Podcast
Questions and Answers
What triggers the protective relay to trip the circuit breakers?
What triggers the protective relay to trip the circuit breakers?
Which of the following statements is true regarding the protective relay?
Which of the following statements is true regarding the protective relay?
In which document does the protective relay conform to its properties?
In which document does the protective relay conform to its properties?
What happens to the flap valve when the protective relay is triggered?
What happens to the flap valve when the protective relay is triggered?
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What effect does the diverter switch's rated switching capacity have on the protective relay?
What effect does the diverter switch's rated switching capacity have on the protective relay?
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Which component is responsible for de-energizing the transformer when the protective relay is activated?
Which component is responsible for de-energizing the transformer when the protective relay is activated?
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What is the maximum time frame within which the oil compartment should be sealed after drying the on-load tap-changer?
What is the maximum time frame within which the oil compartment should be sealed after drying the on-load tap-changer?
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Which drying method is NOT mentioned as an option for the on-load tap-changer?
Which drying method is NOT mentioned as an option for the on-load tap-changer?
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What measure should be taken to prevent accidents when removing the on-load tap-changer head cover?
What measure should be taken to prevent accidents when removing the on-load tap-changer head cover?
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If a transformer ratio test is to be performed after drying, which section should be referenced?
If a transformer ratio test is to be performed after drying, which section should be referenced?
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Which of the following is an alternative method for drying the on-load tap-changer?
Which of the following is an alternative method for drying the on-load tap-changer?
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What risk is associated with explosive gases under the on-load tap-changer head cover?
What risk is associated with explosive gases under the on-load tap-changer head cover?
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Which instruction is necessary before moving the on-load tap-changer into the adjustment position?
Which instruction is necessary before moving the on-load tap-changer into the adjustment position?
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What is a key consideration when deciding between vacuum drying and vapor-phase drying for the on-load tap-changer?
What is a key consideration when deciding between vacuum drying and vapor-phase drying for the on-load tap-changer?
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What is the primary function of the OILTAP® V product?
What is the primary function of the OILTAP® V product?
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In which type of systems is the product intended to be used?
In which type of systems is the product intended to be used?
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What must be adhered to in order to ensure that the product does not pose any danger?
What must be adhered to in order to ensure that the product does not pose any danger?
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What is stated about the technology used in the product?
What is stated about the technology used in the product?
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What may occur if the product is not used properly?
What may occur if the product is not used properly?
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What aspect of the product's lifecycle does the technical file cover?
What aspect of the product's lifecycle does the technical file cover?
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Which of the following is NOT a focus of the safety instructions?
Which of the following is NOT a focus of the safety instructions?
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What is the consequence of using the product against the specified requirements?
What is the consequence of using the product against the specified requirements?
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What is the purpose of restricting the DC current to 10% of the rated current during measurement?
What is the purpose of restricting the DC current to 10% of the rated current during measurement?
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When measuring DC resistance with the oil compartment empty, what is the maximum permitted current without interruption?
When measuring DC resistance with the oil compartment empty, what is the maximum permitted current without interruption?
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What occurs if moisture is present in the oil compartment of the on-load tap-changer?
What occurs if moisture is present in the oil compartment of the on-load tap-changer?
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Which statement is true regarding the measurement of DC resistance with interruptions when the oil compartment is filled with insulating fluid?
Which statement is true regarding the measurement of DC resistance with interruptions when the oil compartment is filled with insulating fluid?
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In what scenario is a maximum of 50 A DC permissible during a DC resistance measurement?
In what scenario is a maximum of 50 A DC permissible during a DC resistance measurement?
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Why is it important to monitor the status of the oil compartment during measurements?
Why is it important to monitor the status of the oil compartment during measurements?
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How does the maximum measured current differ when the oil compartment is empty compared to when it is filled with insulating fluid?
How does the maximum measured current differ when the oil compartment is empty compared to when it is filled with insulating fluid?
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What is the consequence of changing the operating position while measuring DC resistance?
What is the consequence of changing the operating position while measuring DC resistance?
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What is the maximum height for stacking crates to prevent damage?
What is the maximum height for stacking crates to prevent damage?
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Which materials are mentioned as part of the packaging process?
Which materials are mentioned as part of the packaging process?
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When should crates be stacked upright?
When should crates be stacked upright?
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What should be avoided to keep packaged goods functional?
What should be avoided to keep packaged goods functional?
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What guarantees the stability of packaged goods during transport?
What guarantees the stability of packaged goods during transport?
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Which aspect of packing is specifically aimed to prevent humidity damage?
