Podcast
Questions and Answers
What is one of the main parts of the locomotive assembly?
What is one of the main parts of the locomotive assembly?
- Bogie (correct)
- Chassis
- Wheel assembly
- Coupler
Which equipment is primarily found on the roof of the locomotive?
Which equipment is primarily found on the roof of the locomotive?
- Driver's seat
- Main traction transformer
- Pantograph for current collection (correct)
- Air reservoirs
Where is the machine room located in relation to the driver's cab?
Where is the machine room located in relation to the driver's cab?
- Between both driver's cabs (correct)
- Above the driver's cab
- Behind the driver's cab
- In front of the driver's cab
What type of switch is included among the roof-mounted equipment?
What type of switch is included among the roof-mounted equipment?
What equipment is specifically mounted in the underframe of the locomotive?
What equipment is specifically mounted in the underframe of the locomotive?
Which of the following is NOT mounted on the roof of the locomotive?
Which of the following is NOT mounted on the roof of the locomotive?
Which component is not typically found in the machine room?
Which component is not typically found in the machine room?
What ensures cooling in the machine room?
What ensures cooling in the machine room?
What is the purpose of the surge arrester mounted on the roof?
What is the purpose of the surge arrester mounted on the roof?
Which part of the locomotive would you find the driver's controls?
Which part of the locomotive would you find the driver's controls?
What is the starting tractive effort provided for the locomotive?
What is the starting tractive effort provided for the locomotive?
What is the maximum regenerative braking effort of the locomotive?
What is the maximum regenerative braking effort of the locomotive?
What is the continuous rated power at the wheel rim in the speed range of 80-160 km/h?
What is the continuous rated power at the wheel rim in the speed range of 80-160 km/h?
What is the axle arrangement of the locomotive?
What is the axle arrangement of the locomotive?
What is the continuous rated speed of the locomotive?
What is the continuous rated speed of the locomotive?
What is the total weight of the locomotive, including potential additions?
What is the total weight of the locomotive, including potential additions?
What is the gear ratio specified for the locomotive?
What is the gear ratio specified for the locomotive?
What is the unsprung mass limit per axle of the locomotive?
What is the unsprung mass limit per axle of the locomotive?
What is the wheel diameter of a newly manufactured wheel for the locomotive?
What is the wheel diameter of a newly manufactured wheel for the locomotive?
What is the maximum service speed of the locomotive?
What is the maximum service speed of the locomotive?
What type of drive does the WAG9 locomotive utilize?
What type of drive does the WAG9 locomotive utilize?
What is the starting tractive effort of the WAG9 locomotive?
What is the starting tractive effort of the WAG9 locomotive?
Which component is included for coach converters in the WAG9 locomotive's design?
Which component is included for coach converters in the WAG9 locomotive's design?
What power output is the WAG9 locomotive rated at the wheel rim in the 80-160 km/h speed range?
What power output is the WAG9 locomotive rated at the wheel rim in the 80-160 km/h speed range?
What type of axle arrangement does the WAG9 locomotive have?
What type of axle arrangement does the WAG9 locomotive have?
Which braking system is NOT part of the WAG9 locomotive's design?
Which braking system is NOT part of the WAG9 locomotive's design?
What component in the WAG9 locomotive uses a GTO thyristor?
What component in the WAG9 locomotive uses a GTO thyristor?
How can the service speed potential of the WAG9 locomotive be increased?
How can the service speed potential of the WAG9 locomotive be increased?
What is the nominal control circuit voltage of the system?
What is the nominal control circuit voltage of the system?
What is the unsprung mass per axle?
What is the unsprung mass per axle?
What is the gear ratio of the system?
What is the gear ratio of the system?
What is the total weight of the locomotive?
What is the total weight of the locomotive?
What is the nominal diameter of a new wheel?
What is the nominal diameter of a new wheel?
What is the length of the loco over the buffers?
What is the length of the loco over the buffers?
What is the height of the center of gravity from the rail level?
What is the height of the center of gravity from the rail level?
What provision is mentioned for increasing the loco weight in the future?
What provision is mentioned for increasing the loco weight in the future?
What is the overall width of the locomotive?
What is the overall width of the locomotive?
What is the bogie wheel base measurement provided?
What is the bogie wheel base measurement provided?
