Indian locomotive class WAG-9

Specifications
Specifications
Configuration:;
• UIC	Co′Co′
Gauge	5 ft 6 in (1,676 mm)
Bogies	Adtranz Fabricated Flexicoil IV
Wheel diameter	New:1,092 mm (3 ft 7 in),; Half worn:1,054 mm (3 ft 5+1⁄2 in); Full worn:1,016 mm (3 ft 4 in)
Wheelbase	15.7 m (51 ft 6 in)
Length	20.562 m (67 ft 5+1⁄2 in)
Width	3.152 m (10 ft 4+1⁄8 in)
Height	4.525 m (14 ft 10+1⁄8 in)
Axle load	WAG-9 : 20.5 tonnes (20.2 long tons; 22.6 short tons) WAG-9H/Hi/9i : 22.0 tonnes (21.7 long tons; 24.3 short tons)
Loco weight	WAG-9 : 123 tonnes (121 long tons; 136 short tons) WAG-9H/9Hi/9i : 132 tonnes (130 long tons; 146 short tons)
Electric system/s	25 kV 50 Hz AC Overhead
Current pickup(s)	dual pantographs
Traction motors	WAG-9/9H/9i : Adtranz 6FRA6068
MU working	2
Loco brake	Air and Regenerative
Train brakes	Air
Safety systems	Slip/slide control, Main overload relay, Over voltage relay, No volt protection, Vigilance Control Device, Fire Detection Equipment, Fire Extinguishers and Earth fault relay

Type and origin
Type and origin
Power type	Electric
Builder	Chittaranjan Locomotive Works,; Bharat Heavy Electricals Limited, Banaras Locomotive Works, ; Patiala Locomotive Works
Build date	1995 - present
Total produced	5071 as of April 2024

WAG-9
WAG-9
	Lallaguda based WAG-9 twins at Ghatkesar.
Power type
Type and origin
Power type	Electric
Builder	Chittaranjan Locomotive Works,; Bharat Heavy Electricals Limited, Banaras Locomotive Works, ; Patiala Locomotive Works
Build date	1995 - present
Total produced	5071 as of April 2024
Configuration:;
Specifications
Configuration:;
• UIC	Co′Co′
Gauge	5 ft 6 in (1,676 mm)
Bogies	Adtranz Fabricated Flexicoil IV
Wheel diameter	New:1,092 mm (3 ft 7 in),; Half worn:1,054 mm (3 ft 5+1⁄2 in); Full worn:1,016 mm (3 ft 4 in)
Wheelbase	15.7 m (51 ft 6 in)
Length	20.562 m (67 ft 5+1⁄2 in)
Width	3.152 m (10 ft 4+1⁄8 in)
Height	4.525 m (14 ft 10+1⁄8 in)
Axle load	WAG-9 : 20.5 tonnes (20.2 long tons; 22.6 short tons) WAG-9H/Hi/9i : 22.0 tonnes (21.7 long tons; 24.3 short tons)
Loco weight	WAG-9 : 123 tonnes (121 long tons; 136 short tons) WAG-9H/9Hi/9i : 132 tonnes (130 long tons; 146 short tons)
Electric system/s	25 kV 50 Hz AC Overhead
Current pickup(s)	dual pantographs
Traction motors	WAG-9/9H/9i : Adtranz 6FRA6068
MU working	2
Loco brake	Air and Regenerative
Train brakes	Air
Safety systems	Slip/slide control, Main overload relay, Over voltage relay, No volt protection, Vigilance Control Device, Fire Detection Equipment, Fire Extinguishers and Earth fault relay
Maximum speed
Performance figures
Maximum speed	100 km/h (62 mph)
Power output	WAG-9 Original : 6,120 hp (4,564 kW) WAG-9HC : 6,120 hp (4,564 kW) WAG-9HH : 9,000 hp (6,711 kW) WAG-9TWIN : 12,000 hp (8,948 kW)
Tractive effort	Starting : 475 kN (107,000 lbf); (WAG-9), 510 kN (110,000 lbf); (WAG-9H/i/Hi) Continuous : 325 kN (73,000 lbf) at 50 km/h
Operators
Career
Operators	Indian Railways
Numbers	Starting from 31000-31999, 32000-32999, 33000-33999, 38000+ & 90001+ CLW 34001+ BHEL 41000-41500 & 43000+ BLW 41501+ PLW
Locale	All Over India
Disposition	Active

The Indian locomotive class WAG-9 is a class of 25 kV AC electric locomotives that was developed in 1995 by ABB for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G), 9th generation (9) locomotive. They entered service in 1996. A total of 4650 WAG-9 have been built at Chittaranjan Locomotive Works (CLW), with more units being built at Banaras Locomotive Works (BLW), Bharat Heavy Electricals Limited (BHEL) and Patiala Locomotive Works (PLW). It was the most powerful freight locomotive of its fleet until the formal introduction of the WAG-12.

The WAG-9 is one of the most successful locomotives of Indian Railways serving freight trains for over 27 years. A passenger variant of the WAG-9 was developed namely the WAP-7 locomotive by modifying the gear ratio to pull lighter loads at higher speeds. Nowadays, it is a common locomotive used in freight trains.

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