Technical Specifications Quiz
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Questions and Answers

What is the significance of the figure '864' mentioned in the context provided?

  • It indicates the angle for operation. (correct)
  • It refers to the model number of a unit.
  • It marks the height of the installation.
  • It represents the maximum load capacity.

    • Which component is associated with the reference number '8929167M'?

  • Limit dimensions of vertical drive shaft.
  • Bevel gear CD 6400. (correct)
  • Motor-drive unit ED.
  • Aperture in protective housing.

    • What does the 'ZS010157' designation refer to in this context?

  • Data sheet for the protective housing.
  • Dimension drawing for the drive shaft.
  • Connection diagrams for the VACUTAP. (correct)
  • Adjustment plan for the motor unit.

    • What is the primary function of the On-load tap-changer VACUTAP® VT I 500?

    <p>To control the voltage levels.</p> Signup and view all the answers

    What does the term 'insulating shaft length' refer to?

    <p>Length specifications for safe operation.</p> Signup and view all the answers

    In the provided dimensions, which part has an accessible fixing hole?

    <p>Protective housing.</p> Signup and view all the answers

    What can be inferred about the data provided in the publication?

    <p>It is subject to change without notice.</p> Signup and view all the answers

    What is the function of the 'limit dimensions of vertical drive shaft' mentioned?

    <p>To ensure proper alignment in assembly.</p> Signup and view all the answers

    What is the maximum rated current for the VT I 500 on-load tap-changer?

    <p>500 A</p> Signup and view all the answers

    What is the rated peak withstand current for the on-load tap-changer?

    <p>12.5 kA</p> Signup and view all the answers

    How many operating positions are available for the on-load tap-changer?

    <p>9 positions</p> Signup and view all the answers

    What is the rated lightning impulse withstand voltage between two adjacent contacts of the tap selector?

    <p>20 kV</p> Signup and view all the answers

    What is the rated AC withstand voltage to ground for the on-load tap-changer?

    <p>85 kV</p> Signup and view all the answers

    Which environmental medium is specified for the on-load tap-changer?

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

    What is the highest voltage for equipment (Um) for the on-load tap-changer?

    <p>40.5 kV</p> Signup and view all the answers

    How long is the rated short-circuit duration for the on-load tap-changer?

    <p>3 seconds</p> Signup and view all the answers

    What is the primary responsibility of the transformer manufacturer regarding the on-load tap-changer?

    <p>To select correct properties of the tap-changer for transformer requirements.</p> Signup and view all the answers

    Which section contains essential information on connection and current division for the tap-changer?

    <p>General section (TD 61).</p> Signup and view all the answers

    Why are dimensional drawings and connection diagrams subject to change?

    <p>Due to the specifications of the transformer manufacturer.</p> Signup and view all the answers

    What should be considered in conjunction with type-specific data for the tap-changer?

    <p>Information in the general section (TD 61).</p> Signup and view all the answers

    What aspect of the on-load tap-changer is the technical data intended for?

    <p>Calculation and design for the transformer.</p> Signup and view all the answers

    What is the purpose of the rated switching capacity (PStN) in the technical data?

    <p>To assess the maximum operational load.</p> Signup and view all the answers

    What can be inferred about the contact life mentioned in the technical data?

    <p>It can vary significantly based on operational conditions.</p> Signup and view all the answers

    Which of the following statements about the technical data document is accurate?

    <p>It outlines specifications relevant to the on-load tap-changer.</p> Signup and view all the answers

    What is the maximum ambient temperature at which the system can operate?

    <p>+65 °C</p> Signup and view all the answers

    What is the rated through-current (Iu) for the lower range model?

    <p>280 A</p> Signup and view all the answers

    What mechanism is used to drive the motor in the protective housing?

    <p>Electric drive unit ED</p> Signup and view all the answers

    What is the maximum number of switching operations allowed per minute?

    <p>1</p> Signup and view all the answers

    How much power does the motor associated with the drive mechanism use?

    <p>0.75 kW</p> Signup and view all the answers

    What is the rated step capacity (PStN) for both models?

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

    Which rated step voltage (Ui) corresponds to the higher rated through-current?

