- In March 2025, Alstom unveiled a next-generation lightweight onboard traction transformer for high-speed rail applications, designed to reduce energy losses and optimize power conversion in compact underframe spaces. The new system, launched as part of its Avelia series, emphasizes sustainability and reduced lifecycle costs for operators across Europe and Asia.
- In January 2025, Siemens Mobility introduced its Sitras® TCD modular onboard traction transformer, engineered for metro and regional trains. The transformer supports multiple voltage ranges (AC and DC) and features enhanced cooling efficiency, making it suitable for varied climatic conditions and high-traffic urban networks.
- In October 2024, Mitsubishi Electric Corporation announced the development of a hybrid-insulated traction transformer system that significantly lowers weight and improves insulation performance. The innovation targets EMU (Electric Multiple Unit) rolling stock and aligns with Japan’s initiative for faster, lighter, and greener transit solutions.
- In September 2024, ABB completed successful trials of its EcoTraction™ onboard transformer system in India. Designed for 25 kV AC lines, the system incorporates biodegradable insulation fluid and high-efficiency magnetic cores to reduce energy loss and maintenance requirements, supporting Indian Railways' electrification goals.
