Podcast
Questions and Answers
Which component is essential for the operation of the traction control unit?
Which component is essential for the operation of the traction control unit?
- Battery volt meter
- AC-DC converter (correct)
- MCB
- Foot operated valve
What is the primary function of the brake electronics control unit (BECU)?
What is the primary function of the brake electronics control unit (BECU)?
- To manage the traction current
- To control the main switch
- To regulate the brake system (correct)
- To monitor the emergency brake
What does the 'Panto is Up' indication signify on the shunting desk control panel?
What does the 'Panto is Up' indication signify on the shunting desk control panel?
- The parking brake is engaged
- The power supply is offline
- The pantograph is correctly positioned (correct)
- The emergency brake is activated
Which of the following is NOT found in the electronic cabinet?
Which of the following is NOT found in the electronic cabinet?
Which function does the foot-operated valve provide?
Which function does the foot-operated valve provide?
What does the 'Main Switch On / Off' control allow the operator to do?
What does the 'Main Switch On / Off' control allow the operator to do?
Which device is responsible for converting alternating current to direct current in the HT compartment?
Which device is responsible for converting alternating current to direct current in the HT compartment?
What is the operating voltage of the secondary windings connected to the IGBT based modules?
What is the operating voltage of the secondary windings connected to the IGBT based modules?
Which braking system is utilized in the basic unit of the vehicle?
Which braking system is utilized in the basic unit of the vehicle?
What happens if the key valve on the rear panel of the shunting cab is closed?
What happens if the key valve on the rear panel of the shunting cab is closed?
What is the maximum start effort for the basic unit?
What is the maximum start effort for the basic unit?
Which supply is used to provide redundancy lines to adjacent units?
Which supply is used to provide redundancy lines to adjacent units?
What is the primary purpose of the Earth Fault Detector in the circuit of the 4-QC module?
What is the primary purpose of the Earth Fault Detector in the circuit of the 4-QC module?
How does the Line Filter function within the DC link capacitor?
How does the Line Filter function within the DC link capacitor?
What type of output does one secondary of the Auxiliary Converter provide for the main compressor?
What type of output does one secondary of the Auxiliary Converter provide for the main compressor?
What is the function of the Pantograph (Type Am-1882)?
What is the function of the Pantograph (Type Am-1882)?
What is the significance of the Surge Arrestor mounted on the motor coach?
What is the significance of the Surge Arrestor mounted on the motor coach?
For what purpose is the DC 110V output from the Auxiliary Converter primarily used?
For what purpose is the DC 110V output from the Auxiliary Converter primarily used?
Which statement correctly describes the function of the Line Voltage Transformer?
Which statement correctly describes the function of the Line Voltage Transformer?
What component is utilized to provide redundancy lines of supply in the motor coach?
What component is utilized to provide redundancy lines of supply in the motor coach?
Which type of output does the Auxiliary Converter provide that is specifically for powering lights and fans?
Which type of output does the Auxiliary Converter provide that is specifically for powering lights and fans?
What is the primary function of the line current transformer?
What is the primary function of the line current transformer?
What position does the change over switch default to?
What position does the change over switch default to?
Which device is designed to break the power circuit under overload conditions?
Which device is designed to break the power circuit under overload conditions?
How many traction motors are included in one motor coach?
How many traction motors are included in one motor coach?
What does the AC Earthing Switch connect to during the off position of the VCB?
What does the AC Earthing Switch connect to during the off position of the VCB?
Which of the following devices is specifically for DC operation?
Which of the following devices is specifically for DC operation?
What is the main purpose of surge arrestors on the motor coach?
What is the main purpose of surge arrestors on the motor coach?
What nominal rating is designed for the traction transformer?
What nominal rating is designed for the traction transformer?
Which part of the system does the DC Earthing Switch connect to during the off position of the HSCB?
Which part of the system does the DC Earthing Switch connect to during the off position of the HSCB?
How many positions does the change over switch have?
How many positions does the change over switch have?
What is the nominal current available on the secondary side at 855 Volt?
