Английская Википедия:Indian locomotive class WAP-7

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Шаблон:Short description Шаблон:Use dmy datesШаблон:Use Indian English Шаблон:Infobox locomotive

The Indian locomotive class WAP-7 is a class of 25 kV AC electric locomotives that was developed in 1999 by Chittaranjan Locomotive Works (CLW) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 7th generation (7). They entered service in 2000. A total of 1609 WAP-7 have been built, with more units being built at CLW, Banaras Locomotive Works (BLW) and Patiala Locomotive Works (PLW).

The WAP-7 is the most successful locomotives of Indian Railways serving passenger trains for over 23 years. It is a passenger variant of the WAG-9 freight locomotive with a modified gear ratio to pull lighter loads at higher speeds. With an output of 6125HP, it is the most powerful passenger locomotive in the Indian Railways fleet, and the most numerous passenger locomotive in India. The WAP-7 is capable of hauling 24 coach trains at speeds Шаблон:Convert.

History

It is now largely used by Northern Railways (NR), South Central Railways (SCR), Central Railways (CR), South East Central Railways (SECR), South Eastern Railways (SER), West Central Railways (WCR), Eastern Railways (ER), Western Railways (WR), North Central Railways (NCR), South Western Railways (SWR), Southern Railways (SR), East Central Railways (ECR), East Coast Railways (ECoR), North Eastern Railways (NER), North Western Railways (NWR) etc. among other zones. As of October 2021, all of which are fitted with H-type transition couplers which are compatible with both screw coupling and centre-buffer coupling. In February 2017, Banaras Locomotive Works built their first WAP 7 class locomotive.[1]

In 2019, a variant of the WAP-7, designated the WAP-7HS, was introduced for higher speeds. The WAP-7HS has a max speed of Шаблон:Convert, and is capable of hauling a 24-car train at Шаблон:Convert as opposed to the Шаблон:Convert of the original. Indian Railways plans to use the WAP-7HS for Shatabdi, Rajdhani, and Duronto express trains. However, as of September 2022, it has not been confirmed if any others have been built, and the single completed WAP-7HS has stayed restricted to Шаблон:Convert.

Head-on Generation (HOG)

Файл:Indian Electric Locomotive WAP-7 ED - 39231.jpg
The HOG ports are equipped on right side upper and left side down on Erode based WAP-7 at White Field railway station

A main feature of Majority locomotives of this class is that they eliminate the need to have separate End on Generation (EOG) sets or DG (Diesel Generator) sets for supplying power to the train resulting in significant savings on maintenance and running costs. This technology, called HOG or "Head On Generation", transfers electric power from the loco's pantograph to the coaches instead of EOG where a power car equipped with diesel generator capable of generating adequate power of 3-phase 50 Hz 415 V / 750 V AC (called 'head-end power') is provided at either end of the train rake to supply power.[2][3][4]

Locomotive sheds

Zone Name Shed Code Quantity Introduction
HOG Non HOG
Central Railway Ajni AQ 66 3 2010
Kalyan KYN 62 6 2019
Pune PA (D) 27 1 2023
Eastern Railway Howrah HWH 87 2012
Sealdah SDAH 18 12 2020
East Central Railway Gomoh GMO 46 2000
Barauni BJU 6 2021
Samastipur SPJ (D) 43 2022
East Coast Railway Visakhapatnam VSKP 55 6 2016
Northern Railway Ghaziabad GZB 119 39 2000
Ludhiana LDH 22 5 2022
North Central Railway Kanpur CNB 82 2019
North Eastern Railway Gonda GD (D) 21 2021
Izzatnagar IZN (D) 6 2023
Northeast Frontier Railway Siliguri SGUJ 1 2024
North Western Railway Bhagat Ki Kothi BGKT (D) 22 2023
Southern Railway Erode ED 76 2017
Royapuram RPM 99 12 2011
South Central Railway Lallaguda LGD 97 41 2008
Vijayawada BZA 38 2021
South Eastern Railway Tatanagar TATA 43 2017
Bondamunda BNDM 16 2018
Santragachi SRC 41 2017
South East Central Railway Bhilai BIA 9 2 2012
South Western Railway Krishnarajapuram KJM (D) 44 2019
Western Railway Vadodara BRC 164 2016
West Central Railway Tughlakabad TKD 80 22 2013
Itarsi ET 70 2018
Total 1461 148
Total Locomotives Active as of March 2024[5] 1609

Gallery

See also

References

Шаблон:Reflist

External links

Шаблон:Commons category

Шаблон:Broad gauge locomotives of India