Question: A current transformer has a rating of 100/5 A. its magnetizing and loss components of the exciting current are 1 A and 0.6 A respectively and secondary winding burden is purely resistive, its transformation ratio at rated current is :
Answer:
MCQ: A current transformer has a rating of 100/5 A. its magnetizing and loss components of the exciting current are 1 A and 0.6 A respectively and secondary winding burden is purely resistive, its transformation ratio at rated current is :
Correct Answer:
A. 20.12
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Related Questions
- 1. A current transformer has a rating of 1000/5 A. its magnetizing current and loss component of exciting current are 10 A and 6 A respectively. The phase angle between secondary winding induced voltage and current is 30°. The phase angle error of the transformer at rated current is :
- 2. The errors in current transformer can be reduced by designing them with :
- 3. The current in the primary winding of a current transformer depends upon :
- 4. Turns compensation is used in current transformer primarily for reduction of :
- 5. A short-Circuiting link is provided on the secondary side of a current transformer because :
- 6. When the secondary winding of a current transformer is open circuited with the primary winding energized
- 7. Clamps on meters are used because
- 8. When the secondary winding of a potential transformer is suddenly open circuited with primary winding excited :
- 9. The ratio and phase angle errors in potential transformers may be reduced by
- 10. Capacitive potential transformer are used
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