
Specific work scope included the installation of a twin circuit steel pole transmission line including optical ground wire (OPGW), and tie into the existing substation. At Gunnedah, twin transmission lines were refurbished, and new conductors and overhead earth wire (OHEW) were installed.
The conductors and OPGW were installed utilizing tension stringing techniques.
The scope of this project included the construction of a 33kv Transmission line which became the internal connection between the two halves of the Gullen Range Windfarm, near Bannister NSW.
The site was challenging as the team worked in an area where they had to deal with snow showers and sub-zero temperatures as well as high winds. Our staff safety was paramount and we worked with our onsite OHS officer to make sure the needs of the staff and the needs of the project were being met always.
This job was also in an area that had highly varied terrain and required substantial earthworks during the construction phase.
This project included the Bega Bypass HV Conflict Area Relocation and Street-lighting for Roads and Maritime and John Holland. The project included the design and installation of high voltage overhead and underground infrastructure and street-lighting for the Bega Bypass. This project commenced with Design in December 2012 and Construction was completed in November 2013.
Work on the distribution and transmission networks was carried out under outage arrangements with our authorized linesperson as the access recipients.
The works required extensive traffic management and working harmoniously with other subcontractors in a confined work site.
This project was delivered without quality non-conformances, environmental incidents or lost time injuries.
Key Challenges:
Design and construction of high voltage overhead and underground infrastructure
