lhb ac buffet car
TRANSCRIPT
Presentation By:
Ankur Mahajan
Tr. J.E. Electrical Design
LHB HOT BUFFET AC COACH
INTRODUCTION
Linke Hofmann Busch (LHB) coaches are the
passenger compartments of Indian Railways that
have been developed by Linke-Hofmann-Busch of
Germany.
Produced by Rail Coach Factory in Kapurthala, on
the Broad Gauge (1676 mm) network of Indian
railways, since 2000.
TYPES OF LHB COACHES
LGS = Second class self-generating
LSCN = Second class 3-tier sleeper (72 berths)
LWACCW = AC2 Air-conditioned 2-tier sleeping-car (52 berths)
LWACCN = AC3 Air-conditioned 3-tier sleeping-car (72 berths)
LWFAC = AC1 Air-conditioned first class sleeping-car (24 berths)
LWFCZAC = Air-conditioned executive chair car (56 seats)
LWLRRM = Luggage/generator/brake van
LWSCZAC = Air-conditioned chair car (78 seats)
LWSCZ = Chair car
LWCBAC = Air-conditioned pantry/kitchen/buffet car
BLOCK DIAGRAM
FLOW CHART
Pump1, Pump 2
with MCB 1-1.6 A
Local Main Supply,
Fuse 80A
Supply Net 1
Main Fuse 80A
Main Contactor S1K02
Main Transformer
750/415 V
Main Fuse 100A
Insulation Relay
MMR, 24V DC
MMR
Battery
Charger
Battery Diagnosis ,6A
fuse
Light control, 10A fuse
Supply Net 1
Main Fuse 80A
Main Contactor S1K01
Main Transformer
750/415 V
Main Fuse 100A
Insulation Relay
MMR, 24V DC
415, 3Phase
230V, 1 Phase
RMPU 1
FLOW CHART(CONT.)
110V, AC
1 KVA Xmer
Coach Light with
10A fuse
RMPU1
BOOTLE COOLER ,400W
CHIMNEY-3,200W
INSECT KILLER, 20W
HOT DISP., 1.5KW
HOT DISP., 1.5KW
BURNER-4,9.9KW
HOT CASE,1.5KW
INSECT KILLER, 20KW
WATER BOILER-2&3, 3KW
BURNER-2,2KW
REFRIGERATOR, 300W
RMPU2
WATER BOILER-1, 3KW
BURNER-1&3,2KW
DEEP FREEZER, 330W
CHIMNEY-1&2,200W
WATER FILTER,200W
OTG-1&2, 1.2KW
EXHAUST FAN-2NO’s
UNDER FRAME WIRING
From To Cable Size Colour
FJB FJB 120 R,Y,B
95 BLK
2.5 CH
SBC FJB 50 R,Y,B,BLK
SBC BULK SUPPLY 25 R,Y,B,BLK
SBC TRANSFORMER 25 R,Y,B,BLK
50 R,Y,B,BLK
SBC PUMP 4X1.5 R,Y,B,GNYE
2X1 CH
SBC LEVEL SENSOR 3X1.5 W,CH,R
UNDER FRAME WIRING
SBC +VE FUSE 25 CH
10 CH
1.5 CH
BATTERY -VE FUSE 50 W
BATTERY +VE FUSE 50 CH
1.5 R, BLK
-VE FUSE SBC 25 W
10 W
1.5 W
SBC SPEED
SENSOR
3X1 SHIELDED W,C
3X1 SHIELDED W,C
3X1 SHIELDED W,C
3X1 SHIELDED W,C
60 KVA TRANSFORMER
It is Step Down Transformer
Configuration- STAR -STAR
Step Down 750 V to 415 V
MONO BLOCK SELF PRIMING PUMP
ASSEMBLY AND WATER TANKS
Pumps- 0.375 KW, 415V, 3 Phase
LOCAL MAIN SUPPLY, 415 Volts
Used to provide external supply to the coach for pre-cooling the
coach standing in the shed
WHEEL SET EARTHING
Allow the leakage currents to earth through wheel, so as to
protect axle bearing.
BATTERY, 70Ah
BATTERY BOX
+ve FUSE BOX
9 x12V Cells of VRLA Battery
-ve FUSE BOX
Inter Vehicular Coupler
Seven pin plug.
Three pin for three
phase- R , Y, B
One Pin for
Neutral
One pin for Earth
Two control pin for
safety loop
SWITCH BOARD CABINET
Disconnecting and earthing device
Regulated battery charger
Emergency battery charger
Contactors and relays
1 KVA transformer for lights
Wheel skid protection
24 V dc to dc convertor
Microprocessor based controller
DISCONNECTING AND EARTHING DEVICE
6.5KW, REGULATED BATTERY CHARGER
2.5 KW, EMERGENCY BATTERY CHARGER
CONTACTORS AND RELAYS
1 KVA, SINGLE PHASE STEP DOWN
TRANSFORMER FOR LIGHTS, 220/110V
WHEEL SKID PROTECTION
PANTRY EQUIPMENTS
Insect Killer
Water BoilerRefrigerator
Chimney
Electric Hot plate
Cooking Table
Bottle Cooler and Deep Freezer
Capacity 230Ltrs
Temp. range -18 to-25
degree cent.
Rating 330watt
Operating Voltage 230 V
Capacity 90Ltrs
Temp. range 3 to 5 degree
cent.
Rating 400watt
Operating Voltage 230 V
Deep Freezer Bottle Cooler
Hot Case Water Boiler
Capacity 140 meals
Temp. range 30 to 110 degree cent.
Rating 1.5 KW
Operating Voltage 230 V
Compartments 03
Capacity 30Ltrs
Temp. range 40 to 110
degree cent.
Rating 3 KW
Operating Voltage 230 V
Electric Hot Plate
Rating 2 KW (4 No.)
5 KW (1 No.)
Rotary Switch 16Amps
63 Amps
Operating Voltage 230 V
NEW DEVELOPMENTS
EXHAUST TYPE CHIMNEY FOR
LHB PANTRY
• CHIMNEY PROVIDED EARLIER HAD NO
EXHAUST TO THE ATMOSPHERE
• INEFFECTIVE TO REMOVE FUMES &
SMOKE – POTENTIAL FIRE HAZARD
• CHIMNEY WITH EXHAUST ON COACH
ROOF DEVELOPED
• REGULAR CUT-IN FROM 2014-15
MODIFIED CHIMNEY
CHIMNEY HOOD
EXHAUST
EXHAUST
AIR DUCT
COVER WITH LOCKS PROVIDED ON ELECTRICAL PANELS OF HOT
PLATES TO AVOID OPERATION BY UNAUTHORISED PERSONS.
MODIFICATION IN HOT BUFFET CAR
ROAD AHEAD
• TO ENHANCE SAFETY RESISTIVE HEATING FOR
COOKING/FRYING IS REPLACED BY INDUCTION
HEATING BASED COOKING/ FRYING
• PO FOR TWO COACH SETS PLACED
• MATERIAL EXPECTED IN MARCH-2015
DEVELOPMENT OF INDUCTION
TYPE HEATING IN HOT BUFFET
CAR
POSITION RESISTIVE HOT PLATE
REPLACED BY INDUCTION HOT PLATE
LEFT HAND SIDE 2KWX2 2KWX2
CENTRE 2KWX2 2KWX2
RIGHT HAND SIDE 2KWX11.1KWX3
7KWX1 (3 PHASE)2KWX1