Implant training report-Railway coaches

1. INPLANT TRAINING
AT
MATUNGA WORKSHOP
(COACH CARE CENTRE,MTN)
 MOHAMMED NOOR PATEL
 14224
 EE-5G
Various types of
coaches and their
electrical aspects

2.  INTRODUCTION OF INDIAN RAILWAYS
 LINKE HOFMANN BUSCH (LHB) COACHES
 ALTERNATOR
 RECTIFIER CUM REGULATOR UNIT
 BATTERY AND BATTERT CHARGING TERMINAL
 POWER SUPPLY IN AC COACHES
 TECHANICAL DETAILS
CONTENTS

3.  It is one of the world's largest railway networks comprising
115,000 km of track over a route of 65,000 km (40,000 mi) and
7,500 stations.
 As of December 2015 it transported over 25 million passengers
daily .
INTRODUCTION

4. LHB COACHES
IV COUPLER
EXT.
SUPPLY
SOCKET
BATTERIES
BATTERY FUSE BOX
AC PACKAGE UNIT
FRESH AIR
INTAKE
EXHAUST
FANS

5. GENERAL FEATURES OF LHB COACH
 MICRO-PROCESSOR BASED AC PACKAGE AND PUMP UNIT
 HIGH OPERATING SPEED(UPTO 180 Km/hr)
 ANTI-TELESCOPIC
 DISC BRAKE SYSTEM
 WHEEL SET EARTHING DEVICE
 MODULAR INTERIOR

6. ALTERNATOR
Connection Star
Generated voltage 97V AC
Rating 4.5kW
No. Of V grooves 4
The alternator is mounted between two wheels. The V
belts are attached in the V grooves on the pulley
attached to the shaft and the axis of the wheel.

7. PERMANENT MAGNET ALTERNATOR
 COMPACT SIZE AND WEIGHT (280Kg)
 REQUIRED LESS MAINTENANCE
 HIGHER EFFICIENCY (upto 75%)
 VERY LOW VOLTAGE & CURRENT RIPPLE
 COMPATIBLE WITH INVERTED & VRLA

8. RECTIFIER CUM REGULATOR UNIT (RRU)
Speed Range 550 RPM to 2500 RPM
Voltage 124V
Rating 4.5kW
Full Load Current 38A
 RRU is connected just beside the alternator to rectify
the output of the generator.
 The RRU has following functions:
1. To rectify the 3-phase AC output of the alternator
through DC full wave bridge rectifier.
2. Regulator the voltage generated by the alternator at
the set value.
3. Regulating the output current.

9.  The output of the RRU is given to battery box to charge the
battery .
 In a non AC coaches a battery box consist of 18
cells(6V/120Ah each) ,In AC coaches 2 battery box 56
cells(2V/1100Ah each) used.
 BCT is provided for external charging of the batteries at
stations or maintenance lines.
 Used Battery in train is VRLA (Valve Regulated Lead Acid)
types advantages -
1. Topping up with water is not required.
2. Periodical checking of specific gravity is not required.
Battery and Battery Charging Terminals: -

10. 110 V , 70 Ah , VRLA BATTERY MAIN FEATURES
CONSTRUCTIONAL FEATURES
• PURE LEAD -TIN PLATE ( THIN )
• 12 VOLTS BATTERY MODULE
• CAN BE MOUNTED IN ANY ORIENTATION
PERFORMANCE FEATURES
• WIDE TEMPERATURE RANGE : -40 Deg.C to +55 Degree C
• 8+ YEARS FLOAT LIFE @ 25 Degree C
• HIGH DISCHARGE RATE @ 25Degree C
• RAPID RECHARGE
• DEEP DISCHARGE RECOVERY

11. 110V,70AH VRLA LIGHT WEIGHT BATTERIES
9 MODULES OF 12 VOLTS EACH
TOTAL WEIGHT 235 Kgs

12.  Rotary Junction Box is provided inside the coaches.
 It is used to arrange and control the power supply to various circuit of the
coaches (e.g. light, fan) with the help of rotary switches and HRC fuses.
 4 Rotary switches are connected in Rotary Junction Box:
1. The first switch is used to supply 70% light load in coach.
2. The second switch is used to supply 30% light load in coach.
3. . The third switch is used to supply fan load in coach.
4. The fourth switch is known as EFT switch.
ROTARY JUNCTION BOX

13.  It is provided at the both end of the coach to feed the additional
supply to the adjacent coach in case of emergency.
 Supply from the healthy coach may be extended to him/dark
coach by connecting wire(1.5x2 meter) for supply to the
positive and negative terminals of the EFT.
Emergency Feed Terminals (EFT)

14. AC COACH
 Each coach is equipped with two compact roof-mounted air-
conditioning units
 Cooling capacity of approximately 2x22.5 KW which are controlled by
a microprocessor.
 The operating voltage of the unit is 3 phase, 415 V, 50 Hz.
 Each unit has 2 refrigerant circuits with compressors, condensers with
Copper pipes and Aluminum fins, evaporators and condenser fans.

15. ROOF MOUNTED AC PACKAGE UNIT
CAPACITY
COOLING - 22.5KW ( 6.4 TON )
HEATING - 6.1KW
•POWER INPUT - 17KVA
•OPERATING VOLTAGE - 3 PHASE,415V,50HZ
•WEIGHT - 630KG
SALIENT FEATURES
•NTC TYPE TEMP. SENSOR.
• MICRO-PROCESSOR CONTROL .
•HUMIDITY CONTROL

16. ROOF MOUNTED AC PACKAGE UNIT
CONDENSOR FANS
AIR INTAKE FOR
THE CONDENSOR FANS

17. 400 AMPS INTERVEHICLE COUPLER

18. 60 KVA TRANSFORMER WITH EPOXY ENCAPSULATION
TERMINAL
BOARD
PERFORATED
SS HOUSING
MOUNTING
ARRGT. WITH
AVM’S

19. • TYPE - EPOXY COATED ENCAPSULATED , WATER PROOF
WINDING
• RATING- 3ø , 50Hz , 60KVA, 750/415V
• NATURAL AIR COOLED
• WEIGHT - 335KG ( Max.)
60 KVA TRANSFORMER FEATURES

20. CONCLUSION

21. Thank You