Terminology used in a Caution Order with their Meanings

Terminology used in a Caution Order with their Meanings

1. O.E.S. - OBEY ENGINEERING SIGNAL 2. C.T.R. - COMPLETE TRACK RENEWAL 3. T.R.R. -  THROUGH RAIL RENEWAL 4. L.W.R. - LONG WELDED RAIL 5. C.W.R. - CONTINUOUS WELDED RAIL 6. T.S.R. - THROUGH SLIEEPER RENEWAL 7. S.W.R. - SHORT WELDED RAIL 8. U/S -  UNSERVISABLE SLEEPER 9. S.E.J. - SWITCH EXPANSION JOINT 10 U.C. -  UNCONSOLIDATED (LESS BALLAST) 11. S.D.I.R. -  STOP DEAD IF REQUIRED 12. P.B.R. - PULLING BACK OF RAILS 13. R.A.T. - RAILWAY AFFECTED TANK 14 T.F.R. - THROUGH FITTINGS RENEWAL 15. T.B.T.R. -  THROUGH BRIDGE TIMBER RENEWAL 16. T.R.R. - THROUGH WELD RENEWAL 17. T.T.R. - TROUGH TURNOUT RENEWAL 18. T.B.R. - THROUGH BALLAST RENEWAL 19. B.C.M. -  BALLAST CLEANING MACHINE 20. D/S DEEP SCREENING 21. PQRS - PLASSER QUICK RELAYING SYSTEM 22. T.R.T. - TRAIL RELAYING TRAIN 23. R.O.B. - RAIL OVER BRIDGE 24. I.M.R. - IMMEDIATE REMOVAL RAIL (WITHIN 2 Or 3 DAY WHEEL BURNT RAILS)

1. TECHNICAL DATA & ABBREVIATIONS - ACT (RS) ABB Loco (English)

ABBREVIATIONS 

ALG Drive Control Unit - Drive Inverter and Line converter Control

ASC Driver Converter Control

ASR Drive Converter Key switch BLCP Spring-loaded switch for Main compressors BLDJ Spring-loaded switch for Main circuit breaker BLHO Spring-loaded switch for Hotel load(notactive on WAG-9) BLPR Switch Headlights BPCS Illuminated push-button, green for Constant speed control BPFA Illuminated push-button,yellowfor acknowledgement all fault Messages BPFL Illuminated push-button, yellow Emergency flashlight BPPB Illuminated push-button, red for parking brake BPVG Push-button, green for Vigilance BPVR Push-button, illuminated yellow for resetting vigilance BUR Auxiliary Converter BZ-V-O-F Buzzer for vigilance, over speed and fire CEL Central Electronics CSC Constant Speed Control DDS Diagnostic Data Set FLG Vehicle Control Unit GTO Gate Turn Off HB Cubicle Auxiliary Circuits HBB Processor

HRA Switch Cab blower/heating LSAF Indication lamp - red for Train parting LSCE Indication lamp-amber for over temperature CEL LSDJ Indication lamp, red for Main Circuit Breaker LSFI indication lamp, red for Fault message, priority 1 LSHO Indication lamp, yellow Hotel load (Not active on WAG-9) LSP Indication lamp, yellow for Wheel slipping LSVW Indication lamp, yellow for Vigilance Warning MCB Main Circuit Breaker MCE MICAS-S2 Control Electronics MEMOTEL Speed Recorder and Indicator MR Machine Room MUB Over voltage Protection Unit NSR Line Converter Pan Pantograph PCLH Socket Hand Lamp PP Pneumatic Panel SB Cubicle Control Circuits SLG Converter Control Unit SR Traction Converter SS Subsystem STB Low Voltage Cubicle Control TE/BE Tractive/braking effort UBA Voltmeter Battery Voltage VCB Vacuum Circuit Breaker - Main Circuit Breaker ZBAN Spring Loaded Switch- Banking operation ZBV Train Bus Administrator ZLC Switch for Driver’s cab lighting ZLDA Switch for Assistant driver’s desk Illumination ZLDD Switch for Driver’s desk illumination ZLFR Switch for Marker lights, red ZLFW Switch for Marker lights, white ZLH Switch for Socket hand lamp ZLI Switch for Instrument lighting ZPRD Switch for Headlights, intensity ZPT Spring-loaded switch for Pantograph ZTEL Switch for Max.Traction limitation ZK DC link