What is the nominal current available on the secondary side at 855 Volt?
Which of the following is NOT listed as under frame equipment in the non-driving trailer coach?
Which of the following is NOT listed as under frame equipment in the non-driving trailer coach?
What type of equipment is a transducer classified as?
What type of equipment is a transducer classified as?
What is the purpose of the potential transformer (PT) in the high tension power circuit?
What is the purpose of the potential transformer (PT) in the high tension power circuit?
Which sensor is used to monitor oil levels in the Siemens AC-DC EMU?
Which sensor is used to monitor oil levels in the Siemens AC-DC EMU?
Which of the following components would typically be found in the roof equipment of a trailer coach?
Which of the following components would typically be found in the roof equipment of a trailer coach?
What type of catenary voltage does the pantograph receive?
What type of catenary voltage does the pantograph receive?
What equipment in a non-driving trailer coach is used for parking brakes?
What equipment in a non-driving trailer coach is used for parking brakes?
Which rotary switch is associated with the passenger area of the non-driving trailer coach?
Which rotary switch is associated with the passenger area of the non-driving trailer coach?
What does the detection of AC or DC voltage in the power circuit utilize?
What does the detection of AC or DC voltage in the power circuit utilize?
What triggers the automatic application of brakes in rescue drive mode?
What triggers the automatic application of brakes in rescue drive mode?
How is the auxiliary equipment powered in the EMU system?
How is the auxiliary equipment powered in the EMU system?
Which coach type in the end basic unit does not support driving?
Which coach type in the end basic unit does not support driving?
What type of inverter voltage is supplied for the auxiliary air compressor?
What type of inverter voltage is supplied for the auxiliary air compressor?
Which component is primarily responsible for driving the EMU using driver commands?
Which component is primarily responsible for driving the EMU using driver commands?
What distinguishes the Non Driving Trailer Coach (NDTC) from the Driving Trailer Coach (DTC)?
What distinguishes the Non Driving Trailer Coach (NDTC) from the Driving Trailer Coach (DTC)?
What fixed frequency does the inverter for auxiliary equipment supply?
What fixed frequency does the inverter for auxiliary equipment supply?
What role does the Emergency OFF function serve in the auxiliary tell-tale lamps?
What role does the Emergency OFF function serve in the auxiliary tell-tale lamps?
What is the nominal current at the secondary side when the secondary voltage is 855 Volt?
What is the nominal current at the secondary side when the secondary voltage is 855 Volt?
Which gauge is essential in monitoring the performance of brake systems?
Which gauge is essential in monitoring the performance of brake systems?
In the Man Machine Interface, which function does the Cursor Right control perform?
In the Man Machine Interface, which function does the Cursor Right control perform?
Which of the following accurately describes a type of transducer used in Siemens AC-DC EMU?
Which of the following accurately describes a type of transducer used in Siemens AC-DC EMU?
What is the primary purpose of the Tail Light On / Off control in the guard panel?
What is the primary purpose of the Tail Light On / Off control in the guard panel?
Which component is part of the under frame equipment in a non-driving trailer coach?
Which component is part of the under frame equipment in a non-driving trailer coach?
What is sensed through the voltage sensing device for AC voltage detection?
What is sensed through the voltage sensing device for AC voltage detection?
Which function does the Cab emergency light provide to the driver?
Which function does the Cab emergency light provide to the driver?
Which of the following controls is directly associated with parking brake operations?
Which of the following controls is directly associated with parking brake operations?
Which of the following is NOT part of the roof equipment in a trailer coach?
Which of the following is NOT part of the roof equipment in a trailer coach?
What does the function of the train light at reduced intensity (50%) achieve?
What does the function of the train light at reduced intensity (50%) achieve?
What does the detection of DC voltage utilize according to the provided information?
What does the detection of DC voltage utilize according to the provided information?
Which component in the under frame equipment provides mechanical weight transfer?
Which component in the under frame equipment provides mechanical weight transfer?
What does the Cab spot light for the driver primarily provide?
What does the Cab spot light for the driver primarily provide?
