Engineering at the leading edge of the grid
High-voltage power transformers are designed using Siemens simulation software together with proprietary calculation and validation procedures applied to the core, windings, structural components, leads and tank — with omni-directional validation to ensure performance.
Superior process equipment, careful material selection and efficient manufacturing yield small volume, light weight, low loss, low partial discharge and low noise — energy-efficient, easy to install and maintain, and reliable in operation, lowering running costs.
Transmission & Substation Power Transformers
| 750 kV — single-phase double-winding | 260–380 MVA |
|---|---|
| 750 kV — three-phase double-winding | 750–1140 MVA (YNa11) |
| 750 kV — single-phase three-winding autotransformer | 500–750 MVA |
| 500 kV | Single-phase & three-phase double-winding, off-circuit voltage regulating |
| 330 kV | Three-phase double-winding 90–720 MVA (YNd11); three-phase three-winding 90–240 MVA (YNyn0d11) |
| Also available | 220 kV and 110 kV classes |
Indicative ranges from the manufacturer's selection guide. Final ratings, taps, impedance and accessories are configured to your project specification.
Engineered to last in the field
Siemens-simulated design
Core, windings, leads and tank optimized and omni-directionally validated.
Small, light, low-loss
Efficient manufacturing reduces volume, weight, loss, partial discharge and noise.
KEMA certified
Independently type-tested to international electrical-equipment standards.
Reliable operation
Energy-efficient, easy to install and maintain, with lower running costs.
Where these transformers fit
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Need power units for a US or Canadian project?
Send your kVA, voltages, taps and accessory schedule — we'll return an engineered quote with drawings and a DOE/CSA efficiency statement.