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Questions and Answers
What is the dimension drawing code for the Protective relay RS 2001?
What is the dimension drawing code for the Protective relay RS 2001?
Which of the following items is associated with the motor drive unit MA 7?
Which of the following items is associated with the motor drive unit MA 7?
Which code corresponds to the Bevel gear CD 6400 dimension drawing?
Which code corresponds to the Bevel gear CD 6400 dimension drawing?
What item is represented by the code 895 660?
What item is represented by the code 895 660?
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Which dimension drawing indicates the Socket wrench for kerosene drainscrew?
Which dimension drawing indicates the Socket wrench for kerosene drainscrew?
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Identify the item linked to dimension drawing code 895 661.
Identify the item linked to dimension drawing code 895 661.
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What should be done if the transformer is to be transported or stored without oil filling?
What should be done if the transformer is to be transported or stored without oil filling?
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What precaution should be taken before returning a transformer to service after reconnecting?
What precaution should be taken before returning a transformer to service after reconnecting?
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How should the interior of the tap changer be protected during prolonged stand-by periods?
How should the interior of the tap changer be protected during prolonged stand-by periods?
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What action should be taken in case of serious trouble with the tap changer or motor drive when repair cannot be done on site?
What action should be taken in case of serious trouble with the tap changer or motor drive when repair cannot be done on site?
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What can gas accumulating under the cover of the tap changer head cause?
What can gas accumulating under the cover of the tap changer head cause?
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Which of the following actions is NOT recommended before reconnecting the transformer?
Which of the following actions is NOT recommended before reconnecting the transformer?
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What is the purpose of the by-pass tube installed between the connections E2 and Q?
What is the purpose of the by-pass tube installed between the connections E2 and Q?
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What should be done before removing the diverter switch during the oil filling process?
What should be done before removing the diverter switch during the oil filling process?
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What is the maximum torque setting for tightening the cover bolts M10 on the tap changer?
What is the maximum torque setting for tightening the cover bolts M10 on the tap changer?
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During the drying process in the autoclave, what temperature should be maintained?
During the drying process in the autoclave, what temperature should be maintained?
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What incorrect procedure should be avoided during the oil filling of the tap changer?
What incorrect procedure should be avoided during the oil filling of the tap changer?
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What substance is admitted to heat the tap changer during the drying process?
What substance is admitted to heat the tap changer during the drying process?
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Where should the protective relay RS 2001 be mounted relative to the tap changer head?
Where should the protective relay RS 2001 be mounted relative to the tap changer head?
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What must be done after drying in the autoclave and before inserting the diverter switch unit?
What must be done after drying in the autoclave and before inserting the diverter switch unit?
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Which shape is the flat side of the terminals for the coarse tap selector?
Which shape is the flat side of the terminals for the coarse tap selector?
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What is necessary for connecting tap leads to the terminals of the tap selector size E?
What is necessary for connecting tap leads to the terminals of the tap selector size E?
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What is the procedure for disassembly when using the tap selector terminals?
What is the procedure for disassembly when using the tap selector terminals?
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What is the contact designation for fine tap selector terminals of tap selector bar 'K'?
What is the contact designation for fine tap selector terminals of tap selector bar 'K'?
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How many contacts per plane can the fine tap selector terminals accommodate?
How many contacts per plane can the fine tap selector terminals accommodate?
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What type of screws are required to attach lead ends to the terminal?
What type of screws are required to attach lead ends to the terminal?
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What tools are utilized for attaching lead ends to terminals after performing a soldered connection?
What tools are utilized for attaching lead ends to terminals after performing a soldered connection?
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What will be supplied on request for terminals marked K?
What will be supplied on request for terminals marked K?
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What must be ensured about the rubber gasket during the installation process?
What must be ensured about the rubber gasket during the installation process?
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Which tool is required to equally fasten the 24 screws M10?
Which tool is required to equally fasten the 24 screws M10?
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What is the maximum torque for securing the 14 nuts M8?
What is the maximum torque for securing the 14 nuts M8?
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How should the tap leads be assembled for proper connection?
How should the tap leads be assembled for proper connection?
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Which of the following is NOT a suggested action regarding the O-rings?
Which of the following is NOT a suggested action regarding the O-rings?
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What is the purpose of shaping lead ends into expansion loops?
What is the purpose of shaping lead ends into expansion loops?
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What must be checked for sufficient clearance in the assembly?
What must be checked for sufficient clearance in the assembly?
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Which component's mounting position is critical for proper operation of the tap changer?
Which component's mounting position is critical for proper operation of the tap changer?
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The contact designation for fine tap selector terminals of tap selector bar 'K' is the same as that for coarse tap selectors.
The contact designation for fine tap selector terminals of tap selector bar 'K' is the same as that for coarse tap selectors.
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Transformer manufacturers typically recommend that protective relays should not be mounted close to the tap changer head.
Transformer manufacturers typically recommend that protective relays should not be mounted close to the tap changer head.
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The maximum torque setting for securing the cover bolts M10 on the tap changer is 30 Nm.