WDG-3A - लोको पर लगे विधुत उपकरणों के संक्षिप्त नाम ( Abbreviation )

 Abbreviation 

S.No                                  Abbreviation                                     Full Name

1.                                            A9                                       Automatic brake valve

2.                                            AG                                      Auxiliary Generator

3.                                            AC                                       Alternating current

4.                                           ACCR                            Armature current control reactor

5.                                          AGFB                            Auxiliary Generator field breaker

6.                                          AFPB                               Additional fuel pump breaker

7.                                           AR                                           Auxiliary reservoir

8.                                           BA                                            Battery ammeter

9.                                          BAS                                      Battery ammeter shunt

10.                                        BAP                                       Booster air pressure

11.                                         BC                                           Brake Cylinder

12.                                       BHEL                             Bharat Heavy Electricals Ltd.

13.                                       BKBL                              Dynamic braking blower motor

14.                                        BKR                                           Braking relay 

15.                                       BKT                                      Braking and Traction switch

16.                                        BP                                                  Brake pipe

17.                                        BS                                           Battery knife switch

18.                                        CB                                             Circuit breaker

19.                                       CBC                                       Centre buffer coupler

20.                                      CCM                                 Crank case exhauster motor

21.                                       CEB                                Crank case exhauster breaker

22.                                       CK1,2,3                                   Cranking contactor

23.                                         COC                                           Cut out cock

24.                                        CKC                                    Main Cranking contactor

25.                                        CKR1,2                                      Cranking relay

26.                                       CPR1,2                                    Arc separation rectifier

27.                                     CVR                                                    C-valve relay

28.                               DBB/DEB                               Dust blower breaker/ Dust Exhaust breaker

29.                                       DC                                                             Direct current

30.                                     DLCB                                                    Dome light circuit breaker

31.                                    DLW                                              Diesel locomotive workshop Varanasi

32.                                      DMW                                   Diesel Modernization workshop, Patiala

33.                                        DMR                                              Dead men’s relay

34.                                      ECC                                                    Eddy current clutch coil

35.                                       ECP                                                     Engine control panel

36.                                       ECS                                                     Engine control switch

37.                                      EH                                                              Electro hydraulic

38.                                   ETS1,2,3                                            Engine temperature switch

 39.                                   ERR                                                           Engine running relay

40.                                ESLP                                                                  Engine start lamp

41.                                  ESR1,2, 3,4                                                       Engine speed relay

42.                                  FP                                                                       Feed pipe

43.                                   FPB                                                             Fuel pump breaker

44.                                  FPC                                                             Fuel pump contactor

45.                                FPM                                                                Fuel pump motor

46.                             FS21-26                                                      Field Shunt Contactor

47.                                FSR                                                                    Field Shunt Relay

