Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Synchroscope is used to check _________.a)Fre...
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Synchroscope is used to check _________.
- a)Frequency difference
- b)Phase angle difference.
- c)Phase sequence
- d)e.c. Phase sequence
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Synchroscope is used to check _________.a)Frequency differenceb)Phase ...
Concept:
- Synchroscopes are instruments that show the relative frequency (speed) difference and the phase angle between the machine to be synchronized and the system voltage.
- The synchroscope works based on AC motor in principle. It has two poles connected across any two phases (say red and yellow) of the incoming machine. The armature windings are supplied from the similar two phases (red and yellow) in the switch board bus - bars.
- Synchronization of alternator means connecting an alternator into the grid in parallel with many other alternators, that is in a live system of constant voltage and constant frequency.
- Before connecting an alternator into the grid, the following conditions must be satisfied:
- Equal voltage: The terminal voltage of incoming alternator must be equal to the bus-bar voltage.
- Same frequency: The frequency of generated voltage must be equal to the frequency of the bus-bar voltage.
- Phase sequence: The phase sequence of the three phases of alternator must be similar to that of the grid or busbars. Phase angle: The phase angle between the generated voltage and the voltage of the grid must be zero.
- The first condition of voltage equality can be satisfied by a voltmeter. To satisfy the conditions of equal frequency and identical phases, one of the following two methods can be used: Synchronization using incandescent lamp Synchronization using synchroscope
Most Upvoted Answer
Synchroscope is used to check _________.a)Frequency differenceb)Phase ...
Frequency difference
- A synchroscope is used to check the frequency difference between two electrical systems.
- It is essential for ensuring that the systems are synchronized and operating at the same frequency.
- If there is a significant frequency difference, it can lead to issues such as power loss or damage to equipment.
Phase angle difference
- While a synchroscope primarily checks for frequency difference, it can also indicate any phase angle difference between systems.
- Phase angle difference can cause power imbalances and affect the stability of the electrical network.
- By using a synchroscope, operators can detect and correct phase angle differences to maintain system reliability.
Phase sequence
- Although not the primary function of a synchroscope, it can also be used to verify the phase sequence of electrical systems.
- Phase sequence is crucial for the proper operation of motors and other equipment.
- Detecting incorrect phase sequence early on can prevent damage to machinery and ensure efficient operation.
In conclusion, a synchroscope is a valuable tool in the electrical industry for checking frequency difference, phase angle difference, and phase sequence to maintain system stability and reliability.
- A synchroscope is used to check the frequency difference between two electrical systems.
- It is essential for ensuring that the systems are synchronized and operating at the same frequency.
- If there is a significant frequency difference, it can lead to issues such as power loss or damage to equipment.
Phase angle difference
- While a synchroscope primarily checks for frequency difference, it can also indicate any phase angle difference between systems.
- Phase angle difference can cause power imbalances and affect the stability of the electrical network.
- By using a synchroscope, operators can detect and correct phase angle differences to maintain system reliability.
Phase sequence
- Although not the primary function of a synchroscope, it can also be used to verify the phase sequence of electrical systems.
- Phase sequence is crucial for the proper operation of motors and other equipment.
- Detecting incorrect phase sequence early on can prevent damage to machinery and ensure efficient operation.
In conclusion, a synchroscope is a valuable tool in the electrical industry for checking frequency difference, phase angle difference, and phase sequence to maintain system stability and reliability.
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Synchroscope is used to check _________.a)Frequency differenceb)Phase angle difference.c)Phase sequenced)e.c. Phase sequenceCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Synchroscope is used to check _________.a)Frequency differenceb)Phase angle difference.c)Phase sequenced)e.c. Phase sequenceCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Synchroscope is used to check _________.a)Frequency differenceb)Phase angle difference.c)Phase sequenced)e.c. Phase sequenceCorrect answer is option 'A'. Can you explain this answer?.
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