Indian locomotive class WAG-7

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Indian locomotive class WAG-7" – news · newspapers · books · scholar · JSTOR (January 2021) (Learn how and when to remove this message) This article possibly contains original research. Please improve it by verifying the claims made and adding inline citations. Statements consisting only of original research should be removed. (January 2021) (Learn how and when to remove this message) (Learn how and when to remove this message)

WAG-7
AJJ based WAG-7 roaming light near Erode.
Type and origin Power type Electric Builder Chittaranjan Locomotive Works (CLW), Bharat Heavy Electricals Limited (BHEL). Build date 1990–2015(CLW) 2009-2023(BHEL) Total produced 1773(CLW) 201(BHEL) 1974
Specifications Configuration: ​  • UIC Co′Co′ Gauge 5 ft 6 in (1,676 mm) Bogies ALCO Fabricated Wheel diameter New:1,092 mm (3 ft 7 in), Half worn:1,055 mm (3 ft 5+1⁄2 in) and Full worn:1,016 mm (3 ft 4 in) Wheelbase 3.8 m (12 ft 5+5⁄8 in) Length 20.934 m (68 ft 8+1⁄8 in) Width 3.179 m (10 ft 5+1⁄8 in) Height WAG-7 : 4.185 m (13 ft 8+3⁄4 in)[1] WAG-7H : 4.135 m (13 ft 6+3⁄4 in)[2] Axle load WAG-7 : 20.5 tonnes (20.2 long tons; 22.6 short tons) WAG-7H : 22 tonnes (22 long tons; 24 short tons) Loco weight WAG-7 : 123 tonnes (121 long tons; 136 short tons) WAG-7H : 132 tonnes (130 long tons; 146 short tons) Electric system/s 25 kV 50 Hz AC Overhead Current pickup(s) pantograph Traction motors WAG-7 : Hitachi HS15250A WAG-7H : Hitachi HS15250G MU working 4 Loco brake Air, Hand and Rheostatic (Friction) Train brakes Air, Vacuum and Dual Safety systems Slip control, Main overload relay, Over voltage relay, No volt relay, Earth fault relay, Low pressure governor, Vacuum Control Governor, Train parting alarms and Brake cylinder cutoff valve
Performance figures Maximum speed 105 km/h (65 mph) Power output Max : 5,350 hp (3,990 kW) Continuous : 5,000 hp (3,730 kW) Tractive effort WAG-7 starting : 48 tons WAG-7 continuous : 45 tons? WAG-7H starting : 91 tons? Factor of adh. 0.345
Career Operators Indian Railways Numbers WAG-7 : 27001-27999, 28000-28770, 24501-24701 WAG-7H : 28024 and 28739 Nicknames SHANTIDAN, EKTA, KARAMVIR, GAJRAJ, SWARNABHA, SARVOTTAM, SAMARPAN, CAUVERY, SAMRAT, PRAYAS & AGRASAR Locale All over India Disposition active

The Indian locomotive class WAG-7 is a class of 25 kV AC electric locomotives that was developed in 1990 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), alternating current (A), goods traffic (G) engine, 7th generation (7). They entered service in 1992. A total of 1974 WAG-7 were built at CLW and BHEL between 1990 and 2015 by CLW and 2009 and 2023 by BHEL which made them the most numerous class of mainline electric locomotive till its successor the WAG-9.

The WAG-7 is one of the most successful locomotives of Indian Railways,^{[peacock prose]} serving freight trains since its introduction in 1990. Even though with the advent of new 3-phase locomotives like WAG-9 and WAG-12, all WAG-7 locomotives except ones destroyed in accidents, are in service and doing all types of duties.