    <p>900 V</p> Signup and view all the answers

    What feature does the drive mechanism have for emergency operation?

    <p>Hand crank for adjustment</p> Signup and view all the answers

    What is the expected contact life of the vacuum interrupters?

    <p>200,000 switching operations</p> Signup and view all the answers

    After how many switching operations must the vacuum interrupters be replaced?

    <p>200,000 switching operations</p> Signup and view all the answers

    What document may contain the installation drawing for the VACUTAP® VT I 500?

    <p>On-load tap-changer VACUTAP® VT I 500, installation drawing</p> Signup and view all the answers

    Which of the following documents includes adjustment plans for the VACUTAP® VT I 500?

    <p>On-load tap-changer VACUTAP® VT I 500, adjustment plan</p> Signup and view all the answers

    Which document would detail the switching sequence for the VACUTAP® VT I 500?

    <p>On-load tap-changer VACUTAP® VT I 500, switching sequence</p> Signup and view all the answers

    What aspect of vacuum interrupters is independent of step voltage and through-current?

    <p>Contact life</p> Signup and view all the answers

    Which component is part of the documentation for the VACUTAP® VT I 500?

    <p>On-load tap-changer VACUTAP® VT I 500, connection diagrams</p> Signup and view all the answers

    What is the purpose of the vertical drive shaft mentioned in the documents?

    <p>Supporting the motor drive unit</p> Signup and view all the answers

    The rated lightning impulse withstand voltage to ground for the VT I 500 is 100 kV.

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

    The highest voltage for equipment (Um) for the on-load tap-changer is 50 kV.

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

    The on-load tap-changer can operate in a horizontal installation position.

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

    The operating conditions for the on-load tap-changer specify ambient class E1.

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

    The maximum rated step voltage (Uim) for the on-load tap-changer is 1000 V.

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

    The maximum rated through-current (Ium) for the VT I 500 is 600 A.

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

    The rated short-circuit duration for the on-load tap-changer is 5 seconds.

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

    The rated AC withstand voltage between any two adjacent contacts of the tap selector is 10 kV.

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

    The maximum ambient temperature for operation is +65 °C.

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

    The weight of the equipment can reach up to 150 kg.

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

    The rated through-current (Iu) for the higher model is 500 A.

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

    The rated step voltage (Ui) of the lower model is 900 V.

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

    The drive mechanism includes a hand crank for adjustment purposes.

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

    The maximum switching operations allowed per minute is 2.

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

    The rated step capacity (PStN) for both models is 300 kVA.

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

    The drive mechanism operates on a 3 AC 230/400 V supply.

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

    The limit dimensions of the vertical drive shaft are indicated as 8929167M.

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

    The on-load tap-changer VACUTAP® VT I 500 is denoted by the code 8973776E.

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

    The adjustment plan for the on-load tap-changer VACUTAP® VT I 500 has the designation 8979754E.

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

    The connection diagrams for the VACUTAP® VT I 500 are labelled as ZS010157.

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

    The document indicates that the data may differ from the delivered devices.

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

    The maximum number of switching operations allowed per minute for the on-load tap-changer is 10.

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

    The drive mechanism of the on-load tap-changer is operated by a vertical drive shaft.

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

    The published technical data is not subject to change.

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

    The contact life of vacuum interrupters amounts to 300,000 switching operations.

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

    Vacuum interrupters need to be replaced after 200,000 switching operations regardless of through-current.

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

    The installation drawing for the VACUTAP® VT I 500 is contained in the reference number 898312.

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

    The rated step capacity (Iu, Ui) for on-load tap-changers is represented by the figure 899507.

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

    The motor drive unit ED-S is associated with the reference number 898801.

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

    The adjustment plan for the VACUTAP® VT I 500 has a reference number of 897975.

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

    The bevel gear CD 6400's dimension drawing is labeled with the reference number 892916.

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

    The connection diagrams for the VACUTAP® VT I 500 figure is specified under reference number 897977.

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

    The on-load tap-changer VACUTAP® VT I 500 can be operated exclusively in a vertical installation position.

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

    The protective housing of the motor-drive unit ED-S must always be opened to the left.

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

    The maximum rated step voltage (Uim) for the on-load tap-changer is 1000 V.

