Gayndah Powering Up Region

News Mail Bundaberg Qld., October 30, 2009 | Go to article overview

Gayndah Powering Up Region


A 200-tonne crane has lifted two vital pieces of equipment into place for the $20 million redevelopment of Ergon Energy's Gayndah substation.

Area operations manager Craig Harris said the crane, supplied by Stewart and Sons of Bundaberg, firstly installed a new regulator and then a transformer into position in the substation yard.

"The 15 megavolt-ampere (MVA), 66kV regulator from Wilson Transformer Company will be used to supply power to the Mundubbera and Eidsvold substations," Mr Harris said.

It will replace an ageing 10MVA unit that has been at the site for many years and will complement the $21 million Mundubbera substation being constructed on the outskirts of the town.

Once the new regulator is in place and assembled, the principal contractor for the construction project, Tenix Alliance, will complete the necessary protection and connection work.

Ergon Energy's test staff will then commission the regulator and bring it into operation in February.

Mr Harris said Wilsons also lifted and relocated a 10MVA transformer to its new position.

"The first of the new 10MVA transformers is already in operation, supplying power to about 2000 customers in the Gayndah region," Mr Harris said.

"When the second transformer is commissioned next year, the new substation will have more than three times the capacity of the old substation. Although the substation is being redeveloped on its current site beside the depot, the size of the substation yard has been doubled to cater for the larger equipment."

Mr Harris said another primary plant inside the substation is also being replaced, while the powerlines entering and exiting the substation, along with the associated protection and control systems, have been upgraded to improve the reliability of supply.

"Two air break switches have been installed outside the Gayndah substation to provide increased switching flexibility and enable supply in the Mundubbera and Eidsvold areas to be maintained if there is a planned or unplanned outage to certain equipment in Gayndah Substation," he said. …

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