Which aspect of packing is specifically aimed to prevent humidity damage?
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What symbols are necessary to follow for the shipment of non-hazardous goods?
What symbols are necessary to follow for the shipment of non-hazardous goods?
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Which is NOT a guideline for the stacking of crates?
Which is NOT a guideline for the stacking of crates?
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Protective clothing should have loose sleeves to prevent getting caught in machinery.
Protective clothing should have loose sleeves to prevent getting caught in machinery.
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Safety glasses are designed to protect the eyes from thermal hazards only.
Safety glasses are designed to protect the eyes from thermal hazards only.
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Hearing protection is necessary when exposed to environments that can lead to hearing damage.
Hearing protection is necessary when exposed to environments that can lead to hearing damage.
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Safety shoes can help prevent injuries from falling heavy objects and slipping on wet surfaces.
Safety shoes can help prevent injuries from falling heavy objects and slipping on wet surfaces.
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Hard hats provide protection primarily against respiratory hazards.
Hard hats provide protection primarily against respiratory hazards.
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Protective gloves are only useful for protecting against thermal hazards.
Protective gloves are only useful for protecting against thermal hazards.
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The standard version of the drive shaft includes a cardan joint and an insulator.
The standard version of the drive shaft includes a cardan joint and an insulator.
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The maximum permissible axial offset for the drive shaft configuration is 4°.
The maximum permissible axial offset for the drive shaft configuration is 4°.
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An intermediate bearing is required when the maximum value of 2472 mm is exceeded.
An intermediate bearing is required when the maximum value of 2472 mm is exceeded.
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The drive shaft does not utilize any coupling components or protective features.
The drive shaft does not utilize any coupling components or protective features.
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The protective tube is one of the eight main components listed for the drive shaft.
The protective tube is one of the eight main components listed for the drive shaft.
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The middle of the hand crank to the middle of the bevel gear measures 536 mm.
The middle of the hand crank to the middle of the bevel gear measures 536 mm.
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The on-load tap-changer is designed in a spherical form which serves only as a tap selector.
The on-load tap-changer is designed in a spherical form which serves only as a tap selector.
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The insulating fluid in the on-load tap-changer is separated from the transformer oil by a cylindrical pressure-proof oil compartment.
The insulating fluid in the on-load tap-changer is separated from the transformer oil by a cylindrical pressure-proof oil compartment.
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The motor-drive unit is responsible for adjusting the operational position of the on-load tap-changer upon receiving a control impulse from a humidity regulator.
The motor-drive unit is responsible for adjusting the operational position of the on-load tap-changer upon receiving a control impulse from a humidity regulator.
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The on-load tap-changer head secures the tap-changer to the transformer cover.
The on-load tap-changer head secures the tap-changer to the transformer cover.
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The crate must remain open during transport to ensure proper ventilation.
The crate must remain open during transport to ensure proper ventilation.
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The delivery position of the on-load tap-changer and motor-drive unit is always in the operational mode.
The delivery position of the on-load tap-changer and motor-drive unit is always in the operational mode.
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The system overview of the on-load tap-changer transformer includes a horizontal drive shaft and an oil conservator.
The system overview of the on-load tap-changer transformer includes a horizontal drive shaft and an oil conservator.
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Only trained and authorized persons are allowed to select the sling gear and secure the load.
Only trained and authorized persons are allowed to select the sling gear and secure the load.
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The primary purpose of the diverter switch is to change the transformer's transmission ratio directly.
The primary purpose of the diverter switch is to change the transformer's transmission ratio directly.
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Dropping, tipping, or colliding with the product can lead to expected damage regardless of weight.
Dropping, tipping, or colliding with the product can lead to expected damage regardless of weight.
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It is safe to walk under a suspended load while it is being lifted.
It is safe to walk under a suspended load while it is being lifted.
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The active part of the transformer is labeled as the component number 10 in the system overview.
The active part of the transformer is labeled as the component number 10 in the system overview.
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Using means of transport and lifting gear with a carrying capacity less than that stated on the delivery slip is acceptable.
Using means of transport and lifting gear with a carrying capacity less than that stated on the delivery slip is acceptable.
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Oscillation stress is not a concern during transport of the product.
Oscillation stress is not a concern during transport of the product.
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It is essential to damage the connection contacts when lowering the on-load tap-changer into the transformer.
It is essential to damage the connection contacts when lowering the on-load tap-changer into the transformer.
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A suitable gasket must be placed on the mounting flange to ensure compatibility with the insulating fluid.