48.                               FIP                                                               Fuel Injection Pump

49.                                FL                                                                     Flasher Light

50.                            FTTM                                             Front Truck Traction Motor ( Blower)

51.                              GFC                                                       Generator Field Contactor

52.                              GR                                                                   Ground Relay

53.                     GRS/GRCO1,2                         Ground Relay Switch/ Ground Relay cut out Switch

54.                         GFCO                                                           Generator Field Cutout Switch

55.                       GFOLR                                                   Generator Field Over Load Relay

56.                         HLB                                                                Head Light Breaker

57.                           HL                                                                        Head Light

58.                      HLPR                                                              Head Light Resistance

59.                          HP                                                                         Horse Power

60.                      IRAB1                                                      Indian Railway Air Brake System

61.                     Kmph                                                                  Kilometer per hour

62.                       LA                                                                          Load Meter

63.                         LAS                                                              Load Ammeter Shunt

64.                      LCP                                                            Load Control Potentiometer

65.                     LPB1,2                                                        Cab Light Circuit Breaker

66.                     LWS                                                                Low Water Switch

67.                    MH                                                                     Master handle

68.                   MB1                                                             Main Battery Breaker

69.                 MB2                                                             Main Control Breaker

70.                  MCB1&2                                                       Master Control Breaker

71.                 MCO                                                                  Motor Cutout Switch

72.                MFPB1&2                                                    Master Fuel Pump Breaker

73.                 MR                                                                        Main Reservoir

74.             MTR                                                                 Manual Transition Switch

75.              MU                                                                       Multiple Unit

76.             MUSD                                                        Multiple Unit Shutdown Switch

77.                 NCI                                                           Normally Close Interlock

78.              NOI                                                             Normally Open Interlock

79.              OPS                                                                 Oil Pressure Switch

80.               OSTA                                                    Over Speed Trip Assembly

81.                PC                                                                  Power Contactor

 82.               PCS                                                      Pneumatic Control Switch

83.             P1,31,21,2,32,22                                       Parallel Power Contactor

84.             PDR                                                        Power Diode rectifier Blower

85.             PWM                                                          Pulse Width Modulator

86.              R1&2                                                         Radiator Fan Contactor

87.              RCD                                                          Reverse Current Diode

88.              REV                                                       Reverser Contactor

89.             RFCB                                               Radiator Fan Circuit Breaker

90.               RH                                                           Reverser Handle

91.              RPM                                                   Revolution Per Minute

92.             RTTM                                                Rear Truck Traction Motor ( Blower)

93.             S1,31,21                                                Series Power Contactor

94.             SAR                                                     Safety Auxiliary Relay

95.           SAR1,2,3,4,5                                        Speed Adjusting Rheostat

96.             SR                                                                 Signal Relay

97.             SLP                                                             Signal Lamp

98.             SH                                                          Selector Handle

99.            SPM                                                         Speedometer

100.             TA                                                     Traction Alternator

101.             TG                                                Traction Generator

102.            TH                                                    Throttle Handle

103.           TM                                                Traction Motor

104.          TR                                                Transition Relay

105.            TRP                                                Transition Panel

106.            TSC                                            Turbo Super Charger

107.             TSSR                                   Transition Speed Sensing Relay

108.               TET                                Transition ExcitationTransformer

109.             VCR                                         Voltage Control Reactor

110.              VRP                                         Voltage Regulating Panel

111.             WW                                                 Wood-Ward

112.              WSR                                           Wheel Slip Relay

113.             WSRR                               Wheel Slip Relay Resistance

114.              TCR                               Température control Resistance

115.            MPCB                                Microprocessor circuit breaker

116.             PLPB                                  Pre-lubrication pump breaker

117.               ADB                                         Analog distribution box

 118.            RDB                                              RPM distribution box

119.             EXPR                                     Exciter Generator Protection Relay

120.             AGPR                                       Auxiliary Generator Protection Relay

121.               CMR                                                    Compressor relay

122.                AFLR                                            Auto flasher light Relay

123.                     VCD                                        Vigilance control device

124.                  VCDR                                    Vigilance control device Relay

125.                 SLBR                                           Self load Box relay

 126.                 MVR                                            Magnet valve Relay

127.               TANGI                            Traction alternator neutral to ground current sensor

128.             BANGI                                Battery negative to ground current Sensor

129.                 EOT                                          Engine oil temperature sensor

130.                 BATI                                                Battery current sensor

131.                  AAT                                       Ambient air temperature sensor

132.                 MRPR                                  Main Reservoir pressure sensor

133.                TMAI                                  Traction motor armature current sensor

134.                TAAI                                  Traction Alternator armature current sensor

135.                 APR                                                Altitude pressure sensor

136.                 TAV                                       Traction Alternator voltage sensor

137.               EXAI                                  Exciter generator armature current sensor

138.               EXFI                                             Exciter generator field current sensor

139.               LCPV                                        Load control potentiometer voltage sensor

140.               EWT                                   Engine Water temperature senser

141.               ESS                                              Engine Speed senser

 

 

 

 

Abbreviations & Silent Feature of Indian Railway

Coaching Stock Codes

Goods Stocks Codes

Silent Feature Of Goods Wagon

Silent Feature Of Coaching Stock

Silent Feature Of Brake Power Certificate

Silent Feature Of Brake Power Certificate

What does "NRM" stand for? "CLW"? Etc. etc.