What does the Legends of Symbols feature in the Man Machine Interface enable?
What does the Legends of Symbols feature in the Man Machine Interface enable?
What type of switch is associated with the passenger area in the trailer coach?
What type of switch is associated with the passenger area in the trailer coach?
Which sensor is specifically mentioned for monitoring oil flow in the Siemens AC-DC EMU?
Which sensor is specifically mentioned for monitoring oil flow in the Siemens AC-DC EMU?
What is the supply voltage received by the pantograph?
What is the supply voltage received by the pantograph?
What must be done before attempting to raise the pantograph?
What must be done before attempting to raise the pantograph?
What happens automatically when the pantograph is lowered with the valve closed?
What happens automatically when the pantograph is lowered with the valve closed?
In case of a fault, how can the pantograph be lowered?
In case of a fault, how can the pantograph be lowered?
What does the rotary switch control in relation to the pantograph?
What does the rotary switch control in relation to the pantograph?
What action is taken if there is not a sufficient supply of compressed air to raise the pantograph?
What action is taken if there is not a sufficient supply of compressed air to raise the pantograph?
What is the purpose of the pre-charging AC contactor in the motor coach?
What is the purpose of the pre-charging AC contactor in the motor coach?
Which component is specifically used to limit the surge voltage in the motor coach?
Which component is specifically used to limit the surge voltage in the motor coach?
What is one function of the traction converter cubical?
What is one function of the traction converter cubical?
Which module is part of the traction converter cubical that manages the voltage output?
Which module is part of the traction converter cubical that manages the voltage output?
What role does the pre-charging DC contactor serve in a motor coach's electrical system?
What role does the pre-charging DC contactor serve in a motor coach's electrical system?
In the context of motor coach equipment, what does the Traction Transformer specifically do?
In the context of motor coach equipment, what does the Traction Transformer specifically do?
Which equipment is primarily responsible for the air suspension system in a motor coach?
Which equipment is primarily responsible for the air suspension system in a motor coach?
Which type of equipment is essential for ensuring the temperature control in the passenger area of a motor coach?
Which type of equipment is essential for ensuring the temperature control in the passenger area of a motor coach?
What is the function of different rotary switches found in the passenger area of the motor coach?
What is the function of different rotary switches found in the passenger area of the motor coach?
Flashcards
Brake Controller
Brake Controller
A device used to control the braking system of a train or other vehicles.
Master Controller (MC)
Master Controller (MC)
A key component in controlling train movement and braking.
Shunting Desk
Shunting Desk
A control panel used for maneuvering rolling stock in a rail yard (shunting).
Brake Electronics Control Unit (BECU)
Brake Electronics Control Unit (BECU)
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Traction Control Unit
Traction Control Unit
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AC-DC converter
AC-DC converter
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DC earthing switch
DC earthing switch
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Earth Fault Detector
Earth Fault Detector
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Line Filter
Line Filter
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Auxiliary Converter Unit
Auxiliary Converter Unit
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Pantograph (Am-1882)
Pantograph (Am-1882)
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Surge Arrestor
Surge Arrestor
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Line Voltage Transformer
Line Voltage Transformer
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3-Phase AC Output (Auxiliary)
3-Phase AC Output (Auxiliary)
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1-Phase AC Output (Auxiliary)
1-Phase AC Output (Auxiliary)
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110V DC Output (Auxiliary)
110V DC Output (Auxiliary)
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Line Current Transformer
Line Current Transformer
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Voltage Sensing Device
Voltage Sensing Device
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Change Over Switch AC/DC
Change Over Switch AC/DC
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High Voltage AC Circuit Breaker (HVCB)
High Voltage AC Circuit Breaker (HVCB)
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High Speed DC Circuit Breaker (HSCB)
High Speed DC Circuit Breaker (HSCB)
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Traction Motors
Traction Motors
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Trailer Coach (TC)
Trailer Coach (TC)
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Non-Driving Trailer Coach (NDTC)
Non-Driving Trailer Coach (NDTC)
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What is a KLIP Station?
