Generator Transformers for Windfarms (Onshore/Offshore)
Kempston Power provides windfarm (onshore and offshore) transformers using both aluminium and copper foil winding technologies, allowing us to meet a wide range of customer and project specifications. Each transformer is subjected to comprehensive type testing to ensure dependable performance and long-term durability within demanding renewable energy environments.
Key design features include:
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Optimised for Low Load Factors – Designed to operate efficiently under the variable and lower average load conditions commonly associated with wind turbine applications.
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High-Efficiency Core Construction – Manufactured using premium low-loss CRGO steel with precision mitred joints to minimise core losses and improve overall efficiency.
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Advanced Cooling Design – Circular winding arrangements combined with integrated coolant flow ducts ensure even force distribution and help prevent hotspot formation during operation.
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Built for Harsh Environments – Engineered for reliability in challenging tropical and outdoor conditions, incorporating lightning arrestors and enhanced protective features.
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Enhanced Operational Stability – Designed to withstand voltage fluctuations of up to -15% low voltage/high current conditions, supporting reliable grid performance and continuity.
Inverter Duty Transformers for Solar PV Applications
Kempston Power supplies inverter duty transformers (IDTs) specifically engineered for solar PV applications, supporting large-scale renewable energy projects across global markets. As of December 2025, transformers representing a combined capacity of more than 20 GW have been supplied worldwide, reflecting extensive experience within the solar sector.
Recognised as an early supplier of 3-winding IDTs in India, Kempston Power has continued to advance its offering through the development of sophisticated 4-winding and 5-winding transformer designs to meet evolving project requirements.
Key features and capabilities include:
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Manufactured using both aluminium and copper foil winding technologies
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Highest type-tested rating achieved: 17.3 MVA for a 5-winding IDT
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Approximately 5 GW of solar transformers supplied internationally, including projects in the Philippines, Egypt, Kenya, Oman, Chile, and Togo
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Electrostatic shielding incorporated to minimise DC interference
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Thermal monitoring systems and low-loss designs to maximise efficiency and operational reliability
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Rugged construction suitable for extreme environmental conditions
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Designed for compatibility with inverter du/dt requirements to support optimum solar performance
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Multiple LV windings engineered with matched impedance characteristics to ensure balanced load distribution
Through continuous innovation and proven field performance, Kempston Power delivers transformer solutions designed to support the long-term reliability and efficiency demands of modern solar infrastructure.