AC-DC EMU Maintenance Manual PDF

CAMTECH/E/13-14/MM AC-DC EMU/1.0 1 CHAPTER 4 TRACTION MOTOR 4.1 TRACTION MOTOR Four number of traction motors are provided in one motor coach. Two pairs...

CAMTECH/E/13-14/MM AC-DC EMU/1.0 1 CHAPTER 4 TRACTION MOTOR 4.1 TRACTION MOTOR Four number of traction motors are provided in one motor coach. Two pairs of traction motors are connected across two different PWM inverters. 4.2 TECHNICAL DETAILS Type Designation : 1TB2022-0TA03 Make : M/s Siemens Electrical data Number of Poles : 6 Specific Electric Loading : 476 A/cm Flux Density in Air Gap : 0.8 T Flux Density in Stator Yoke : 1.0 T Flux Density in Rotor Yoke : 0.75 T Thermal Class : 200 Connection : Star Supply cable : 1 x 35 mm2 per phase Mechanical Data Air gap: : 1.5 mm Air ventilation: : 0.25 m2/s Stator bore dia: : 325 mm Rotor diameter: : 322 mm Length of the core : 350 mm Maximum rating Max. Motor speed (fully worn wheel) : 3452 rpm Max. torque (new wheel) : 2903 Nm Max. Power (at tractive effort curve) : 84 kW Maintenance Manual for AC-DC EMU (Siemens) Chapter 4 2 CAMTECH/E/13-14/MM AC-DC EMU/1.0 4.2.1 Gear ratio 5.71 (97 teeth gear wheel / 17 teeth pinion) Torque Fundamental Cos Φ Efficiency motor current (Power Factor) DC-Mode 1147 Nm 167 A 0.81 95 % AC-Mode 1147 Nm 150 A 0.79 95 % 4.2.2 Ratings Parameter Continuous Operation One Hour Rating Two Minute Rating Voltage 932 V 993 V 1043 V Current 200A 211A 223A Power 240 kW 270 kW 300 kW Power Factor 0.79 0.79 0.79 Frequency 101.5 Hz 101.5 Hz 101.5 Hz Speed 2000 rpm 2000 rpm 2000 rpm Torque 1147 Nm 1290 Nm 1434 Nm Efficiency 94% 93.5% 93.5% 4.2.3 Maximum Starting Current (0 to 950 rpm up to 14 seconds): New wheel : 276A Half worn wheel : 267 A 4.2.4 Motor Bearings: DE : Cylindrical-Roller Bearing F-809035.01.NU-J20AA Oil Lubricated/ Electrically Insulated) Make : FAG Lubrication oil : Gear Oil Min qty required : 10 mm3/h NDE : Deep Groove Ball Bearing DIN 43283-6316.808916.J20AA (Grease Lubricated/ Electrically Insulated) Make : FAG Bearing Grease : Shell RetinaxLX2 4.2.5 Motor Suspension Unit (Nose-Suspension) Bearings: DE : Tapered Roller Bearing 566566.J20AA (Grease Lubricated/ Electrically Insulated) Make : FAG Bearing Grease : Shell RetinaxLX2 NDE : Tapered Roller Bearing 809055.J20AA (with flange) (Grease Lubricated/ Electrically Insulated) Make : FAG Bearing Grease : Shell RetinaxLX2 Chapter 4 Maintenance Manual for AC DC EMU (Siemens) CAMTECH/E/13-14/MM AC-DC EMU/1.0 3 4.2.6 Gear& Pinion: Make : M/s Flender Type : Single slant toothed spur gear 2LB6095-3AA57 Material of pinion and gearwheel : 17rNiMo6 Material of gear case : casting material GGG40 Gear Ratio : 97/17 Gear Oil : Shell Spirax AX 80W-90 or A 85W-145 4.2.7 Maintenance Check List: Stator Resistance : 85.35 mΩ + 5% at 20° C With 10 A DC Insulation Resistance : 2 MΩ with 500 V DC (Used) 10 MΩ with 500 V DC (commissioning) High Voltage Test : 2100 V(AC 50/60 Hz) /1 min (Used) 3680 V(AC 50/60 Hz) /5sec (commissioning) 4.2.8 Oil Level Initial Quantity Refilling Quantity Motor NDE Bearing 0.15 kg/Bearing 26 g/Bearing Nose Suspension Bearing 1.2 Kg/Bearing 300 g/Bearing Gear Oil 2.8 litre (approx) 2.5 litre (approx) Maintenance Manual for AC-DC EMU (Siemens) Chapter 4 4 CAMTECH/E/13-14/MM AC-DC EMU/1.0 4.2.9 Earth Return Brush Make : M/s Shunk metal and Carbon (India ) Pvt. Ltd. Type : B 1726 10 No of working brushes : 2 No of safety brushes : 2 Brush Measurement : 20x40x55mm Brush grade : BSQR Nominal Brush pressure : 300 cN/cm2 (4.35 PSI) Continuous load : Effective working current: : 520 A (with 2 brushes) Max. short term overload: 1 hour load(1.5 x) : 780 A 100 ms Load (15 x) : 5200A Average brush wear : 3.5 mm/1,00,000 km Wear Height : 33mm Chapter 4 Maintenance Manual for AC DC EMU (Siemens)