Which of the following components is located in the machine room of the locomotive?
Which of the following components is located in the machine room of the locomotive?
What is the primary function of the surge arrester found on the roof equipment?
What is the primary function of the surge arrester found on the roof equipment?
Which of the following is a characteristic of the layout in the driver's cab?
Which of the following is a characteristic of the layout in the driver's cab?
In which section of the locomotive is the internal air filter panel located?
In which section of the locomotive is the internal air filter panel located?
What is the nominal voltage of the control circuit for the locomotive?
What is the nominal voltage of the control circuit for the locomotive?
Which of the following is an arrangement that describes components mounted in the underframe?
Which of the following is an arrangement that describes components mounted in the underframe?
What is the unsprung mass per axle specified for the locomotive?
What is the unsprung mass per axle specified for the locomotive?
What type of layout characterizes the equipment fitted in the machine room?
What type of layout characterizes the equipment fitted in the machine room?
Which dimension represents the bogie wheel base of the locomotive?
Which dimension represents the bogie wheel base of the locomotive?
Which item is typically included in the roof equipment layout?
Which item is typically included in the roof equipment layout?
What is the maximum potential weight for the locomotive after ballasting?
What is the maximum potential weight for the locomotive after ballasting?
What is found in the underframe of the locomotive aside from the main compressor?
What is found in the underframe of the locomotive aside from the main compressor?
The main components of the locomotive assembly are divided into how many parts?
The main components of the locomotive assembly are divided into how many parts?
What is the specified gear ratio of the locomotive?
What is the specified gear ratio of the locomotive?
Which of the following is NOT part of the layout structure in the machine room?
Which of the following is NOT part of the layout structure in the machine room?
Which measurement indicates the length of the locomotive over buffers?
Which measurement indicates the length of the locomotive over buffers?
What is the specified height of the center of gravity from the rail level?
What is the specified height of the center of gravity from the rail level?
Which feature is mentioned as a future provision for the locomotive design?
Which feature is mentioned as a future provision for the locomotive design?
What is the length of the loco over head stock?
What is the length of the loco over head stock?
What is the continuous rated tractive effort in the speed range of 0-50 km/h?
What is the continuous rated tractive effort in the speed range of 0-50 km/h?
Which brake system is specifically included for operations in this locomotive?
Which brake system is specifically included for operations in this locomotive?
What is the gear ratio of the locomotive?
What is the gear ratio of the locomotive?
What is the diameter of a half worn wheel?
What is the diameter of a half worn wheel?
What is the nominal control circuit voltage of the locomotive's system?
What is the nominal control circuit voltage of the locomotive's system?
What is the axle load of the locomotive?
What is the axle load of the locomotive?
What is the maximum service speed that the WAG9 locomotive can achieve?
What is the maximum service speed that the WAG9 locomotive can achieve?
Which type of traction motor mounting is used in the WAG9 locomotive?
Which type of traction motor mounting is used in the WAG9 locomotive?
What feature allows for the potential increase in service speed for the WAG9 locomotive?
What feature allows for the potential increase in service speed for the WAG9 locomotive?
What is the continuous rated tractive effort of the WAG9 locomotive in the speed range of 0-50 km/h?
What is the continuous rated tractive effort of the WAG9 locomotive in the speed range of 0-50 km/h?
What is the maximum regenerative braking effort for the WAG9 locomotive within the speed range of 10-62 km/h?
What is the maximum regenerative braking effort for the WAG9 locomotive within the speed range of 10-62 km/h?
What kind of control system is utilized in the WAG9 locomotive?
What kind of control system is utilized in the WAG9 locomotive?
What type of brake system is included for the locomotive in the WAG9 design?
What type of brake system is included for the locomotive in the WAG9 design?
What is the continuous rated power at the wheel rim for the WAG9 locomotive in the speed range of 80-160 km/h?
What is the continuous rated power at the wheel rim for the WAG9 locomotive in the speed range of 80-160 km/h?
What axle arrangement does the WAG9 locomotive utilize?
What axle arrangement does the WAG9 locomotive utilize?
What is the guaranteed performance voltage of the WAG9 locomotive?
What is the guaranteed performance voltage of the WAG9 locomotive?
What is the nominal control circuit voltage for this locomotive?
What is the nominal control circuit voltage for this locomotive?
