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The main components of a DC motor include commutator, brushes, and ______.
The main components of a DC motor include commutator, brushes, and ______.
bearing
One disadvantage of the DC traction motor is that it is ______ in size.
One disadvantage of the DC traction motor is that it is ______ in size.
bulky
The AC traction motor provides a power regeneration facility which is not available in ______ motor fitted locomotives.
The AC traction motor provides a power regeneration facility which is not available in ______ motor fitted locomotives.
DC
The most advanced power device in power electronics among IGBT, GTO, SCR, and ______ is IGBT.
The most advanced power device in power electronics among IGBT, GTO, SCR, and ______ is IGBT.
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The first Indian company to develop IGBT-based propulsion equipment is ______.
The first Indian company to develop IGBT-based propulsion equipment is ______.
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The total power rating of the transformer is ______ kV.
The total power rating of the transformer is ______ kV.
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The primary winding in the transformer is accompanied by ______ secondary windings.
The primary winding in the transformer is accompanied by ______ secondary windings.
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The IGBT based 3-phase drive propulsion equipment aims for indigenous ______ for Electric loco's.
The IGBT based 3-phase drive propulsion equipment aims for indigenous ______ for Electric loco's.
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The Vehicle Control Units (VCU1 & VCU2) are located under SB1 & ______ cubicles.
The Vehicle Control Units (VCU1 & VCU2) are located under SB1 & ______ cubicles.
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Each digital output module from the MDOPCAN card has provision for ______ channels.
Each digital output module from the MDOPCAN card has provision for ______ channels.
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The master VCU controls the complete system operation based on signals measured and commands from the ______.
The master VCU controls the complete system operation based on signals measured and commands from the ______.
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The auxiliary winding of the transformer has a power rating of ______ kVA.
The auxiliary winding of the transformer has a power rating of ______ kVA.
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The MDIPCAN card reads digital input channels and transmits information to ______ on the Main CAN communication channel.
The MDIPCAN card reads digital input channels and transmits information to ______ on the Main CAN communication channel.
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It is the central processing unit of the entire ______ system
It is the central processing unit of the entire ______ system
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This module works on ±15 V and ±______ V DC input voltages
This module works on ±15 V and ±______ V DC input voltages
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If VCU1 Main CPU fails, the locomotive control operation changes over to ______ Main CPU
If VCU1 Main CPU fails, the locomotive control operation changes over to ______ Main CPU
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Each VCU is integrated with the control stand (cab) that is closest in terms of physical ______
Each VCU is integrated with the control stand (cab) that is closest in terms of physical ______
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VCU interface with E-70/CCB Brake system through Digital and ______ I/Os
VCU interface with E-70/CCB Brake system through Digital and ______ I/Os
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Integration with control stand includes interface with Master ______, TE/BE Throttle handle
Integration with control stand includes interface with Master ______, TE/BE Throttle handle
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VCUs in turn share control stand information with each other for ______
VCUs in turn share control stand information with each other for ______
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When loco runs in the regeneration mode, and if regeneration is failed, VCU commands brake system to apply equivalent ______ brake through analog output.
When loco runs in the regeneration mode, and if regeneration is failed, VCU commands brake system to apply equivalent ______ brake through analog output.
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The ______ ensures communication through redundant CAN interfaces by utilizing separate processors of each VCU.
The ______ ensures communication through redundant CAN interfaces by utilizing separate processors of each VCU.
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Motoring and braking torque command is based on the position of the ______.
Motoring and braking torque command is based on the position of the ______.
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Traction converter faults and status feedback are communicated back to the ______.
Traction converter faults and status feedback are communicated back to the ______.
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When an auxiliary converter fails, the change-over is controlled by the ______.
When an auxiliary converter fails, the change-over is controlled by the ______.
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Redundant options are available when the Main Control Computer (MVCUCC1) in VCU1 ______.
Redundant options are available when the Main Control Computer (MVCUCC1) in VCU1 ______.
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The LCD TFT Based Driver Display communicates with the VCU system through an ______ link.
