MEMU

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In Indian Railways, a MEMU is an electric multiple unit (EMU) train that serves short and medium-distance routes in India, as compared to normal EMU trains that connect urban and suburban areas. The acronym stands for Mainline Electric Multiple Unit.[1]

History

Indian Railways (IR) started MEMU service on Asansol – Adra section on 15 July 1995 and on Kharagpur – Tata section on 22 July 1995. Delhi-Panipat MEMU service started on 27 September 1995. Raipur–Durg–Bhatapara–Raipur–Bilaspur MEMU service started on 17 October 1995. Arakkonam-Jolarpettai MEMU service on 22 May 2000. Bankura-Midnapore MEMU started on 30 June 2000. The first 20 coach MEMU ran between Surat to Virar in 2017. Since 2019, 3-phase MEMUs have started replacing existing MEMU rakes.[2]

New 3rd generation was rolled out from RCF Kapurthala with following features:

  1. Ethernet-based Train Control Management System which provides advanced control features
  2. designed for speeds of up to 110 kmph
  3. Energy efficient LED lights have been provided with 50 percent emergency lights in each coach
  4. train is equipped with the latest GPS-based public address and passenger information system in each coach to facilitate passengers with respect to railway stations enroute
  5. train is equipped with 3-phase IGBT-based converter and inverter designed and developed by BHEL
  6. train also features a technologically advanced regenerative braking system.

IR is progressively replacing all locomotive-hauled slow and fast passenger and intercity trains with EMUs. The upgraded trains are re-branded as MEMUs.

Operation

The system uses multiple electrical units[3][4] operating on 25 kV AC drawn from overhead lines. The trailer coaches have two toilets for passengers and one for the crew.

The train can run up to Script error: No such module "convert". between Eastern Ghat and Western Ghat. The rakes have a maximum permitted speed of Script error: No such module "convert". on broad-gauge tracks. The motorcoaches use DC traction motors. These rakes use asynchronous traction motors and have a maximum designed speed of 110 km/h. These use a stainless steel body. Two of them operate on South Central Railways.

ICF launched new MEMUs capable to operate at 110–130 km/h. The construction cost is Template:INR 26 crore per unit and can carry 2,618 passengers. This train has a three phase traction motor and operates on 25 kV current which saves 35% energy. It offers GPS-based passenger information systems and announcement in coaches. It has double leaf sliding doors, gangways, CCTV cameras and aluminium luggage racks. The driver's cabin has AC and the coach has an emergency communication facility. It is designed to operate between cities Script error: No such module "convert". away in Uttar Pradesh. The train may start in February 2019.[5]

Manufacturing

MEMU
MEMU Rakes built by BEML, Bangalore

MEMUs are manufactured at Rail Coach Factory, Kapurthala, and Integral Coach Factory, Chennai. Rakes are maintained in the Titlagarh coach maintenance shops.Script error: No such module "Unsubst". Marathwada Rail Coach Factory, Latur is currently trying to ramp up production capacity of 250 MEMU coaches per annum.

Maintenance

File:Kollam MEMU Shed, Jan 2017.jpg
MEMU Car Shed and Office in Kollam Junction railway station premises

MEMU Car Sheds are functioning for the maintenance of MEMU rakes in most of the states where the services are operated. MEMU Car Sheds are operational in Avadi, Bangalore, Kollam,[6] Palakkad, Tambaram, Trichy and Vijayawada under Southern Railway.

Rolling stock

MEMU usually uses 8,12 and 16 car coaches, but there are 14,18 and 20 coach configurations too. The trailer coaches have two toilets for passengers and one for the crew. This train can go either fast or slow.

Services

Diesel Electric Multiple Units (DEMU)

Template:Static row numbers

Service Locale Distance Average speed Travel time Stops Frequency Template:Tool tip
Ambala–Amb Andaura Haryana and Himachal Pradesh Template:Cvt Template:Cvt 06h 10m 22 Twice a day [7]
Amritsar–Attari Punjab Template:Cvt Template:Cvt 00h 45m 13 Daily [8]
Ara–Sasaram Bihar Template:Cvt Template:Cvt 03h 30m 26 Daily [9]
Banihal–Baramula DEMU Jammu and Kashmir Template:Cvt Template:Cvt 02h 35m 12 Daily [10]
Indore–Dr. Ambedkar Nagar Madhya Pradesh Template:Cvt Template:Cvt 0h 55m 12 Daily [11]
Indore–Ratlam Madhya Pradesh Template:Cvt Template:Cvt 02h 40m 13 Daily [12]
Jalandhar City–Amritsar Punjab Template:Cvt Template:Cvt 01h 50m 13 Daily [13]
Mahesana–Abu Road DEMU Gujarat and Rajasthan Template:Cvt Template:Cvt 00h 55m 15 Daily [14]
Nizamabad–Kacheguda Telangana Template:Cvt Template:Cvt 04h 10m 12 Thrice a day [15]
Raichur–Gadwal–Kacheguda Karnataka and Telangana Template:Cvt Template:Cvt 01h 00m 8 Daily [16]
Rajgir–Bakhtiyarpur Bihar Template:Cvt Template:Cvt 02h 25m 5 Daily [17]
Ratlam–Laxmibai Nagar Madhya Pradesh Template:Cvt Template:Cvt 02h 45m 14 Daily [18]
Rohtak–Rewari Haryana Template:Cvt Template:Cvt 02h 00m 13 Daily [19]
Sabarmati–Mahesana Gujarat Template:Cvt Template:Cvt 01h 20m 7 Daily [20]
Sabarmati–Patan Gujarat Template:Cvt Template:Cvt 02h 35m 7 Daily [21]
Vasai Road–Diva Maharashtra Template:Cvt Template:Cvt 00h 52m 5 Daily [22]

Electric Multiple Units (EMU)

Template:Static row numbers

Service Locale Distance Average speed Travel time Stops Frequency Template:Tool tip
Chennai–Tirupati Andhra Pradesh and Tamil Nadu Template:Cvt Template:Cvt 04h 00m 25 Daily [23]
Dahod–Ratlam Gujarat and Madhya Pradesh Template:Cvt Template:Cvt 03h 05m 12 Daily [24]
Falaknuma–Bhuvanagiri Telangana Template:Cvt Template:Cvt 01h 50m 15 Daily [25]
Panvel–Dahanu Road MEMU Maharashtra Template:Cvt Template:Cvt 03h 25m 19 Daily [26]
Panvel–Vasai Road Maharashtra Template:Cvt Template:Cvt 01h 35m 10 Daily [27]
Rajgir–Danapur Bihar Template:Cvt Template:Cvt 04h 35m 21 Daily [28]
Sealdah–Berhampore Court West Bengal Template:Cvt Template:Cvt 04h 15m 23 Daily [29]
Ujjain–Nagda Madhya Pradesh Template:Cvt Template:Cvt 01h 25m 6 Daily [30]
Virar–Bharuch Gujarat and maharashtra Template:Cvt Template:Cvt 06h 45m 39 Daily [31]
Whitefield–KSR Bengaluru City Karnataka Template:Cvt Template:Cvt 00h 40m 12 Daily [32]

Gallery

See also

References

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  5. ↑ New Train 18-like MEMU for North India! Indian Railways rolls out 130 kmph train for short-distance travel
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External links

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