8 Units of S11-1000kVA/11kV Transformers for a Water Treatment Plant in Australia
Project Overview
HBTP supplied 8 units of S11-1000kVA/11kV oil-immersed transformers for a major wastewater treatment plant upgrade in Melbourne, Australia. The plant serves a population of over 500,000 people.
Project Background
Australia's water utilities are upgrading infrastructure to meet growing demand and stricter environmental regulations. This project involved upgrading the electrical infrastructure to support new treatment processes including advanced filtration and UV disinfection systems.
Customer Requirements
Requirements included: 1000kVA capacity, 11kV/0.4kV ratio, S11 efficiency, outdoor installation with IP54 protection, compliance with Australian AS/NZS standards, and suitability for corrosive wastewater treatment environment.
Our Solution
HBTP supplied transformers with corrosion-resistant tanks and stainless steel fittings for the treatment plant environment. The S11 efficiency class reduces ongoing energy costs for the utility operator.
| Parameter | Specification |
|---|---|
| Model | S11-1000/11 |
| Capacity | 1000 kVA |
| Voltage Ratio | 11 / 0.4 kV |
| Protection | IP54 |
| Standard | AS/NZS 60076 |
| Cooling | ONAN |
Quality & Testing
All units passed routine tests per AS/NZS standards, including insulation resistance, winding resistance, turns ratio, no-load loss, and load loss measurements. Salt spray testing verified corrosion resistance.
Delivery & Installation
The 8 units were delivered to the Port of Melbourne and transported to the treatment plant. HBTP provided technical support during installation and commissioning.
Project Outcomes
The treatment plant upgrade was completed on schedule and now meets all environmental discharge requirements. The transformers are operating reliably with minimal maintenance requirements.
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