What is the total weight of the locomotive as specified?
What is the total weight of the locomotive as specified?
What is the diameter of a new wheel on the locomotive?
What is the diameter of a new wheel on the locomotive?
What is the unsprung mass per axle of this locomotive?
What is the unsprung mass per axle of this locomotive?
What is the length of the locomotive over the buffers?
What is the length of the locomotive over the buffers?
What is the provision made for increasing the locomotive weight in the future?
What is the provision made for increasing the locomotive weight in the future?
Which braking system is included in the WAG9 locomotive's design?
Which braking system is included in the WAG9 locomotive's design?
What feature is provided to support multiple locomotives operating together?
What feature is provided to support multiple locomotives operating together?
What is the nominal voltage for the traction power used by the WAG9 locomotive?
What is the nominal voltage for the traction power used by the WAG9 locomotive?
Which equipment is primarily located in the machine room?
Which equipment is primarily located in the machine room?
Where are the main traction transformers mounted in the locomotive?
Where are the main traction transformers mounted in the locomotive?
Which component is NOT typically found in the driver's cab?
Which component is NOT typically found in the driver's cab?
What type of equipment is NOT mounted on the roof?
What type of equipment is NOT mounted on the roof?
What is located symmetrically on both sides of the central corridor in the machine room?
What is located symmetrically on both sides of the central corridor in the machine room?
Which of the following components is included in the underframe layout?
Which of the following components is included in the underframe layout?
What is the function of the internal air filter panel installed on the roof?
What is the function of the internal air filter panel installed on the roof?
Which of these components provides current collection in the locomotive?
Which of these components provides current collection in the locomotive?
What type of layout is characteristic of the equipment in the machine room?
What type of layout is characteristic of the equipment in the machine room?
What is the total weight of the locomotive including additional components?
What is the total weight of the locomotive including additional components?
What is the radius of the new wheel diameter for the locomotive?
What is the radius of the new wheel diameter for the locomotive?
What type of brake system does the locomotive feature?
What type of brake system does the locomotive feature?
What is the mounting arrangement for the traction motor?
What is the mounting arrangement for the traction motor?
Flashcards
Locomotive modular construction
Locomotive modular construction
The locomotive is built in sections, or modules.
Key locomotive parts
Key locomotive parts
Roof, driver's cab, machine room, bogie, and frame.
Roof equipment
Roof equipment
Items on the roof of the locomotive, primarily related to electrical systems.
Pantograph
Pantograph
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Machine room equipment
Machine room equipment
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Driver's cab equipment layout
Driver's cab equipment layout
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Underframe equipment
Underframe equipment
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Main traction transformer
Main traction transformer
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Primary side of transformer
Primary side of transformer
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Main compressor
Main compressor
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Starting Tractive Effort (22.5 kV)
Starting Tractive Effort (22.5 kV)
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Continuous Rated Tractive Effort (0-50 km/h)
Continuous Rated Tractive Effort (0-50 km/h)
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Continuous Rated Speed
Continuous Rated Speed
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Rated Power (80-160 km/h)
Rated Power (80-160 km/h)
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Regenerative Braking Effort (10-90 km/h)
Regenerative Braking Effort (10-90 km/h)
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Maximum Service Speed
Maximum Service Speed
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Axle Arrangement
Axle Arrangement
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Traction Motor Mounting
Traction Motor Mounting
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Total Weight
Total Weight
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Axle Load
Axle Load
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Starting Tractive Effort (kN)
Starting Tractive Effort (kN)
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Continuous Rated Tractive Effort (kN)
Continuous Rated Tractive Effort (kN)
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Continuous Rated Speed (km/h)
Continuous Rated Speed (km/h)
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Continuous Rated Power (kW)
Continuous Rated Power (kW)
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Maximum Regenerative Breaking Effort (kN)
Maximum Regenerative Breaking Effort (kN)
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Maximum Service Speed (km/h)
Maximum Service Speed (km/h)
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Brake System
Brake System
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Three-phase Drive
Three-phase Drive
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Control circuit voltage
Control circuit voltage
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Unsprung mass (per axle)
Unsprung mass (per axle)
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Wheel diameter (new)
Wheel diameter (new)
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Wheel diameter (half-worn)
Wheel diameter (half-worn)
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Wheel diameter (full-worn)
Wheel diameter (full-worn)
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Gear ratio
Gear ratio
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Length of loco (over buffers)
Length of loco (over buffers)
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Loco wheel base
Loco wheel base
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Locomotive Modules
Locomotive Modules
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Roof Equipment: What's on top?
