Reddit reviews Current Transformer, DROK 100A 100mA AC Current Sensor, Split Core Amp Transformer Sensing Relay, Mini Clip-on Easy to Install CT Without Power Off
We found 2 Reddit comments about Current Transformer, DROK 100A 100mA AC Current Sensor, Split Core Amp Transformer Sensing Relay, Mini Clip-on Easy to Install CT Without Power Off. Here are the top ones, ranked by their Reddit score.
This is a mini split base current transformer; it’s the smallest one compared to the similar products (output 100MA).The diameter of inner hole is 16mm, the accuracy is ≤0.5 grade,Our ac sensing relay using snap joint structure, it can be fixed to the cable directly through nylon ties.The amp transformer is with Built-in input coil; small and light, easy to install.Fully enclosed CT, good mechanical properties and environmental resistance, strong voltage isolation capability, safety and reliability.
The best kind of sensor would be a current clamp like this one, but I haven't tried it they're a little pricey and you'll have to split the power cable to put it over only only lead (if you put it around the entire cable, the two current fields will cancel out and you'll always read zero).
>AC current transformer
So would i use something like this https://www.amazon.com/Current-Transformer-DROK-Transformers-Sensing/dp/B01LWN37KS? If so what would i connect to the wires? I haven't heard of using that before but my understanding is you run the cable through the inside of the hole. Then it outputs a measurement of how much is running through that cable.
After running the cable through the current transformer and getting the output signal. Would i then run that to 1kohm resistor. Then send that to an arduino?
How would i get the 1000:1 ratio? How do i bias the resistor?