E X P R E S S
TRAIN 18 | INDIA’S PRIDE | AN EXEMPLAR OF MAKE IN INDIA
DTC MC TC MC NDTC MC TC MC NDTC MC TC MC MC TC MC DTC
END BASIC UNIT (4) MIDDLE BASIC UNIT (4) MIDDLE BASIC UNIT (4) END BASIC UNIT (4)
DTC: Driving Trailer Coach | MC: Motor Coach | TC: Trailer Coach | NDTC: Non-Driving Trailer Coach
SALIENT FEATURES TECHNICAL DETAILS
>> Semi-high speed (160 km/hr) multiple unit train set Train Formation: 16 Coaches (4 Basic unit per train) | % Motoring: 50% | Maximum Test Speed: 176 km/hr | Max Service Speed:
>> Quicker acceleration ability and contemporary passenger amenities 160 km/hr | Average acceleration (from 0 to 40 km/hr): 0.8 m/s² | Deceleration: 0.8 m/s²
>> Chair Car type and 180 degree revolving seats at Executive Class
>> Stainless steel car body with continuous window glasses
>> Fully sealed gangways PROPULSION SYSTEM
>> Propulsion equipments shifted from on-board to under-slung
>> Automatic plug-type doors with retractable foot step IGBT based energy efficient 3 phase propulsion system (supplied by M/s Medha) and regenerative braking.
>> On-board mini pantry Equipment features:
>> Special provisions in DTC for persons with disability DTC: Non-powered vehicle, Pre-fabricated driver desk with 10.4” touch based TFT display, PIS control, Battery box,
>> Zero discharge vacuum based bio-toilets Battery Charger, Compressor mounted under-slung, Pantry, RMPU control unit, mono block pump controller, Cab
>> Modern bolster-less bogie with fully suspended traction motors rear wall (CRW), Guard cab rear wall (GCRW) panel. Train control & management system (TCMS), Ethernet based
>> Wheel mounted disc brake system communication network.
>> 50% powering, i.e., every alternate coach is powered MC: Four axles each equipped with fully suspended 3 phase asynchronous traction motor, two under-slung
>> On-board GPS based Passenger Information System (PIS) mounted Lines and Traction converter unit (LTC) one for each bogie, Under-slung mounted Brake chopper resistor,
>> Plush interiors and diffused LED lighting Under-slung mounted IV coupler, Pantry, RMPU, mono block pump controller, electrical cabinet.
>> All air-conditioned coaches including driver cab TC: Pantograph for current collection, Vacuum circuit breaker, Roof mounted HV isolator, Transformer, Un-
>> Maximum seating capacity of 56 passengers (Executive) and 78 der-slung Auxiliary Converter and Power transformer.
passengers (Non-executive) NDTC: Similar to DTC except driving interface, Battery box, Battery charger and under-slung mounted compressor,
>> Offers comfort and pace to the passengers pantry, RMPU control unit, mono block pump controller, CRW, GCRW panels.
