25 kV rigid overhead catenary system in 5.55m tunnel diameter for 3.9x3.2 m coaches in Delhi MRTS: Challenges

Delhi MRTS Phase-I is designed as a heavy metro system to cater to 60,000 Phpdt (Peak Hour Passenger per Direction Trip), up gradable to 80,000 Phpdt. The detailed study indicated that either 1500 V dc or 25 kV ac is required to meet the above Phpdt, however, from energy efficiency,...