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

    A total of 3 dummy plates for packing glands are included with every design of the on-load tap-changer.

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

    The rated short-circuit duration for the on-load tap-changer is stated to be 10 seconds.

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

    The rated lightning impulse withstand voltage to ground for the VT I 500 is 120 kV.

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

    The horizontal guard plate with spacing ring is an essential component of the protective housing design.

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

    The rated AC withstand voltage between any two adjacent contacts of the tap selector is 15 kV.

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

    Study Notes

    General Information

    • On-load tap-changer model: VACUTAP® VT I 500
    • Compliance with IEC 60214 and VDE DIN EN 60214 standards.
    • Maximum rated through-current (Ium): 500 A.
    • Rated short-time withstand current: 5 kA for 3 seconds.
    • Rated peak withstand current: 12.5 kA.

    Key Technical Specifications

    • Rated short-circuit duration: 3 seconds.
    • Maximum rated step voltage (Uim): 900 V.
    • Step capacity (PStN): 250 kVA.
    • Maximum operating positions: 9 (no change-over selector).
    • Rated frequency: 50-60 Hz.

    Insulation and Environmental Ratings

    • Highest voltage for equipment (Um): 40.5 kV.
    • Rated lightning impulse withstand voltage: 200 kV (to ground).
    • Rated AC withstand voltage: 85 kV (to ground, 1 min).
    • Ambient installation position: vertical, with attachment only on the top.

    Operating Conditions

    • Designed for indoor installation; maximum altitude of 1000 m above sea level.
    • Operating temperature range: -25 °C to +65 °C.
    • Maximum frequency of operation: 1 switching operation per minute.
    • Weight: approximately 70 kg (single unit) and 210 kg (three-unit configurations).

    Drive Mechanism

    • Utilizes motor drive unit ED with a protective housing suitable for outdoor installation.
    • Motor specifications: 3 AC 230/400 V, 50 Hz, 0.75 kW.
    • Electrical/mechanical end position limit; includes remote position indication facilities.
    • Hand crank provided for adjustment and emergency operation.

    Contact Life and Maintenance

    • Vacuum interrupters have a contact life of 200,000 switching operations.
    • Replacement required after reaching the contact life limit.

    Additional Drawings and Diagrams

    • Installation drawings, dimension drawings, and connection diagrams are available for reference.
    • Important technical information contained within relevant appendices and figures.

    General Overview

    • On-load tap-changers comply with IEC Publication 60214 3ED 89 and VDE standard DIN EN 60214.
    • Models include the VACUTAP® VT I 500 with configurations for 1 and 3 poles.
    • Maximum rated through-current is 500 A, with a short-time withstand current capacity of 5 kA.

    Technical Specifications

    • Rated peak withstand current is 12.5 kA, and max. rated step voltage is 900 V.
    • Rated short-circuit duration is 3 seconds, with step capacity (PStN) rated at 250 kVA.
    • Maximum positions for operation: 9, with no change-over selector available.
    • Rated frequency ranges from 50 Hz to 60 Hz.

    Insulation and Safety Ratings

    • Highest voltage for equipment is 40.5 kV; lightning impulse withstand voltage to ground is 200 kV.
    • Rated AC withstand voltage to ground: 85 kV; for tap selector contacts: varies from 5 kV to 80 kV.

    Installation and Environmental Considerations

    • Installation is vertical, requiring top attachment for on-load tap-changer.
    • Operating conditions allow for indoor installations up to 1000 meters above sea level.
    • Ambient temperature capability ranges from -25 °C to +65 °C.

    Performance Characteristics

    • Maximum frequency of operation: 1 switching operation per minute; running time per operation is 5.3 seconds.
    • Device weights approximately 70 kg for single pole models and 210 kg for three-pole models.
    • Drive mechanism utilizes a motor drive unit ED, with provisions for local and remote control options.

    Contact Life and Replacement

    • Vacuum interrupters have a contact life of 200,000 switching operations, requiring replacement after this threshold regardless of voltage and current.

    Documentation and Drawings

    • Includes installation drawings, dimension drawings, switching sequences, and connection diagrams for proper setup and maintenance.
    • Specific documents and diagrams are referenced with unique identifiers for ease of access.

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