TRAIN 18 BOGIE - SALIENT FEATURES TORQUE LEVELS PROPULSION CHARACTERISTICS
PARTS TORQUE (Nm) S.no. Description Value
>> Overall dimension (LxBxH) in mm: 4308x2855x988
>> Wheel Base: 2700 mm Reaction rod 1 New Wheel Diameter
(M20x140) 510 952 mm
>> Wheel Diameter: 952 mm (New) / 877 mm (Condemn)
>> Axle Capacity: 21 t Traction Motors 269 2 Half Worn Wheel Diameter 915 mm
>> Wheel seat diameter: 212 mm (for MC) / 190 mm (for TC) (M16x100)
>> Axle body diameter: 179 mm (for MC) / 160 mm (for TC) Bottom Suspension Bolt 867 3 Fully Worn Wheel Diameter 877 mm
(M24x190)
>> Bearing: CTRB-130mm-SKF/TIMKEN
>> Axle control arms with pivot bush Coupling 46 4 No. of traction motors per Motor coach 4
>> Primary suspension: Nested helical springs with shock absorber and
silent block in axle control arm 5 Maximum tractive effort of Motor coach 106 kN
>> Secondary suspension: Air spring over bogie side frame with 2
vertical and 2 lateral dampers TECHNICAL: TRACTION MOTOR 6 Max power at wheels per motor coach during motoring 1296 kW
>> Brake system: Wheel mounted disc brake
>> Brake unit: Brake calipers at end of bogie frame 1 HOUR RATING 7 Gear ratio 5.158
>> Parking brake: Integral unit of brake caliper
Power 280.75 kW (electrical) 8 Maximum braking effort 94 kN
>> Fully suspended traction motor
>> Bolster less bogie
Voltage 1375 V 9 Max power at wheels per motor coach during braking 1567 kW
>> WSP sensor, axle earthing, Speed sensor
>> Bogie Weight: 10.50 t (for MC) / 7.21 t (for TC) Current 10 Gear efficiency 98%
131 A
Frequency 111.2 Hz
Bogie Components Bogie Frame
Slip 0.95%
TECHNICAL DATA: GEAR BOX
Air Spring Gear Box
Gear Ratio Main gear = 98; Pinion = 19;
Vertical Damper Shaft output 267 kW (mechanical) Ratio = 5.158
Wheel Mounted Centre Pivot
Power factor 0.9 Traction motor characteristics under Traction motor Datasheet document:
Disc Brake Traction Centre different conditions TSA016492 Rev.B
RPM 3304 rpm Test speed (952mm/915mm/877mm):
Max designed test speed in RPM & 5059/5264/5492 rpm corresponding
Wheel corresponding vehicle speed (km/hr)
CONTINUOUS RATING to 176 km/hr vehicle speed
Axle Coil spring with
Service speed
control arm Power 260.78 kW (electrical) Max designed service speed in RPM & (952mm/915mm/877mm):
Traction Motor Yaw Damper corresponding vehicle speed (km/hr) 4599/4785/4992 rpm corresponding
Voltage 1375 V to 160 km/hr vehicle speed
Lateral Bump Stop
Bearing
Stabilizing system Current 121 A Unventilated rating Self Ventilated motor
Proprietary information. Undertaking
Power Schematic: Train-18 Frequency 111.1 Hz letter from TSA regarding confirma-
Details of insulation tion of usage of insulating materials
Pantograph 25kV AC Overhead line (OHE) Slip 0.87% having temperature index greater
Circuit breaker DC-AC than 220
Motor Converter
Shaft output 248 kW (mechanical) Details of lubrication to be used in Indian Oil ServoSyn Gear 75W-90LL
gear case & different bearings
Power factor 0.9
2x3 Phase motors Motor efficiency at rated power 95.10%
Transformer AC-DC
Converter Transformer 3 Phase RPM 3304 rpm Maximum frequency 167.5 Hz
AC-Output
Fully suspended motor with partly
Type of suspension suspended gear drive
DC-AC Battery
Motor Converter DC
Output Class of insulation Class 220
Transformer
AC-DC Rectifier Weight of traction motor drive with 990 kg +/- 3%
half coupling
2x3 Phase motors Weight of traction motor drive: weight 480 kg +/- 5%
AC-DC DC-AC of gear unit with half coupling
Converter Motor Converter
Axle
Brush -ve return through wheel and running rail Type of cooling Self ventilated, Air cooled
Maximum temperature index of 237º C
Executive chair cars with golden winding insulation
coloured fire resistant fabric and
pink/purple head rest. Seats can be Overall dimensions 1431(L)x1157(W)x701(H)
rotated to face each other. Seats
can be rotated by 180º. Vande Bharat (Train-18)
Material of gear and pinion Case hardened steel 18CrNiMo76
Constructional details: rotor bar and Rotor bar and end ring joints protect-
rotor end ring arrangement ed by use of high strength alloy
All values mentioned are taken from “Introductory Handbook on Train 18” shrink ring. All over hangs suitably
IRCAMTECH/TRAIN-18/NOV-2018 supported.
Prepared by: Pranil Tankhiwale, Hareesh Sahu, Manish Lahare, Aashay Dabli | Batch: RJE/2022-23/02 MECH (C&W)
MDZTI Mechanical, Kharagpur
