# Reading Current Transformers

**URL:** <https://forums.digi.com/t/reading-current-transformers/9720>\
**Category:** Rabbit\
**Created:** [March 24, 2009, 1:24am UTC](https://forums.digi.com/t/reading-current-transformers/9720 "2009-03-24T01:24:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![isaac1](https://avatars.discourse-cdn.com/v4/letter/i/e79b87/32.png) [@isaac1](https://forums.digi.com/u/isaac1)\
**Post date:** [March 24, 2009, 1:24am UTC](https://forums.digi.com/t/reading-current-transformers/9720/1 "2009-03-24T01:24:20Z")

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I am very new to Rabbit. I have been having a lot of trouble finding a good starting point to learn how to do a lot of things.

I am trying to read the voltage from a current transformer. It is an AC sine wave at around 60Hz, 0-3 volts. I would like to take a few hundred ADC samples at around 10,000 Hz, and then use the data to find the current on the line.

Since there is negative voltage, I know I need to use a differential voltage setup. Can anyone point me in the right direction?