How to calculate Burden Resistor ??

[andybarrett1]

Thank you

The sensors all ready exist.. I am attempting to use the output for my purpose.

But will prob look at those in future.

Thank you again

[amgen]

From my experience working with CT's, putting a higher value resister across ct secondary will lower the secondary current by some factor but the voltage still has some relation to the primary current...... that's why a 100 ohm or 1000 ohm resistor will not create that much heat. My guess is that a 100 ohm load resister will probably drop the secondary current to less than 1 amp with 100 amp thru CT.

don