Traction Converter Cubicle Overview
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Questions and Answers

What is the nominal input voltage of the traction converter cubicle?

  • 46Hz - 54 Hz
  • 16.5-28.5 kV
  • 2 x 950 V AC, 50 Hz / 1500V DC (correct)
  • 627 V-1083 V AC

    • What is the input voltage range in AC mode?

  • 627 V-1083 V AC (correct)
  • 16.5-28.5 kV
  • 46Hz - 54 Hz
  • 2 x 950 V AC, 50 Hz / 1500V DC

    • What is the input frequency range in AC mode?

  • 2 x 950 V AC, 50 Hz / 1500V DC
  • 16.5-28.5 kV
  • 627 V-1083 V AC
  • 46Hz - 54 Hz (correct)

    • What is the nominal DC link circuit voltage for traction operation?

    <p>1800 V</p> Signup and view all the answers

    What traction system does the traction converter work on?

    <p>Dual voltage system i.e. line input of 1500V DC or 950V, 1ph, 50Hz AC (25KV AC line).</p> Signup and view all the answers

    What are the components of the traction converter?

    <p>Two four-quadrant chopper, one DC link, two PWM Inverters each delivering two traction motors, DC link capacitors, contactors, transducers, blowers etc.</p> Signup and view all the answers

    What controls and monitors the traction converter?

    <p>Siemens' Traction control unit (TCU) SIBAS® 32S</p> Signup and view all the answers

    What are the functional sections of the traction converter in AC mode?

    <p>Pulse width modulated inverter &amp; Braking chopper</p> Signup and view all the answers

    The pre-charging resistor is connected in parallel to the main contactor.

    <p>True</p> Signup and view all the answers

    The purpose of the 4QC module is to transform the input voltage into a controlled direct voltage for the DC link circuit.

    <p>True</p> Signup and view all the answers

    The IGBT's are used as switches with a low closing sequence.

    <p>False</p> Signup and view all the answers

    What is the number of 4 QC per Traction Converter Cubical (TCC)?

    <p>2</p> Signup and view all the answers

    What type of semiconductor is used in the Traction Converter Cubical?

    <p>IGBT</p> Signup and view all the answers

    What is the pulse frequency of the Traction Converter Cubical?

    <p>750 Hz</p> Signup and view all the answers

    What is the number of PWMI per TCC?

    <p>2</p> Signup and view all the answers

    What type of semiconductor is used in the PWMI?

    <p>IGBT</p> Signup and view all the answers

    What is the pulse frequency of the PWMI?

    <p>Variable, up to 800Hz</p> Signup and view all the answers

    Protection resistors are internally connected to the brake chopper.

    <p>False</p> Signup and view all the answers

    How many brake choppers are used per TCC?

    <p>2</p> Signup and view all the answers

    What type of semiconductor is used in the brake chopper?

    <p>IGBT</p> Signup and view all the answers

    What is the pulse frequency of the brake chopper?

    <p>250 Hz</p> Signup and view all the answers

    What is the capacity of the DC link circuit?

    <p>12 mF -0% +10%</p> Signup and view all the answers

    What is the inductance of the line reactor?

    <p>6 mH -0% to+10%</p> Signup and view all the answers

    What is the control voltage range?

    <p>110 V DC</p> Signup and view all the answers

    What is the continuous power demand of the traction converter?

    <p>approx. 6.2 kW</p> Signup and view all the answers

    What type of ventilation system is used for the traction converter cabinet?

    <p>Forced air-cooled</p> Signup and view all the answers

    What is the type of the main blower?

    <p>2CS7-410-1RG11-0KK3</p> Signup and view all the answers

    What is the type of the auxiliary blower?

    <p>148DH9LM 18230</p> Signup and view all the answers

    What is the type of the DC Link Capacitor?

    <p>DCMKP 2.2/3mF or E56.M45-305680</p> Signup and view all the answers

    What is the type of the DC/DC power supply?

    <p>P354.1-IGBT</p> Signup and view all the answers

    What is the type of the current transducers?

    <p>CS1000BRVE or LTC600-SFC-SPxx</p> Signup and view all the answers

    What is the type of the voltage transducers?

    <p>A5E00303286</p> Signup and view all the answers

    What is the type of the intermediate transformer current?

    <p>TV 1164 (CT)</p> Signup and view all the answers

    What is the type of the SIBAS filter?

    <p>BNV 05.110.d/0.5 X2</p> Signup and view all the answers

    What is the type of the temperature sensor - Air inlet?

    <p>31138210</p> Signup and view all the answers

    What is the type of the pre-charging resistor?

    <p>PVR900T or GBS 60/370 60R +/-5%</p> Signup and view all the answers

    What is the type of the discharge resistor DC link?

    <p>PVR160 or GWS 300 SB 33K +/-5%</p> Signup and view all the answers

    What is the type of the grounding capacitor?

    <p>B25835-S2224-K057</p> Signup and view all the answers

    What is the type of the contactors for blower circuit?

    <p>3RT10172K F420LA0</p> Signup and view all the answers

    What is the type of the auxiliary contactors?

    <p>3RH11222K F400LA0</p> Signup and view all the answers

    What is the type of the SIBAS 32 S?

    <p>6FH4742-1A</p> Signup and view all the answers

    What is the type of the EMC capacitor?

    <p>343434</p> Signup and view all the answers

    What is the type of the intermediate transformer voltage monitoring?

    <p>TV 1162 (VT)</p> Signup and view all the answers

    Study Notes

    Traction Converter Cubicle

    • The traction converter cubicle is a complete unit in the motor coach's high-tension compartment
    • The traction control unit (TCU) is housed within the cabinet
    • Nominal input voltage is 2 x 950 V AC, 50 Hz / 1500V DC
    • AC mode input voltage range: 627 V - 1083 V AC, related to 16.5-28.5 kV line voltage
    • AC mode input frequency range: 46 Hz - 54 Hz
    • DC mode input voltage range: 800 V - 1800 V DC
    • Nominal DC link circuit voltage: AC Mode 1800 V, DC Mode 1500 V
    • Power factor in AC at different loads and line voltages: approximately unity

    Electrical System

    • The traction converter uses a dual voltage system (1500V DC or 950V, 1-phase, 50Hz AC, 25KV AC line)
    • It includes two four-quadrant choppers, a DC link, and two PWM inverters, each powering two traction motors
    • Other components include DC link capacitors, contactors, transducers, blowers, and Siemens' Traction control unit (TCU) SIBAS® 32S for control/monitoring.

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    Description

    This quiz explores the key components and functionalities of the traction converter cubicle used in motor coaches. Learn about the input voltage specifications, traction control unit (TCU), and the dual voltage system utilized in these systems. Test your knowledge on electrical systems related to traction converters.

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