Loco, coach, and wagon manufacturers whose products have been used in India
ABB	ASEA Brown-Boveri, Switzerland
ALCO	American Locomotive Co., Schenectady, NY, USA
BBUNL	Bharat Bhari Udyog Nigam, Ltd.
BEML	Bharat Earth Movers Limited
BHEL	Bharat Heavy Electricals Limited
BLW	Baldwin Locomotive Works, USA
BP	Beyer Peacock, Manchester
BSCL	Burn Standard Co., Ltd.
BTH	British Thomson Houston
BWEL	Bharat Wagon and Engineering Co., Ltd.
CLW	Chittaranjan Loco Works,
also	Canadian Locomotive Works (now Bombardier)
DLW	Diesel Loco Works, Varanasi
EBW	E. B. Wilson
EE	English Electric
EMD	General Motors' Electro-Motive Division, USA
GEC	General Electric Corporation, UK
GM	General Motors, USA
GMD	General Motors Diesel, Canada
HL	Hawthorn-Leslie, Newcastle-upon-Tyne, UK
ICF	Integral Coach Factory, Perambur
ISW	Indian Standard Wagon Works, Satna
KS	Kerr Stuart, Stoke-on-Trent, UK
LHB	Linke Hoffman Busch GmbH, Germany
MLW	Montreal Locomotive Works
MV	Metropolitan Vickers
NBL	North British Locomotive Co., Glasgow
NW	Nasmyth Wilson, Manchester
O&K	Orenstein & Koppel, Berlin
RCF	Railway Coach Factory, Kapurthala
RS	Robert Stephenson, Newcastle-upon-Tyne, UK
SFAC	Societe des Forges et Ateliers, Creusot
SIG	Schweirische Industrie Gesselschaft
SLM	Schweizerische Lokomotiv- und Maschinenfabrik, Winterthur, Switz.
TELCO	Tata Engineering and Locomotive Co.
USATC	US Army Transportation Corps., USA
WB	William G. Bagnall, Stafford, UK
WIL	Wagon India Ltd. (an intermediary firm for wagon contracts)

 

Organizations & Corporations
AIRF	All-India Railwaymen's Federation (union organization)
BMRTC	Bangalore Metropolitan Rail Transit Corporation, Ltd.
BPT	Bombay Port Trust (later MPT)
CMC	Computer Maintenance Corporation, also Calcutta Metro Corporation
COFMOW	Central Organization for the Modernization of Workshops
CONCOR	Container Corporation of India
COOIS	Central Organization for Operations Information Systems
CORE	Central Organization for Railway Electrification
COS	Central Office of Standards (predecessor of RDSO)
CRIS	Centre for Railway Information Systems
CTC	Calcutta Tramways Corporation
DCW	Diesel Component Works, Patiala
DMRC	Delhi Metro Rail Corporation
ELRTS	Elevated Light Rail Transit System (proposed, Bangalore)
FNRM	Friends of the National Rail Museum
FROA	Federation of Officer's Associations (umbrella organization for railway officers' groups)
IPWE	Institution of Permanent Way Engineers
IRAS	Indian Railway Accounts Services (financial management)
IRC	Indian Railways Corporation (proposed)
IRCA	Indian Railway Conference Association (body that issues inspection guidelines, allots wagon codes, inspects workshops)
IRCON	Indian Railways Construction Company, now IRCON International Ltd., which takes on contract work to build railways in other countries (Iraq, Nepal, Indonesia...).
