Bhubaneswar: The East Coast Railway (ECoR) is set to enhance its electrification infrastructure with the introduction of the 2X25 KV Overhead Electrification (OHE) system in several railway sections in Odisha.
In line with the Railway Board’s target of achieving 3000 MT loading capacity and to support the introduction of high-speed trains, the existing 1X25 KV OHE system will be upgraded to the more robust 2X25 KV system. This upgradation is crucial to meet the increased load demands and ensure the maintenance of a proper voltage level.
The move is aimed at improving voltage regulation, facilitating smoother operations for semi-high-speed trains, and enabling the increased movement of heavily-loaded goods trains.
The 2X25 KV system works by distributing the voltage along the line at a higher level (50 KV) and feeding the train at 25 KV. This is achieved by providing power from Traction Sub-stations (TSS) using 50 KV transformers, with intermediate autotransformers supplying 25 KV power to the rolling stock. In addition to providing enhanced voltage stability, the upgraded system can support the growing traction load, ensuring the smooth running of both semi-high-speed passenger trains and heavy freight trains.
The ECoR has planned to convert the existing 1X25 KV OHE system to the 2X25 KV system in the following sections:
• Bhadrak-Khurda Road
• Palasa-Vizianagaram
• Cuttack-Paradip
• Cuttack-Talcher-Angul
• Vizianagaram-Rayagada
The 2X25 KV system upgrade work is being carried out by the Construction Organization of ECoR. Tenders for the execution of the system in the Cuttack-Paradeep and Cuttack-Talcher sections have already been invited, with the tender opening scheduled for December. The project is expected to be completed by March 2027.
The upgradation is also aligned with ECoR’s commitment to sustainability and green energy. The transition to the 2X25 KV Overhead Electrification system will contribute to reducing the railway network’s dependence on fossil fuels by promoting electric-powered trains. This move will further enhance energy efficiency, as electric traction is more environmentally friendly compared to diesel, reducing emissions and carbon footprints.
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