What is a KLIP Station?
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What are Transducers?
What are Transducers?
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What are Sensors?
What are Sensors?
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Voltage Transducer
Voltage Transducer
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Current Transducer
Current Transducer
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Pressure Transducer
Pressure Transducer
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Speed Sensor
Speed Sensor
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What is the HT Power Circuit?
What is the HT Power Circuit?
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IGBT Modules
IGBT Modules
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Isolation Transformer
Isolation Transformer
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Auxiliary Machines
Auxiliary Machines
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Battery Charging Equipment
Battery Charging Equipment
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Redundancy Lines
Redundancy Lines
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Rescue Drive Mode
Rescue Drive Mode
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Auxiliary Inverter
Auxiliary Inverter
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What powers the auxiliary equipment?
What powers the auxiliary equipment?
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End Basic Unit
End Basic Unit
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Middle Basic Unit
Middle Basic Unit
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Motor Coach (MC)
Motor Coach (MC)
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What are the types of basic train units?
What are the types of basic train units?
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Auxiliary Tell-Tale Lamps
Auxiliary Tell-Tale Lamps
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Pressure Panel
Pressure Panel
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Man Machine Interface (MMI)
Man Machine Interface (MMI)
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Train Radio and Passenger Information System (PIS)
Train Radio and Passenger Information System (PIS)
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Guard Panel Right-Hand Side
Guard Panel Right-Hand Side
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Electronics Cabinet DTC (Diagnostic Trouble Code)
Electronics Cabinet DTC (Diagnostic Trouble Code)
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Shunting Cab
Shunting Cab
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Major Equipment of Motor Coach
Major Equipment of Motor Coach
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Transducers
Transducers
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Sensors
Sensors
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HT Power Circuit
HT Power Circuit
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Pre-Charging AC Contactor
Pre-Charging AC Contactor
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Pre-Charging DC Contactor
Pre-Charging DC Contactor
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Four Quadrant Chopper Module
Four Quadrant Chopper Module
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What is the role of the Pre-charging Resistor?
What is the role of the Pre-charging Resistor?
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What is the Traction Converter Cubicle?
What is the Traction Converter Cubicle?
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What is the function of the Pulse Width Modulated Inverter?
What is the function of the Pulse Width Modulated Inverter?
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What is the role of SIBAS KLIP Station?
What is the role of SIBAS KLIP Station?
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What is the purpose of Ventilation Fans in the passenger area?
What is the purpose of Ventilation Fans in the passenger area?
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What are MCBs?
What are MCBs?
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What are Rotary Switches?
What are Rotary Switches?
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What are the conditions to raise the pantograph?
What are the conditions to raise the pantograph?
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How is the pantograph lowered?
How is the pantograph lowered?
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Pantograph lowering in emergencies
Pantograph lowering in emergencies
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What happens when the driver's cab is changed?
What happens when the driver's cab is changed?
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What powers the auxiliary compressor?
What powers the auxiliary compressor?
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Study Notes
General Description
- The AC-DC EMU is a newly designed train using IGBT control technology.
- It's designed for DC and AC territory, specifically in the Mumbai suburban area.
- The vehicle has a driver-friendly diagnostic display (MMI) unit.
- The maintenance manual details the maintenance and overhaul procedures for the electrical and mechanical equipment of Siemens Rake.
Abbreviations
- ACU: Auxiliary Control Unit
- ADC/COS: AC/DC Changeover Switch
- AFB: Automatic Traction/Brake Control (Cruise Control)
- AM: Shut Off Valve (Parking Brake Circuit)
- AWS: Auxiliary Warning System
- BCU: Brake Control Unit
- BW: Braking Resistor
- CCU: Central Control Unit
- DCS: Driver's control switch (Master key)
- DM: Diagnostic Message
- DTC: Driving Trailer Coach
- EBU: End Basic Unit
- EBL: Emergency Brake Loop
- ES: Electronic Cabinet
- FML: Traction Motor Fan
- GTO: Gate Turn Off Thyristor
- HB: Main Air Compressor
- HBL: Main MR Pipe
- HL: Main Brake Pipe
- HSCB: High Speed Circuit Breaker
- HTC: High Tension Compartment
- IGBT: Insulated Gate Bi-Polar Transistor
- MBU: Middle Basic Unit
- MMI: Man Machine Interface
- MPS: Motor protective switch
- MS: Main Switch
Three-Phase Technology
- The vehicle uses three-phase asynchronous motors for smooth acceleration.
