---
title: Transformer Replacements & Ring Main Extension
description: Acciona engaged TEW to upgrade Coombabah STP, including de-commissioning existing transformers and commission new cabling and transformer kiosks without interrupting the supply to the treatment plant.
image: https://tewsolutions.com.au/hubfs/Projects/Coombabah/20211111_220059474_iOS.jpg
---

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# Transformer Replacements & Ring Main Extension, Coombabah STP Gold Coast

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ProjectCoombabah STP Transformer Replacements & Ring Main Extension

Client/s

 — City of Gold Coast  
 — Acciona

Value$840K

---

 

## Project Scope

Acciona engaged TEW to undertake an upgrade of multiple transformers and HV supply cabling at Coombabah STP. This work included careful planning and management to de-commission the existing transformers and commission new cabling and transformer kiosks without interrupting the supply to the treatment plant.

- Construct Only
- Installation, test and commissioning of Seven (7) Transformers into Gold Coast's largest wastewater treatment plant.
- Undertake extension 11kV underground network.

 

![TEW CoGC Coombabah STP Transformer Replacement 03](https://tewsolutions.com.au/hs-fs/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2003.png?width=795&height=1060&name=TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2003.png)

 

## Challenges

- Long procurement of specialist hardware with tight changeover and roll back timeframes.
- Interfacing with existing electrical infrastructure within an existing operational Waste Water Treatment Plant.
- Various crane lifts that require interim operational procedural changes."

 

## Outcomes

- Successful installation of new Kiosk Transformers.
- Delivery and changeover works completed within shutdown timeframes.
- Issue resolution, repairs and update of existing infrastructure to meet new specifications. 

 

[Zoom](https://tewsolutions.com.au/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2001.png)[01 Box Title 01Box TitleRead More](https://tewsolutions.com.au/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2005.png)[01 Box Title 01Box TitleRead More](https://tewsolutions.com.au/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2010.png)[01 Box Title 01Box TitleRead More](https://tewsolutions.com.au/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2008.png)[01 Box Title 01Box TitleRead More](https://tewsolutions.com.au/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2009.png)[01 Box Title 01Box TitleRead More](https://tewsolutions.com.au/hubfs/Projects/Coombabah/TEW%20CoGC%20Coombabah%20STP%20Transformer%20Replacement%2002.png)

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