My plan is to make a CT meter that requires using a CT to measure AC Voltages and frequency of the main supply..
I know there are couple of tutorials available that fits the purpose but I need a response time of max 50ms. i.e. the CT meter should be capable of taking the sample every 50ms.
Does it require any special CT? would a mcu based CT meter capable to take a sample every 50ms.
Any suggestion on CTs and other parts can help.
that makes sense. Well than it depends on the inductivity of the coil.
As a very rough estimation out of my stomac I estimate at 50 ms inductivity is not the main factor
it just depends on the sampling-speed of your ADC. So you should use something with SPI-interface or high-speed internal ADCs like a teensy 4.0
the CT meter should be capable of taking the sample every 50ms.
The CT sensor output is used to measure current only, and is instantaneous. The Arduino sample frequency is something you choose. Excellent tutorials for Arduino here.
I am planning to use sct-013 for current and zmpt101b module for voltage and frequency monitoring.. not sure if it can deliver the current ratings every 50ms..