The maximum torque setting for securing the cover bolts M10 on the tap changer is 30 Nm.
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The shape of lead ends into expansion loops is critical for preventing electrical shorts.
The shape of lead ends into expansion loops is critical for preventing electrical shorts.
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Rubber gaskets are considered irrelevant during the installation process of transformers.
Rubber gaskets are considered irrelevant during the installation process of transformers.
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To connect tap leads to the terminals of the tap selector size E, no specific tools are required.
To connect tap leads to the terminals of the tap selector size E, no specific tools are required.
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The tap selector terminals designated with code 893 829:4E are associated with tap selector size E.
The tap selector terminals designated with code 893 829:4E are associated with tap selector size E.
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The tap selector can accommodate a maximum of 20 contacts per plane.
The tap selector can accommodate a maximum of 20 contacts per plane.
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Rubber gaskets are not critical during the installation of tap selector terminals.
Rubber gaskets are not critical during the installation of tap selector terminals.
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The variant with screening caps offers enhanced protection against electromagnetic interference.
The variant with screening caps offers enhanced protection against electromagnetic interference.
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Terminal 'K' is specifically designated for fine tap selector connections.
Terminal 'K' is specifically designated for fine tap selector connections.
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The maximum torque setting for tightening cover bolts M10 on the tap changer is 45 Nm.
The maximum torque setting for tightening cover bolts M10 on the tap changer is 45 Nm.
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Lead ends should be shaped into expansion loops for improved electrical contact.
Lead ends should be shaped into expansion loops for improved electrical contact.
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When transporting or storing the transformer, oil filling is essential to prevent damage.
When transporting or storing the transformer, oil filling is essential to prevent damage.
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The clearance between the tap changer head and the supporting flange should be between 10 to 30 mm.
The clearance between the tap changer head and the supporting flange should be between 10 to 30 mm.
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It is recommended to use 15 nuts M8 with a maximum torque of 14 Nm for securing the tap changer head.
It is recommended to use 15 nuts M8 with a maximum torque of 14 Nm for securing the tap changer head.
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The bell-type transformer cover must be thoroughly cleaned before installation.
The bell-type transformer cover must be thoroughly cleaned before installation.
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Two adjusting bolts in the supporting flange of the diverter switch oil compartment help check the tap changer head's mounting position.
Two adjusting bolts in the supporting flange of the diverter switch oil compartment help check the tap changer head's mounting position.
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Before mounting, no specific gasket is required for the mounting flange of the tap changer head.
Before mounting, no specific gasket is required for the mounting flange of the tap changer head.
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The tap changer must be elevated to the oil compartment for the bell-type transformer cover to be properly mounted.
The tap changer must be elevated to the oil compartment for the bell-type transformer cover to be properly mounted.
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After lifting the tap changer using the leveling traverse, it is critical to ensure the studs slide easily through the fixing holes.
After lifting the tap changer using the leveling traverse, it is critical to ensure the studs slide easily through the fixing holes.
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Lifting the tap changer should be performed with a torque wrench size 16.
Lifting the tap changer should be performed with a torque wrench size 16.
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Paper insulation is recommended for the installation of tap selector terminals.
Paper insulation is recommended for the installation of tap selector terminals.
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The tap selector size E allows for a connection of tap leads with dimensions of M12x50.
The tap selector size E allows for a connection of tap leads with dimensions of M12x50.
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The on-load tap changer type T has a specific manual for troubleshooting.
The on-load tap changer type T has a specific manual for troubleshooting.
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A hex head screw is not included as part of the delivery for mounting the tap selector terminals.
A hex head screw is not included as part of the delivery for mounting the tap selector terminals.
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The tap selector terminal layout generally varies by manufacturer.
The tap selector terminal layout generally varies by manufacturer.
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A fine tap selector terminal must always be connected to the terminal marked as negative.
A fine tap selector terminal must always be connected to the terminal marked as negative.
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The hex nut is a critical component provided for securing tap leads.
The hex nut is a critical component provided for securing tap leads.
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Soldering connectors are used exclusively for large tap selector terminals.
Soldering connectors are used exclusively for large tap selector terminals.
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The tap selector terminals have a uniform size across all models.
The tap selector terminals have a uniform size across all models.
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It is necessary to prepare the lead ends into expansion loops for efficient functioning of the tap selector.
It is necessary to prepare the lead ends into expansion loops for efficient functioning of the tap selector.
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The tap changer head has a bleeder screw located at position 29b.
The tap changer head has a bleeder screw located at position 29b.
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A through-hole with a diameter of 15mm is used for the drive shaft of the position indicator.
A through-hole with a diameter of 15mm is used for the drive shaft of the position indicator.
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The suction pipe in the configuration is indicated as pipe connection P.
The suction pipe in the configuration is indicated as pipe connection P.
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The mounting flange on the transformer cover is associated with dimensions labeled T1001C/D.
The mounting flange on the transformer cover is associated with dimensions labeled T1001C/D.
