13 wdp4d dual cab.ppt

DUAL CAB LOCOMOTIVE --WDP4DA PRESENTATION ON *A. PRASADU/DDI/ELEC/DTTC/GTL

A. PRASADU/DDI/ELEC/DTTC/GTL

In the existing WDP4/WDG4 locomotive; only one Driver cabin is there with 2 control consoles. The No.1 control console (right side) faces forward. The No. 2 control console (left side) faces rearward. *Control console-2Control console-1A. PRASADU/DDI/ELEC/DTTC/GTL


Majority of the Driver operated locomotive controls are located in control console only. *Control console-1Control console-2DRIVER CABINA. PRASADU/DDI/ELEC/DTTC/GTL


DUAL CAB: Dual CAB locomotive has two driver cabins with one control console of each cabin.

The Dual cab Locomotive control is based on BL Key concept of Electric Locomotives. Each CAB will have a BL Key. Existing CAB (SH side) is named as CAB#1 and new CAB (LH side) is named as CAB#2. In which cab BL key is inserted and turned to 'ON', is called Active CAB other one Inactive cab. We can operate locomotive from Active CAB only. *A. PRASADU/DDI/ELEC/DTTC/GTL


Electrical control cabinet ECC#1(minor modifications)Electrical control cabinet ECC#2Electrical control cabinet ECC#3Electrical control cabinet ECC#4 (new)Traction control cabinet TCCControl Console for CAB1 (new)Control Console for CAB2 (new)Crow bar AssemblyBrake chopper AssemblyHarness for Dual cab loco *A. PRASADU/DDI/ELEC/DTTC/GTL


Electrical control cabinet #1:The electrical control cabinet #1 ,houses some of the electrical and electronic equipment needed to power and control the locomotive. Same as WDP4/WDG4 locomotive but following changes are implemented for Dual CAB purpose.

VFD Display removed: in place of that 2 TFT displays provided in each control console.BL key switch added: BL key logic implemented as same as Electric loco *A. PRASADU/DDI/ELEC/DTTC/GTL


Electrical Control Cabinet #2:ECC#2 contains starting motor circuit and Battery charging circuit. Same as WDP4/WDG4 locomotive ,there is no changes in ECC#2 for Dual CAB purpose.

Electrical Control Cabinet #3:ECC#3 contains 2 Radiator fan control circuits . Same as WDP4/WDG4 locomotive.

Traction Control Cabinet: TCC contains electrical and electronic equipment needed to power and control the traction motors. Same as WDP4/WDG4 locomotive ,there is no changes in TCC for Dual Cab purpose. *A. PRASADU/DDI/ELEC/DTTC/GTL


Electrical Control Cabinet # 4:CAB#2 will have a Miniature ECC#1 panel named as ECC#4.Sub Assemblies of ECC#4Isolation SwitchEFCO SwitchClassification Light SwitchMemory Freeze SwitchAlerter AlarmTELM SwitchRAPB SwitchFuel Prime/Engine Start SwitchBL KeyComputer Control CBMicro Air Brake CBCAB Fans and Lights CBGenerator Field CBGRNTCO SW *A. PRASADU/DDI/ELEC/DTTC/GTL


*A. PRASADU/DDI/ELEC/DTTC/GTL


*Default screen A. PRASADU/DDI/ELEC/DTTC/GTL


*Main Menu screen A. PRASADU/DDI/ELEC/DTTC/GTL


*Crew Messages screen A. PRASADU/DDI/ELEC/DTTC/GTL


*Data Meters screen A. PRASADU/DDI/ELEC/DTTC/GTL


*TM 1, 2 Parameters screen A. PRASADU/DDI/ELEC/DTTC/GTL


*Fault Archive screen A. PRASADU/DDI/ELEC/DTTC/GTL


All necessary switches and breakers are duplicated on ECC#4 of CAB -2 also.4 TFT displays are provided in both cabs, We can see all parameters in displays of both CABs simultaneously Recycling feature of LCC and CCB is given in both CABs.Isolation feature is given in both the CABs.EFCO switch provided in both the CABs to shutdown the engine from any CAB.Rectified drivers visibility problem in rear side driving.Some necessary switches are duplicated for Asst Driver also.TE/BE meter, Speed Meter and Lights (Sand, PCS Open, Flasher, Wheel Slip, Brake Warn, TE Limit etc.) were shifted from control console to TFT display. *A. PRASADU/DDI/ELEC/DTTC/GTL


BL Key interlock 1. TE Limit 2. RAPB 3. GF Request Switch 4. Alerter Reset 5. HornHead Light Circuit Breaker is provided in CAB#1 only.There is no separate circuit breaker for fans in the CAB#2 only one circuit breaker named Lights & Fans circuit breaker which provides supply for both lights & fans in CAB#2.