The LCD TFT Based Driver Display communicates with the VCU system through an ______ link.
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The driver display shows data sent by the VCU system in both ______ and graphical formats.
The driver display shows data sent by the VCU system in both ______ and graphical formats.
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Fault data packs from traction converters are downloaded through the ______.
Fault data packs from traction converters are downloaded through the ______.
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The auxiliary converter consists of one Line Rectifier, DC Link and one ______.
The auxiliary converter consists of one Line Rectifier, DC Link and one ______.
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The battery charger can be driven by either of the AC2 or AC3 converters in the ______ cabinet.
The battery charger can be driven by either of the AC2 or AC3 converters in the ______ cabinet.
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The three phase output of the auxiliary converters is nominal ______ V.
The three phase output of the auxiliary converters is nominal ______ V.
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Thyristors are used as active switches in the ______ Rectifier.
Thyristors are used as active switches in the ______ Rectifier.
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The output voltage of the battery charger is ______ V.
The output voltage of the battery charger is ______ V.
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The Control Card communicates with power modules through ______.
The Control Card communicates with power modules through ______.
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Analog Inputs to the control card include temperature channel and ______ battery voltage.
Analog Inputs to the control card include temperature channel and ______ battery voltage.
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The Digital Inputs include feedback for contactors such as 52/3 and ______.
The Digital Inputs include feedback for contactors such as 52/3 and ______.
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The Power Supply Module in Aux. Converter supplies various DC-DC regulated power supplies required for all the modules inside the ______.
The Power Supply Module in Aux. Converter supplies various DC-DC regulated power supplies required for all the modules inside the ______.
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The Line Rectifier converts AC input from the Traction Transformer to ______ and stores it in DC link capacitors bank.
The Line Rectifier converts AC input from the Traction Transformer to ______ and stores it in DC link capacitors bank.
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The Inverter acts as an interface between the DC Link and the three phase output to the Auxiliary ______.
The Inverter acts as an interface between the DC Link and the three phase output to the Auxiliary ______.
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The Battery Charger Module converts the 415V AC from Aux. Converter into ______ DC.
The Battery Charger Module converts the 415V AC from Aux. Converter into ______ DC.
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The Battery Charger Module consists of a Three Phase ______ Rectifier.
The Battery Charger Module consists of a Three Phase ______ Rectifier.
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The protections in the Aux. Converter include fuse failure in the ______.
The protections in the Aux. Converter include fuse failure in the ______.
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The DC Link circuit consists of an LC ______ to filter the output.
The DC Link circuit consists of an LC ______ to filter the output.
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The temperature channel is associated with the ______ in the Battery Charger Module.
The temperature channel is associated with the ______ in the Battery Charger Module.
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Study Notes
Parts of a DC Motor
- Commutator
- Brushes
- Bearings
- Gears
Disadvantages of DC Traction Motors
- Commutator and brushes require more maintenance.
- Occupies a large space.
- No power regeneration capability.
- Requires a separate converter for regeneration.
Advantages of AC Traction Motors
- No commutator or brushes.
- Lower maintenance requirements.
- Smaller size and occupies less space.
- Power regeneration is possible.
AC Locomotive Technology
- CLW manufactures 3-phase electric locomotives using technology acquired from ABB/ADTRANZ.
- IGBT-based converters are used, based on GTO technology.
Power Devices
- IGBT is the most advanced power device in power electronics.
Indian Company
- MEDHA SERVO DRIVES(P) Ltd is the first Indian company to design and develop the IGBT based 3-phase drive propulsion equipment for WAG9/WAG9H/WAP7/WAP5 locomotives (MEC628V2).
Common IGBT-Based Locomotives
- WAG9
- WAG9H
- WAP7
- WAP5
WAG-9 Locomotive Motor
- Uses an AC motor.
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Description
This quiz explores the components, advantages, and disadvantages of DC and AC traction motors used in locomotives. Learn about the technology behind IGBT-based converters and the innovations by Indian companies in electric locomotive manufacturing.
