Questions and Answers
What is the primary purpose of the TAPMOTION® ED motor-drive unit?
Which condition must be met to switch the on-load tap-changer from the Y connection to the delta connection?
What happens if the motor-drive unit attempts to move to an impermissible tap position while the circuit breaker is on?
What component ensures that the transformer circuit breaker can only be engaged in a permitted position?
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What should be regularly tested to ensure the safe operation of the motor-drive unit?
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Why is it crucial for the transformer to be de-energized during the function test?
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In which direction should the function test be carried out for the motor-drive unit?
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What does the term 'shaded area of the tap-change indicator' refer to?
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The TAPMOTION® ED motor-drive unit can operate safely without a monitoring system.
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The locking mechanism of the motor-drive unit can be engaged when the circuit breaker is switched on.
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When the motor-drive unit is in a permitted position, the transformer circuit breaker can be engaged.
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The star-delta change-over operation is used for adjusting the operating position of on-load tap-changers in non-regulating transformers.
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If the motor-drive unit moves to an impermissible tap position, it will not affect the circuit breaker.
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The operation of the TAPMOTION® ED unit is only meant for authorized personnel who are specially trained.
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The synchronous control unit is irrelevant to the operation of the motor-drive unit.
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To ensure the locking mechanism's proper functioning, a test should be conducted while the transformer is energized.
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Study Notes
Motor-Drive Unit TAPMOTION® ED Overview
- Designed for star-delta change-over operation in regulating transformers.
- Incorporates a monitoring system and locking mechanisms for enhanced safety.
- Only intended for use by specially trained and authorized personnel.
Safety Features
- Complies with DIN VDE 31000 standards for safe operation.
- On-load tap-changer can only switch between Y and delta connections when the circuit breaker is off.
- Raises and lowers tap-change operations are locked when the circuit breaker is on.
- If the motor-drive shifts to an incorrect tap position with the circuit breaker on, it will trip the circuit breaker.
Motor-Drive Unit Functionality
- Features a synchronism control unit for added safety during operation.
- Engagement of the transformer circuit breaker is conditional on the motor-drive unit being in a permitted tap position.
- The synchronization control must indicate no errors for engagement to occur.
Function Test Guidelines
- Regular testing of the locking mechanism is essential during commissioning and periodic maintenance.
- Test must be conducted in both switching directions: star to delta and delta to star.
- CAUTION: Transformer must be de-energized before testing to prevent electrical hazards.
Motor-Drive Unit TAPMOTION® ED Overview
- Designed for star-delta change-over operation in regulating transformers.
- Incorporates a monitoring system and locking mechanisms for enhanced safety.
- Only intended for use by specially trained and authorized personnel.
Safety Features
- Complies with DIN VDE 31000 standards for safe operation.
- On-load tap-changer can only switch between Y and delta connections when the circuit breaker is off.
- Raises and lowers tap-change operations are locked when the circuit breaker is on.
- If the motor-drive shifts to an incorrect tap position with the circuit breaker on, it will trip the circuit breaker.
Motor-Drive Unit Functionality
- Features a synchronism control unit for added safety during operation.
- Engagement of the transformer circuit breaker is conditional on the motor-drive unit being in a permitted tap position.
- The synchronization control must indicate no errors for engagement to occur.
Function Test Guidelines
- Regular testing of the locking mechanism is essential during commissioning and periodic maintenance.
- Test must be conducted in both switching directions: star to delta and delta to star.
- CAUTION: Transformer must be de-energized before testing to prevent electrical hazards.
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Description
This quiz covers the essential features and safety mechanisms of the Motor-Drive Unit TAPMOTION® ED. It delves into its compliance with safety standards, functionality, and guidelines for safe operation. Ideal for personnel trained to handle such equipment, the quiz assesses knowledge in transformer regulation and circuit safety.