Appropriate crew messages were provided to guide the driver like... 1. BL Key removed in both the CABs 2. CAB#1 is active. 3. Generator Field Circuit Breaker Should be closed in CAB#1 4. Generator Field Circuit Breaker Should be closed in CAB#2 5. Micro Air Brake Circuit Breaker is OFF in CAB#1 6. Micro Air Brake Circuit Breaker is OFF in CAB#2



S. NO.SWITCH / CIRCUIT BREAKER NAMELOCATIONSETTING TO MAKE CAB#1 ASDRIVING / ACTIVE CABNON DRIVING / INACTIVE CAB1ENG RUN SWCONTROL STAND#1ONOFF2CONT & FP SWCONTROL STAND#1ONOFF3GEN FLD SWCONTROL STAND#1ONOFF4DY. BRAKE CBCONTROL STAND#1ONOFF5LEAD / TRL SWCONTROL STAND#1LEADTRL6ISOLATION SWECC#1RUNRUN7COMP. CONT. CBECC#1ONON8MICRO AIR BRAKE CBECC#1ONON9GEN FLD CBECC#1ONOFF10BL KEYECC#1ONOFF11CLASS LT SWECC#1ONOFF12CAB FANS&LT SWECC#4ON/OFFOFF13HDLT CBECC#1ONON14LIGHTS CBECC#1ONON

Comparison between WDG4 and WDP4D *A. PRASADU/DDI/ELEC/DTTC/GTL

Sl. No.DESCRIPTIONWDG4WDP4DREMARKS1Drivers cabSingle cabDual Cab[ CAB#1(short hood),CAB#2(Long Hood)]To overcome visibility problem2Electrical Control compartments (ECC)03 nos- (ECC#1, ECC#2, ECC#3)04 nos (ECC#1, ECC#2, ECC3#)+ ECC#4 provided in CAB#2)ECC#4 provided in CAB#2 for loco operation3Display UnitOne display unit in the drivers cab2 nos per cab, one for the pilot and the other for the assistant TFT display used in place of VFD display in WDG4 loco4TE/BE MetersProvided on drivers consoleIncluded in Drivers Display5Fault Indication PanelProvided in drivers consoleIncluded in Drivers Display6Button Lever Key (BL Key) Not provided since single drivers cabProvided in both driver's cabs to set active/working cab Only one Cab can be made active at a time by inserting KEY and should be kept ON7Pinion to bull gear ratio17:9017:778Cab Air conditionNot providedOne each provided in both the cabsOnly one unit can be made ON at a time



S.No.DESCRIPTIONWDG4WDP4DREMARKS9Lead/Trail switchOne in each drivers consoleOne each in drivers cabOnly active drivers cab should be in Lead at a time10Computer control CBOne no. only2 nos connected in series.One each in each drivers cabBoth computer control CBs should be on for Normal working. Recycling can be done from any of the Cabs11Micro Air Brake CB(MAB)One no. only2 nos connected in series.One each in each drivers cabBoth MAB CBs should be on for Normal working. Recycling can be done from any of the Cabs12Fuel prime/Start switch FP/ESOne no. only2 nos, one each in each drivers cab and connected in parallelEngine can be cranked from any of the drivers cab13Emergency Fuel Cut off switch EFCOOne no. only2 nos, one each in each drivers cabEngine can be shutdown from any of the drivers cab14Isolation/Run switchOne no. only2 nos One no. in each drivers cabBoth the switches should be kept in RUN position for Normal working of loco



S.No.DESCRIPTIONWDG4WDP4DREMARKS15Gen field CBOnly one no. 2 nos- one no. in each drivers cab and both connected in parellelIt should be ON in active drivers cab and OFF in the other cab16Cab fans and Lights CBSeparate breaker for cab fans and separate breakers for lightingSingle breaker for both cab fans and lights. One each in each of the drivers cab. These breakers are connected in parellelCab fans and lights can be operated from individual cabs17GRNTCO (Ground Relay cut out switch)One switch onlyTwo switches, one in each drivers cab and are connected in seriesBoth switches should be cut-in for normal working18TELM (Tractive Effort Limit switch)One switch onlyTwo switches, one in each drivers cab and are connected in parellelBoth switches should be OFF for normal working19RAPB/AEB switchOne switch only (single speed setting/4 speed setting)Two switches, one in each drivers cab and are connected in parellelBoth switches should be OFF for normal working20HEAD LIGHTS CBOne onlyOne only in short hood drivers cabThis should be ON for operation of Head lights in any of the drivers cab


Comparison between WDG4 and WDP4D*A. PRASADU/DDI/ELEC/DTTC/GTL

DESCRIPTIONWDG4WDP4DREMARKS21Dynamic Brake CBOnly one nos 2 nos- one in each drivers cab and both connected in parellelBoth circuit breakers should be ON for normal working22Engine Run SwitchOne nos only2 nos- one in each drivers cab and both connected in parellelThis switch should be ON in Active and OFF in non-active cab23Gen Fld SwitchOne switch only2 nos- one in each drivers cab and both connected in parellelThis switch should be ON in Active and OFF in non-active cab24Horn push button4 nos two per each drivers console4 nos Two per each drivers cabThis push buttons work only in active drivers cab25Flasher lights switches4 nos two per each drivers console4 nos two per each drivers cabFrom any cab flasher lights can be made ON26MU Eng Stop switchOne only2 nos- one in each drivers cab and both connected in parellel cabFrom any of the drivers cab this switch can be operated.


Loco length is increased by 2.5 m (for long hood drivers cab)2.5 meters *A. PRASADU/DDI/ELEC/DTTC/GTL


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13 wdp4d dual cab.ppt

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