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The terminal for the diverter switch oil compartment is identified by the number 36.
The terminal for the diverter switch oil compartment is identified by the number 36.
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The position indicator is located at the take-off terminal labeled T1502.
The position indicator is located at the take-off terminal labeled T1502.
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The bottom of the oil compartment features a spacer marked with the number 32b.
The bottom of the oil compartment features a spacer marked with the number 32b.
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The thickness of the terminal cover is classified as 76mm.
The thickness of the terminal cover is classified as 76mm.
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The tap changer takes a terminal with a specification of TIX 600 as neutral.
The tap changer takes a terminal with a specification of TIX 600 as neutral.
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The component referred to as 'grading ring' is marked with the designation R I N G I W150.
The component referred to as 'grading ring' is marked with the designation R I N G I W150.
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Study Notes
Assembly Process
- Attach clip to the shaft end and ensure the rubber gasket is properly positioned in the cover.
- Reinstall the suction pipe and secure 24 M10 screws with a wrench size 17, applying a maximum torque of 34 Nm.
O-Rings and Diverter Switch
- Grease O-rings lightly before installation.
- Reinstall the diverter switch unit, ensuring the supporting plate is properly positioned and secured with 14 M8 nuts using a wrench size 13 and a max torque of 14 Nm.
Connection of Tap Winding Tap Changer
- Connect tap winding to the tap changer following the provided wiring diagram, ensuring all connections are secure.
- Tap leads must be assembled to avoid tension; expansion loops may be necessary for shaping lead ends.
Clearance Requirements
- Proper placement of tap leads near the change-over selector is crucial for preventing blockages of moving parts.
- Terminal configurations include vertical flat sides for certain connections and horizontal sides for others.
Soldering Connectors for Tap Selector T 1000
- Tap leads for size E tap selector can only be connected via soldering connectors, screws, and nuts supplied with the equipment.
- Soldering connectors are pre-attached but may require unscrewing and detaching before soldering.
Disassembly Instructions
- Use provided handles to withdraw screening electrodes and unscrew the two recess head screws.
- Remove self-locking nuts and soldering connectors to perform soldered connections.
- Reattach lead ends securely with screws and nuts, ensuring a proper snap-in fit for screening electrodes.
Filling Processes and Maintenance
- Fill the transformer and tap changer with oil under vacuum to ensure proper operation.
- Close the kerosene drain plug after the drying process in an autoclave to maintain integrity.
Protective Relay RS 2001 Installation
- Mount the protective relay as close as possible to the tap changer head in a horizontal position, with serial numbers matching for identification.
- Follow specific Operating Instructions No. 59 for RS 2001 installation.
Safety and Operational Checks
- Conduct checks to ensure no damage to the transformer and tap changer before reconnection after maintenance.
- Gas accumulation under the tap changer head cover can lead to oil displacement, thus requiring proper monitoring before returning to service.
Long-Term Standby Procedures
- For extended standby, apply nitrogen sealing to preserve the interior of the tap changer and protect against oil loss or degradation.
- Connect the motor drive unit heater to power during prolonged inactivity for optimal maintenance.
Tap Changer Installation
- Ensure the tap changer is positioned correctly to provide safe operation after mounting.
- The bell-type transformer cover needs to be set onto the oil compartment before elevating the tap changer to its final position.
- Clean sealing surfaces of the oil compartment and cover to ensure secure mounting.
- Use an oil-resistant gasket when attaching the tap changer head to limit oil leakage.
Mounting Process
- Maintain a clearance of 5 to 20 mm between the tap changer head and supporting flange for final leveling.
- Verify alignment using adjusting bolts on the supporting flange, ensuring it meets assembly marks accurately.
- Secure the tap changer head by threading nuts onto studs that aren't obstructed by the supporting plate.
Torque Specifications
- Apply 17 M8 nuts, with a wrench size of 13 and a maximum torque of 14 Nm to ensure secure fittings.
- Ensure all flange studs move freely through corresponding fixing holes during installation.
Indicators and Connections
- After covering the tap changer, attach the position indication dial for operational clarity.
- Use appropriate connections (e.g., terminal connections for fine tap selectors and change-over selectors) as required by the application.
Manufacturer Support
- For additional support or issues with the tap changer, contact Maschinenfabrik Reinhausen GmbH for technical assistance.
- Contact details include an address in Regensburg, Germany, along with relevant phone and fax numbers.
Technical Drawings and Specifications
- Refer to drawings in the appendix (e.g., figure numbers provided) for detailed visual guidance during installation.
- Note specifications regarding various tap change terminals and types for proper configuration based on transformer type.
Important Components
- Identify and understand components such as the oil compartment, diverter switch, and tap changer head for effective installation and maintenance.
- Regular check of sealing integrity is critical to prevent oil leakage and ensure the longevity of the equipment.
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Description
Test your knowledge on the assembly process for electrical components, including installation techniques and torque specifications. The quiz covers essential steps for working with O-rings, diverter switches, and tap winding tap changers, ensuring proper installation and clearance requirements.