A suitable gasket must be placed on the mounting flange to ensure compatibility with the insulating fluid.
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Connecting leads should be twisted to secure a stable connection.
Connecting leads should be twisted to secure a stable connection.
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The tightening torque for the on-load tap-changer head is standardized across all screw connection elements.
The tightening torque for the on-load tap-changer head is standardized across all screw connection elements.
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An expansion loop can be used if the connecting leads cause excessive mechanical strain on the on-load tap-changer.
An expansion loop can be used if the connecting leads cause excessive mechanical strain on the on-load tap-changer.
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Cleaning the sealing surfaces on the mounting flange is not necessary before installation.
Cleaning the sealing surfaces on the mounting flange is not necessary before installation.
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The installation of the on-load tap-changer should not consider the design specifications.
The installation of the on-load tap-changer should not consider the design specifications.
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The tap winding and on-load tap-changer take-off lead must follow the connection diagram provided with the delivery.
The tap winding and on-load tap-changer take-off lead must follow the connection diagram provided with the delivery.
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Study Notes
Safety
- Familiarizing with the technical file is crucial for safe product use.
- The on-load tap-changer adjusts transformer transmission ratios without interrupting load flow.
- Designated solely for electrical energy systems, the product poses no danger if used correctly.
- Safety applies from delivery to disposal, protecting users, property, and the environment.
Protective Devices
- Protective relay integrated into the circuit breaker tripping circuit.
- Triggers when the flow speed from the tap-changer to oil conservator exceeds limits.
- Flap valve actuated by insulating fluid flow turns off the circuit breakers, de-energizing the transformer.
- Complies with IEC publication 60214-1 standards and does not react to gas accumulation.
Packaging and Transport
- Proper crate stacking is essential to avoid product damage; do not stack above 1.5 m or pair crates exceeding 2.
- Packaged in sturdy crates with plastic foil and desiccant for humidity control.
- Packaging includes clear markings for safe transport and storage.
Mounting Procedures
- DC resistance measurement limited to 10% of rated current to prevent winding overheating.
- Oil compartment states dictate measured current limits during resistance measurement.
- Maximum permitted currents distinguish between empty and filled oil compartments.
Drying Procedures
- Moisture in the oil compartment negatively affects insulation, increasing risk of damage.
- Seal oil compartment within 10 hours post-drying for optimal dielectric strength.
- Drying methods include vacuum and vapor-phase in an autoclave, or within transformer tank.
Safety Warnings
- Ensure no ignition sources are present when removing the tap-changer head cover to avoid explosive hazards.
Protective Clothing and Equipment
- Close-fitting work clothing prevents getting caught in moving machinery.
- Safety shoes protect against falling objects and provide slip resistance.
- Safety glasses shield eyes from flying debris and hazardous liquids.
- Visors guard the face from flying objects and dangerous substances.
- Hard hats offer protection from falling and flying materials.
- Hearing protection prevents noise-induced hearing damage.
- Protective gloves protect hands from mechanical, thermal, and electrical risks.
Product Description of Motor-Drive Unit
- Motor-drive unit adjusts the transformer’s transmission ratio based on control impulses.
- Components include transformer tank, motor-drive unit, on-load tap-changer, and protective relays.
- On-load tap-changer functions as a diverter switch and tap selector within a tubular design.
- Insulating fluid is separated from transformer oil using a cylindrical pressure-proof compartment.
Drive Shaft Configuration
- Standard drive shaft does not include a cardan joint or insulator.
- Maximum axial offset allowed is 2°; failure to comply requires an intermediate bearing.
- Measurements specify 536 mm at the middle of the hand crank to the middle of the bevel gear.
Transportation, Receipt, and Handling
- Closed crates must be transported to avoid injury from falling loads.
- Securing materials must remain intact during transport.
- Load capacity of lifting gear must match the weight specified in delivery documentation.
- Avoid dropping, tipping, or colliding with products to prevent damage.
Mounting Procedure
- Lift on-load tap-changer by its head, ensuring no damage occurs to connection contacts.
- Verify on-load tap-changer head is positioned according to design specifications.
- Secure the on-load tap-changer head to the mounting flange with appropriate tightening torque.
- Care must be taken to avoid mechanical strain when connecting tap windings and leads.
- Utilize expansion loops as necessary to prevent twisting or warping of connecting leads.
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Description
This quiz covers essential safety instructions and guidelines related to technical files for products like OILTAP® V. Understanding these safety protocols is crucial for ensuring safe handling and operation of technical machinery. Familiarize yourself with the safety measures to prevent accidents and ensure compliance.
