Feb 1, 2026 · Question: A CT with a current ratio of 500:1 is used in a metering circuit. If the current indicated on the met is 67mA, the current through the primary circuit conductor is amps. a. 67 b. 1.34 …

Oct 29, 2024 · The current through the primary circuit conductor is 33.5 A, calculated from the secondary current of 67 mA using the CT ratio of 500:1. The correct answer is option C.

Feb 3, 2025 · The CT ratio should be chosen based on the maximum expected primary current and the required secondary current (usually 5A or 1A for standard metering and relays).

A CT with a current ratio of 500:1 is used in a metering circuit. If the current indicated on the meter is 67mA , the current through the primary circuit conductor is amps. Select one: a. 1.34 b. 67 c. 33.5 d. …

First we need to remember that the ratio of 200:5 can also be written as 200/5 or 200 divided by 5. This is the first calculation that we need to do as this will give us the multiplier. So 200/5 = 40. Thus, our …

Oct 3, 2024 · A CT ratio indicates the relationship between the primary current to the secondary current. For example, a 100:5 ratio means 100 amps on the primary results in 5 amps on the secondary.

The primary conductor creates alternating magnetic flux in the core, inducing a proportional current in the secondary winding when it is closed through burden devices.

Aug 12, 2024 · Enter the primary and secondary currents of the transformer into the calculator to determine the CT ratio. This calculator can also evaluate the primary or secondary current given the …

Just enter the primary current and turn ratio, then press the calculate button to get the exact secondary current. Also, you can get a CT ratio along with the burden resistance value from this calculator.

Oct 30, 2023 · The current through the primary circuit conductor, when using a 500:1 current transformer with a meter reading of 67 mA, is calculated to be 33.5 A. This is found by converting the meter …