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NHSRCL Equips Mumbai-Ahmedabad Bullet Train with 2×25 kV Advanced Overhead Traction System

Target:MPSCUPSCSSC GATeachingPrelims HighMains MediumStatic GK Link
22 Jul 2026
~2 min
Source: The Hindu
Key Data:508 km corridor2×25 kV system320 kmph14 traction substations31 switching posts28 seismometers
Bodies:NHSRCL
Practice MCQs from today's news ▸
What This Article Covers

1.The Mumbai-Ahmedabad Bullet Train corridor (508 km) will use a 2×25 kV Overhead Traction System, introduced in India for the first time, to power trains at up to 320 kmph.

2.Electrification includes 14 traction substations (5 in Maharashtra, 9 in Gujarat), 31 switching posts, and 28 seismometers for earthquake safety, with real-time centralised control.

3.Critical electrical components like transformers and OHE masts are now manufactured in India, reflecting significant indigenisation under the NHSRCL project.

The Big Picture
Prelims · HighMains · Medium

India's first high-speed rail corridor is being equipped with a 2×25 kV Overhead Traction System, a first in the country, enabling trains to run at 320 kmph. With 14 traction substations, 31 switching posts, and 28 seismometers, the project showcases significant indigenisation of critical electrical infrastructure, making it a key topic for infrastructure and technology questions in exams.

Exam Lens

Quick Exam Facts From News

Corridor Length508 km (Mumbai-Ahmedabad)
Traction System2×25 kV Overhead Traction System (first in India)
Max Speed320 kmph
Traction Substations14 (5 in Maharashtra, 9 in Gujarat)
Switching Posts31
Seismometers28 (22 along corridor, 6 inland)
Steel Masts~22,000
Cantilever AssembliesOver 25,700
Track Kilometres (incl. depots)1,125

1-Minute Revision

  • ›Corridor Length: 508 km (Mumbai-Ahmedabad)
  • ›Traction System: 2×25 kV Overhead Traction System (first in India)
  • ›Target this Data: 508 km corridor, 2×25 kV system, 320 kmph speed, 14 traction substations, 31 switching posts, 28 seismometers, ~22,000 steel masts, 1,125 track km.
  • ›Target this Nodal Body: National High Speed Rail Corporation Limited (NHSRCL) – under Ministry of Railways.
  • ›Target this Legal Point: First deployment of compound catenary system and 2×25 kV traction system in India; indigenisation of critical electrical components.

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which organisation is responsible for implementing the Mumbai-Ahmedabad High Speed Rail corridor?

Q2Statement-basedHard

Consider the following statements regarding the Mumbai-Ahmedabad Bullet Train corridor:

1. The corridor will use a 2×25 kV Overhead Traction System, being introduced in India for the first time.

2. A total of 14 switching posts are being installed along the corridor to ensure uninterrupted power supply.

3. The system includes 28 seismometers, of which 22 are installed along the high-speed corridor.

Which of the statements given above is/are correct?

Q3Data-centricMedium

What is the total number of traction substations being built along the Mumbai-Ahmedabad bullet train corridor?

Q4Application/ImpactMedium

What is the primary purpose of installing seismometers along the bullet train corridor?

All 25 MCQs ▸
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