Roof Equipment: What's on top?
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Pantograph Function
Pantograph Function
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Machine Room Contents
Machine Room Contents
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Traction Transformer
Traction Transformer
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Starting Tractive Effort
Starting Tractive Effort
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Regenerative Braking
Regenerative Braking
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Continuous Rated Tractive Effort
Continuous Rated Tractive Effort
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Continuous Rated Power
Continuous Rated Power
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Maximum Regenerative Breaking Effort
Maximum Regenerative Breaking Effort
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Multiple Unit Operation
Multiple Unit Operation
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Regenerative Braking Effort
Regenerative Braking Effort
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Unsprung Mass
Unsprung Mass
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Length (over Buffers)
Length (over Buffers)
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Modular Locomotive Construction
Modular Locomotive Construction
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Locomotive Main Parts
Locomotive Main Parts
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Roof Equipment Purpose
Roof Equipment Purpose
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Machine Room function
Machine Room function
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What is the starting tractive effort of WAG9 locomotive?
What is the starting tractive effort of WAG9 locomotive?
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What is the continuous rated tractive effort of WAG9 locomotive?
What is the continuous rated tractive effort of WAG9 locomotive?
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What is the maximum service speed of WAG9 locomotive?
What is the maximum service speed of WAG9 locomotive?
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Wheel Diameter
Wheel Diameter
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Three-phase technology
Three-phase technology
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Study Notes
Locomotive System Information
- The locomotive is modular, with five main components: roof, driver's cab, machine room, bogie, and frame.
- Roof equipment, such as pantograph for current collection, internal air filter, 25 KV bushing, surge arrester, earthing switch, vacuum circuit breaker, primary voltage transformer, and harmonic filter resistance box, are mounted on the primary side of the transformer.
Locomotive Layout
- Figure 2.1 shows the overall layout of the locomotive, including the roof, driver's cab, machine room, and bogies/frames.
- Figure 2.2 shows a detailed layout of the roof equipment.
- Figure 2.3 provides a detailed layout of the machine room components.
- Figure 2.4 shows an overview of the driver's cab, including controls and indicators.
Underframe Equipment
- Compressors, air dryers, air reservoirs, and batteries are mounted in the underframe of the locomotive.
- Figure 2.5 displays the underframe layout.
Locomotive Performance Specifications
- Starting Tractive Effort: 258 kN
- Continuous Rated Tractive Effort (0–50 km/h): 220 kN
- Continuous Rated Speed: 50 km/h
- Continuous Rated Power (80–160 km/h): 4000 kW
- Maximum Regenerative Braking Effort (10–90 km/h): 160 kN
- Maximum Service Speed: 160 km/h
- Total weight: 78.0± 1% tones plus max. 800 kg including harmonic filter and side buffers
- Axle load: 19.5± 2% tones
- Wheel Diameter: (New, half-worn, full-worn) 1092, 1054, 1016 mm
- Gear Ratio: 3.941 (67:35:17)
- Length of Locomotive over buffers: 18162 mm
- Length of Locomotive over headstock: 16880 mm
- Other dimensions including axle arrangements, brake types, and control circuits voltage are also provided.
Other Features
- The locomotive uses a 3-phase drive with GTO thyristors and MICAS-S2 microprocessor-based control system.
- Future upgrades may include increasing service speed to 200 km/h by adjusting the gear ratio and additional hotel load winding.
- The locomotive design accommodates multiple-unit operation
Tractive and Braking Curves
- Figures 2.6 and 4.7 display tractive effort and braking effort versus speed curves for the WAP5 locomotive. These provide visual representations of the locomotive's performance capabilities, useful for design and operation analysis.
- Corresponding data for WAG9 locomotives are included as well, showing similar curves for tractive and braking effort at various speeds.
Haulage Capacity Table
- Several tables (Figure 2.8, and similar) present haulage capacity data for different locomotive types (passenger trains, express trains, and others) at various speeds and service grades. These data illustrate the maximum load capacity the locomotive can handle at different operating conditions.
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