- This design reduces weight, improves reliability, and provides good starting properties over a wider speed range.
- Regenerative braking reduces wear and improves energy conservation.
Control Technology
- Two Central Control Units (CCUs) are in the driver's cab, controlling the entire train and the display.
- Vehicles are connected via a redundant MVB bus.
- In rescue drive mode, the display is off, and the auxiliary tell-tale lamps are on.
- All switches, buttons, and devices are connected to a KLIP station.
Display Support
- The MMI (Man-Machine Interface) displays important train functions with colored icons for error detection.
- The display guides the driver with remedies for error messages.
- Automatic vigilance is implemented ensuring the automatic application of brakes if the driver disengages the vigilance monitoring button while driving above 5km/h.
Auxiliary Equipment
- Three-phase auxiliary equipment are supplied by an auxiliary inverter with voltages for:
- Fans and main air compressor
- Passenger compartment fans and lighting
- Auxiliary air compressors, plugs, and emergency lighting.
- Auxiliary equipment operates at a fixed frequency (50 Hz) and voltage.
Unit & Rake Formation of EMU
- The EMU has two basic units: end basic unit and middle basic unit.
- End basic unit consists of a Motor Coach, Driving Trailer Coach, and Trailer Coach.
- Middle basic unit consists of a Motor Coach, Non Driving Trailer Coach, and Trailer Coach.
- Various train formations are possible, including 9, 12, and 15 car rakes.
Major Equipment of DTC (Driving Trailer Coach)
- The Driving Cab includes various controls, such as speedometers, signal lights, pressure panels, switches, and controllers for functions like brakes and master controllers.
Driving Desk
- The Driving Desk includes a brake controller, master controller, various push buttons, rotary switches, and indicators.
- Important components include TMS (Train Management System), foot-operated hooter valves, and AWS indication panel.
Guard's Desk
- The Guard's Desk includes important components such as a brake pipe pressure gauge and panels for push buttons.
Electronics Cabinet DTC
- The Electronics Cabinet DTC levels 1 and 2 contain various isolating units, battery, brake release loops, and indicating systems.
Major Equipment of Motor Coach
- The Shunting Cab includes a brake controller, master controller, shunting desk, and various controls.
- Electronics/Cabinet components relate to the Brake, Electronics Control Unit (BECU)
HT Compartment
- The HT compartment contains traction converters and associated components, such as AC-DC converters, PWM inverter modules, and control units.
Transducers and Sensors
- Various transducers like voltage, current, pressure, speed, and oil flow sensors convert physical quantities to electrical signals.
- These signals aid in control system functions.
Electrical Equipment in Motor Coach
- Pre-charging AC and DC contactors, regulating current and voltage for better machine function for both AC and DC systems.
- The DC link capacitor is initially charged through a pre-charging resistor (during AC catenary operation).
Pantograph Control
- The pantograph is raised and lowered using a compressed-air system and a rotary switch in the driver's cab
- The system raises/lowers the pantograph automatically or manually.
Main Circuit-Breaker Control
- The AC and DC main circuit breakers are located on the roof, controlled electronically by the TCU, ensuring voltage and safety functions.
Earthing
- The procedure for connecting basic units to earth, personal protection instructions for entering and exiting the HTC (High Tension Compartment), keys that manage each process, and the process steps are listed.
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Description
Test your knowledge on the maintenance and operational procedures of the newly designed AC-DC EMU trains, specifically tailored for the Mumbai suburban area. This quiz covers IGBT control technology and various essential abbreviations related to the train's systems. Perfect for anyone involved in railway engineering or maintenance!