IRCOT	Indian Railways Central Organization for Telecom
IRCTC	Indian Railways Catering and Tourism Corporation
IREB	Indian Railways Executive Board (proposed)
IRFC	Indian Railways Finance Corporation
IRIATT	Indian Railways Institute of Advanced Track Technology
IRICEN	Indian Railways Institute of Civil Engineering, Pune
IRIEEN	Indian Railways Institute of Electrical Engineering, Nasik
IRIMEE	Indian Railways Institute of Mechanical and Electrical Engineering, Jamalpur
IRISET	Indian Railways Insitute of Signal Engineering and Telecommunications, Secunderabad
IRMS	Indian Railway Medical Services
IRPHA	Indian Railway Public Health Association
IRPS	indian Railway Personnel Services (human resources)
IRRA	Indian Railways Regulatory Authority (proposed)
IRSE	Indian Railway Service of Engineers
IRSEE	Indian Railway Service of Electrical Engineers
IRSME	Indian Railway Service of Mechanical Engineers
IRSS	Indian Railway Stores Services (inventory control)
IRSSE	Indian Railway Service of Signal Engineers
IRSTE	Indian Railway Signal and Telecom Engineering
IRTS	Indian Railway Traffic Services (management, marketing)
ISRS	Indian Steam Railway Society
ITB	International Tourist Bureau (New Delhi)
KRCL	Konkan Railway Corporation, Ltd.
KRDC	Konkan Railway Development Corporation
K-RIDE	Rail Infrastructure Development Corporation (Karnataka) Ltd.
KRIST	Konkan Railway Institute for Staff Training
KMRT	Kolkata Mass Rapid Transit
LRDSS	Long Range Decision Support System
LRTS	Light Rail Transit System (proposed, Kolkata)
MPT	Mumbai Port Trust (see BPT)
MRSP	Model Railway Society of Pune
MRTS	Mass Rapid Transit System (Chennai)
MRVC	Mumbai Rail Vikas Corporation
MTP	Metropolitan Transport Project (Railways), Bombay
MUTP	Mumbai Urban Transport Project (a World Bank project)
NFIR	National Federation of Indian Railwaymen (union organization)
NRM	National Rail Museum, New Delhi
PRCL	Pipavav Railway Corporation Ltd.
NRMU	National Railway Mazdoor Union (railway employees' trade union)
RB	Railway Board
RBSS	Railway Board Secretariat Services (part of Railway Ministry)
RCIL	Railtel Corporation of India, Ltd.
RDSO	Research, Design and Standards Organization
ROMA	Railway Officers' Medical Association
RPF	Railway Protection Force (also see below, Miscellaneous)
RSC	Railway Staff College, Vadodara
RITES	Rail India Technical and Economic Services, which takes on planning, design, and operational work in other countries (Angola, Mozambique, Zimbabwe, Botswana, Mexico, Zambia, Nepal, etc.).
RTRC	Railway Testing and Research Centre (a predecessor of RDSO)
RWWCO	Railway Women's Welfare Central Organization
RVNL	Rail Vikas Nigam Ltd.
SGE	Siemens and General Electric Railway Signal Co., Ltd.
WAP	Wheel and Axle Plant, Yelahanka (also a loco classification :-) )

