Question:medium

A current transformer has ratio 500/5. If the burden is 2 VA at rated secondary current, the corresponding burden impedance is

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Always use the rated secondary current (the second number in the CT ratio, which is almost always 5 A or 1 A) to calculate secondary burden parameters. Using the formula \(Z = \frac{\text{VA}}{I_s^2}\) gives \(\frac{2}{25} = 0.08\ \Omega\).

Updated On: Jun 25, 2026

\(0.08\ \Omega\)
\(0.4\ \Omega\)
\(0.8\ \Omega\)
\(2.0\ \Omega\)

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The Correct Option is A

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A current transformer has ratio 500/5. If the burden is 2 VA at rated secondary current, the corresponding burden impedance is

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The Correct Option is A

Solution and Explanation

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