A. 5 A
B. 20 A
C. 50 A
D. 100 A
Answer: A. 5 A
B. 20 A
C. 50 A
D. 100 A
Answer: A. 5 A
Explanation:
- The current Ratio Also known as the Turns Ratio (in general terms) is the ratio of the primary current to the secondary current.
- This value is obviously equal to the ratio of number of turns in the primary and secondary coils. The current ratio of a CT is usually high. The secondary current ratings are typically 5A, 1A and 0.1A.
- The corresponding current primary ratings vary from 10A to 3000A or more.
- However, it is important to note that 100/5 rating and 20/1 rating of Current Transformers are not the same, even though their current ratios are equal.
- These rating numbers actually represent the absolute values of “input/output current rating”.