 

Trains
AP	Andhra Pradesh Express
DQ	The Deccan Queen
GT	Grand Trunk Express
JJ	Jayanti Janata Express
KK	Karnataka-Kerala Express
TN	Tamil Nadu Express
POW	Palace on Wheels

 

Railways (former and current)
ADCR	Agra-Delhi Chord Railway
BAR	Bengal Assam Railway (in 1947, renamed East Bengal Rly., and in 1961, renamed Pakistan Eastern Rly.)
BB&CI / BB&CIR (BBCIR)	Bombay, Baroda, and Central India Railway
BCR	Bengal Central Railway
BDR	Bengal Dooars Railway, also Bankura Damodar Railway
BESR	Bilaspur - Etawah State Railway
BLR	Barsi Light Railway
BMR	Burma Mines Railway
BNR	Bengal Nagpur Railway
BNWR	Bengal North-Western Railway
BPR	Bengal Provincial Railway
BR	Burma Railway
BRC	Burma Railways Corporation
CBR	Cooch Behar Railway
CGR	Ceylon Government Railway
CR	Central Railway
CSER	Calcutta and South-Eastern Railway
DHR	Darjeeling Himalayan Railway
DMSR	Dhond-Manmad State Railway (Dhond = Daund)
DRLR	Dehri Rohtas Light Railway
DSR	Drangdhara State Railway
EBR	East Bengal State Railway
ECR	East Coast Railway
EIR	East Indian Railway
EPR	Eastern Punjab Railway
ER	Eastern Railway
GBSR	Gaekwar's Baroda State Railway
GIPR	Great Indian Peninsular Railway
GLR	Gwalior Light Railway (later Scindia State Railway)
GSR	Gondal State Railway
GSIR	Great Southern of India Railway
IGR	Indian Government Railways
IMR	Indian Midland Railway
IR	Indian Railways
ISR	Indian State Railway
IVSR	Indus Valley State Railway
JDR	Jamnagar and Dwarka Railway
JR	Jodhpur Railway
JSR	Jaipur State Railway
KHR	Khanai-Hindubagh Railway
KKTR	Kushalgarh-Kohat-Thal Railway
KR	Konkan Railway
KSR	Kalka Simla Railway
KVR	Kangra Valley Railway
LJR	Larkana-Jacobabad Railway
MLR	Matheran Light Railway
MR	Madras Railway
MSMR	Madras and Southern Mahratta Railway
MSR	Mysore State Railway
NER	North-eastern Railway
NEFR, NFR	North-East Frontier Railway
NMR	Nilgiri Mountain Railway
NR	Northern Railway
NGSR	Nizam's Guaranteed State Railway
NSR	Nizam's State Railway
NWR	North Western Railway (in 1961, renamed Pakistan Western Rly.)
O&RR, ORR	Oudh and Rohilkhund Railway
OTR	Oudh and Tirhut Railway
PDB	Piplod Devgad Baria Railway
PLR	Parlakimedi Light Railway
PNSR	Punjab Northern State Railway
PR	Pakistan Railways
PSMT	Patiala State Monorail Trainways
RDR	Raipur Dhamtari Railway
RKR	Rohilkhund Kumaon Railway
RMR	Rajputana Malwa Railway
SCR	South-central Railway
SER	South-eastern Railway
SLR	Sri Lanka Railways
SIR	South Indian Railway
SMR	Southern Mahratta Railway
SPDR	Scinde, Punjab, and Delhi Railway
SR	Southern Railway
SSLR	Shahdara Saharanpur Light Railway
SSR	Scindia State Railway, also Sangli State Railway
TBLR	Tezpore-Balipara Light Railway
WCSR	Wardha Coal State Railway
WIPR	West of India Portuguese Railway
WR	Western Railway

 

