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Easing Delhi's traffic woes

Delhi commuter network runs smoothly with Hitachi ABB Power Grids traction transformers

The state-owned Delhi Metro Rail Corporation Limited (DMRC) serves India’s National Capital Region and is the national benchmark for on-time project execution and efficiency. Electrified via 25-kilovolt (kV), 50-hertz (Hz) overhead catenaries, DMRC oversees 213 kilometers of track and 148 street-level,  elevated and underground stations, serving 2.661 million passengers each day.

ABB has delivered an array of products and systems for DMRC over the years, including traction transformers for 614 high-capacity metro trains manufactured by Bombardier. For these metro cars ABB developed an integrated, under-frame traction transformer with a silicon oil cooler unit and accessories that ensure it will provide reliable service despite heavy daily use. The ABB traction solution also guarantees low-noise levels.

The initial traction units for this project were made in Switzerland, and the remainder manufactured locally at ABB’s state-of-the-art transformer facility in Vadodara, India, providing the customer with high-quality, locally-built products.

Deliveries were completed in 2012 and in 2015 Bombardier received new orders for additional train sets which will increase the DMRC metro fleet from 614 to 776 units – all of them equipped with ABB traction transformers.

Main data

Product Traction transformer
Application EMU

1’160 kVA


25 kV AC

Insulating fluid Silicon
Position Under frame
Country India
Deliveries 2008 - till today

Links and downloads

Keeping India on track - ABB solutions for Delhi Metro

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