Engineered to Last. Priced to Compete. Delivered on Time.
South Wales Transformers designs and manufactures high-performance distribution and power transformers for the UK energy sector. From standard oil-filled units to bespoke amorphous core solutions, we deliver reliable, efficient, and competitively priced equipment backed by expert commissioning and nationwide delivery.
Product Range
Amorphous Core Transformers
Rating: 315 kVA to 3 MVA
Cooling: ONAN / KNAN
Tap Changer: OLTC / Off-Load
IEC 60076 / EU Ecodesign Tier 2
Medium Power Transformers
Oil Distribution Transformers
Rating: Up to 5,000 kVA
Voltage: Up to 36 kV
Cooling: ONAN / ONAF
Conservator, hermetic & sealed types
Rating: Up to 135 MVA
Voltage: Up to 142 kV
Mineral & special oil designs
Gas-cushion up to 30 MVA available
Special Transformers
Reactor & rectifier transformers
Earthing & mobile units
OLTC tap-changing options
Bespoke designs to specification
Small Power Transformers
Rating: Up to 10 MVA
Voltage: Up to 36 kV
Conservator, hermetic & sealed types
Solar, wind & industrial applications
Dry type/CRT Transformers
Rating: 160 kVA to 6,000 kVA
Voltage: Up to 36 kV
Cooling: AN / AF upon request
IP00 to IP33 protection class F/H
Request a Technical Consultation
Speak with our engineering team to discuss your project requirements, technical specifications, or delivery timescales. We provide expert guidance on product selection, system design, and compliance with current standards.
Our Services
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Our Services •
Power Grid Optimisation
Streamline your energy management with our PowerGrid Optimization service, designed to enhance control and efficiency across your electrical network, ensuring reliable performance and seamless operation.
Precision Switch Panel Engineering
Delivering expertly crafted switch panels designed to optimize energy distribution and enhance electrical grid reliability. Our solutions are precision-engineered to meet the demanding standards of modern infrastructure.
Transformer Efficiency Enhancement
Optimize the performance and lifespan of your transformers with our advanced efficiency solutions. Increase reliability and reduce energy loss through innovative technical improvements.
Precision Metering Solutions
Ensure accurate and reliable energy measurements with our state-of-the-art metering technology. Optimize your energy management with precision and transparency.
About our company
With a commitment to innovation and sustainability, we deliver comprehensive electrical solutions that empower communities and industries to flourish. Our team of experienced professionals is dedicated to ensuring reliable service and advancing a greener energy future.
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