Technical acronyms (loosely defined — see the miscellaneous section also.)
ABS	Automatic Block Signalling
ACD	Anti-Collision Device
ADAM	ARTS Data Manager (system for managing EPROMs and station configuration cartridges for ARTS)
AE	Automatic Emergency or Auto-Emergency (type of brake system)
AFTC	Audio Frequency Track Circuiting
ATC	Automated Train Control
ATP	Automatic Train Protection
ATS	Automatic Train Stop
AVB	Automatic Vacuum Brake
ATS	Automatic Train Stop
BPC	Brake Power Certificate (issued before train departure)
BS	Braking in Series configuration
BSL	Block Section Limit
BSP	Braking in Series-Parallel configuration
CDO	Coaching Depot
CLS	Colour-light signalling
COCR	Confirmatory Oscillograph Car Run
COFC	Container on flat car
CTC	Centralised Traffic Control
CTR	Complete Track Renewal
CWR	Continuous Welded Rail (0.5km and longer sections of welded rail)
DAC	Digital Axle Counter
DBFO	Design-Build-Finance-Operate (a scheme for private parties to build and run railway lines with IR's help)
DJ	From the French disjoncteur, the main circuit breaker of an electric loco (usually pneumatically operated, roof-mounted)
DLBI	Double Line Block Instrument
DEMU	Diesel-Electric Multiple Unit
DETC	Diesel-Electric Tower Car
DHMU	Diesel Hydraulic Multiple Unit (hydraulic transmission DMU)
DMH	Dead Man's Handle (on EMUs)
DMU	Diesel Multiple Unit
DPC	Driving Power Car
DS	Disconnecting Switch (to switch off OHE power to loco circuits, usually manual)
DSC	Dual-Stacked Container service (or Double-Stacked Container)
DTC	Driving Trailer Car (unpowered driving car in EMU rake)
DW	Double wire (of semaphore signals)
EA	Extra (time) Allowed (make-up time noted in working time-tables)
ELCM	Electronic Load Control Module (governor for DEMUs and other diesels).
EMU	Electric Multiple Unit
EOG	End-On Generator Car
ETCS	European Train Control System
EY	Empty (notation for empty rake in real-time train information systems)
FEDL	Fully Electrified Double Line
FM	Fouling Mark
FMVFT	Frequency-modulated Voice-frequency Telegraph (used for control communications by signals / electric traction / traffic control staff)
FOR	Forward motion (position of master controller in loco)
FP	Fouling Point; also Feed Pipe (at couplings of vehicles)
GTO	Gate Turn-Off thyristor
HEP	Head-end Power (power from the loco for the coaches)
HFTC	High-Frequency Track Circuit
HOBC	High-Output Ballast Cleaner
HOG	Head-On Generator
HHPDMU	High-Horsepower Diesel Electric Multiple Unit
HPDMU	High-powered Diesel Multiple Unit
HSCB	High-speed Circuit Breaker
HT	High Tension
HTCBC	High Tensile-strength Centre-Buffer Coupler
HTS	High Tensile-strength Steel
IGBT	Insulated Gate Bipolar Transistor
JRI	Junction Route Indicator
LOB	Lube Oil Balance
LTPDS	Live Train Position Display System
LVC	Last Vehicle Check (automated detection of rake integrity)
LWR	Long Welded Rail (5-15 rails welded together in a section)
MACL, MACLS	Multiple-Aspect Colour-Light signalling
MCB	Master Circuit Breaker (in locos)
MCI	Malleable Cast Iron
MEMU	Main-line Electric Multiple Unit
MLRI	Multi-Lamp Route Indicator
MNI	Modified Non-Interlocked (in working timetables)
MOG	Mid-On Generator Car
MOT	Motoring (position of master controller in loco)
NBT	Neale's Ball Token
NI	Non-Interlocked (in working timetables)
NTES	National Train Enquiry System
NX	eNtrance-eXit (interlocking panels)
OCV	Other Coaching Vehicle - non-passenger coaches, e.g., pantry cars.
OFC	Optical Fibre Cable
OHE	Overhead Equipment (or foreman for same)
OMS	Oscillation Monitoring System
PCS	Pneumatic Control System (loco shut-off/idling control which takes effect on application of emergency brakes)
PCV	Passenger Carrying Vehicle (regular passenger coaches, as distinct from OCV - restaurant cars, mail cars, etc.)
PI	Panel Interlocking
POET	Passenger Operated Enquiry Terminal
RCC	Remote Control Centre (for electric traction) Also, Reinforced Cement Concrete (Also see below in Miscellaneous)
REV	Reverse motion (position of master controller in loco), Reverser
ROSHAN	Rolling Stock Health Analyst (accelerometers and other equipment that monitor coach movement and report deviations from normal behaviour).
RPC	Resistance Power Control (or Compartment) (in EMU power cars)
SCADA	Supervisory Control and Data Acquisition (monitoring and control system for remote control of electric traction systems)
SE	Superelevation (of curved track)
S/L	Shunting Limit
SLBI	Single Line Block Instrument
SOD	Schedule of Dimensions
SPAD	Signal Passed At Danger
SPTM	Self-Printing Ticket Machine
SSDAC	Solid State Digital Axle Counter
SSI	Solid State Interlocking
STR	Schedule of Technical Requirements
STRI	Stencil type Route Indicator
SW	Single wire (of semaphore signals)
SWR	Short Welded Rail (2-4 rails welded together in a section) Also: Station Working Rules
TAB	Train Air Brake
TALQ	Two-Aspect Lower Quadrant
TAWD	Train Actuated Warning Device
TBTR	Through Bridge Timber Renewal
TFR	Through Fitting Renewal
TLC	Traction Locomotive Controller
TM	Traction Motor
TMS	Train Management System (train monitoring used in Bombay suburban sections)
TOFC	Trailer on flat car
T/out	Turnout
TPC	Traction Power Controller
TRC	Track Recording Car
TRO	Traction Rolling-stock Operations
TRR	Through Rail Renewal
TRT	Traffic Recovery Time (a kind of make-up time allotment in working timetable)
TSS	Traction Sub-Station
TSR	Through Sleeper Renewal
TTR	Through Turnout Renewal
TWR	Through Weld Renewal
UPF	Unity Power Factor
USFD	Ultrasonic Flaw Detection
VCC	Vacuum Continuity Certificate (issued before train departure)
VCB	Vacuum Circuit Breaker
VRP	Voltage Regulating Panel
WF	Weak Field
WILD	Wheel Impact Load Detector
WSR	Wheel Slip Relay

Source - IFRCA.org

ABBREVIATIONS

Abbreviations 

1. AAWS : Advance Approach Warning System. 

 

2. ARME : Accident Relief Medical Equipment(Van). 

 

3. AWS : Auxiliary Warning System. 

 

4. ACD : Anti Collision Device 

 

5. BPAC : Block Proving by Axle Counter. 

 

6. BPC : Brake Power Certificate.

 

7. CBC : Central Buffer Coupler. 

 

8. CCRS : Chief Commissioner of Railway Safety. 

 

9. CFTM : Chief Freight Transportation Manager. 

 

10. CLW : Chittaranjan Locomotives Works, 

 

11. COA : Control Office Application. 

 

12. CMPE : Chief Motive Power Engineer. 

 

13. COIS : Coaching Operation Information System. 

 

14. COM : Chief Operation Manager. 

 

15. CPRO : Chief Public Relation Officer. 

 

16. CPTM : Chief Passenger Transportation Manager. 

 

17. CRB : Chairman of Railway Board. 

 

18. CRS : Commissioner of Railway Safety. 

 

19. CRT : Container Rail Terminal. 

 

20. CSO : Chief Safety Officer. 

 

21. CTM (P) : Chief Transportation Manager (Petroleum) 

 

22. CTPM : Chief Transportation Planning Manager. 

 

23. CTWM : Chief Tank Wagon Manager. 

 

24. CMS : Crew Management System 

 

25. DEMU : Diesel Electrical Multiple Unit. 

 

26. DFCCIL : Dedicated Freight Corridor Corporation of India Limited. 

 

27. DAR : Discipline and Appeal Rules. 

 

28. DEMU : Diesel Electrical Multiple Unit. 

 

29. DLW : Diesel Locomotive Works, Varanasi. 

 

30. DMRC : Delhi Metro Rail Corporation. 

 

31. DPC : Departmental Promotional Committee. 

 

32. DSC : Double Stack Container.

 

33. DWSO : Divisional Work Study Officer. 

 

34. EOTT : End of Train Telemetry. 

 

35. FA & CAO: Finance Adviser & Chief Accounts Officer. 

 

36. FOIS : Freight Operation Information System. 

 

37. RMS : Rake Management System 

 

38. TMS : Terminal Management System 

 

39. HOER : Hours of Employment Regulation. 

 

40. ICMS : Integrated Coach Management System. 

 

41. IRCTC : Indian Railway Catering and Tourism Corporation ltd. 

 

42. ISMD : Infringing Standard Moving Dimensions. 

 

43. IVRS : Interactive Voice Response System. 

 

44. ITES : Integrated Telephone Enquiry System.

 

45. LVCD : Last Vehicle Checked Device.

46. MAUQ : Multi-Aspect Upper Quadrant. 

 

47. MEMU : Mainline Electrical Multiple Unit. 

 

48. MSD : Minimum Sighting Distance. 

 

49. NDMA : National Disaster Management Association. 

 

50. ODC : Over Dimensional Consignment. 

 

51. PAM : Punctuality Analysis Monitoring. 

 

52. PEASD : Passenger Emergency Alarm Signal Device. 

 

53. POMKA : Portable Medical Kit for Accident. 

 

54. RLDA : Railway Land Development Authority. 

 

55. RMS : Rake Management System. 

 

56. ROSHAN : Rolling Stock Health Analyst. 

 

57. SDGM : Senior Deputy General Manager. 

 

58. SGE : Siemens and General Electrical Railway Signal Company Ltd. 

 

59. SMARTS : Singular Modular Advance Railway Ticketing System. 

 

60. SPAD : Signal Passed AT Danger. 

 

61. SPARME : Self Propelled Accident Relief Medical Equipment. 

 

62. SPART : Self-Propelled Accident Relief Trains. 

 

63. SPURT : Self Propelled Ultrasonic Rail Testing Car. 

 

64. SSD : Speed Sensing Device. 

 

65. SSDAC : Solid State Digital Axle Counter. 

 

66. SWR : Station Working Rule. 

 

67. SWRD : Station Working Rule Diagram. 

 

68. TALQ : Two-Aspect Lower Quadrant. 

 

69. TAWD : Train Actuated Warning Device. 

 

70. WILD : Wheel Impact Load Detector