3 channel volt ammeter

[razsab]

hello , I have a three-phase and neutral 115v 400Hz, I want to make a display that shows the current in the three phases and the tension between 3 phases and neutral one by one and all in the same show display






and thanks

 

[internetuser2k12]

Have you scaled down your voltage to 0 to 5v so that it can be given to mcu?
Have you scaled down and converted your current to 0 to 5v so that it can be given to mcu?

If yes. The code can be written.

 

[razsab]

for the current I used current transformer and transformer used may also

i want the schéma isis and the code

 

[internetuser2k12]

I asked how are you scaling your voltage and current?

 

[razsab]

I want to calculate the voltage between phase and neutral V1
and for the second phase and neutral V2
and for the third phase and neutral V3

for the current i want I1 in the first phase
and I2 for the second
and I3 for the third phase

watch the picture

 

[internetuser2k12]

How are you interfacing your Potential Transformer's and Current transformer's output to microcontroller?

 

[razsab]

i want do that too

 

[internetuser2k12]

Then do it and post the circuit. What will be the range of AC you will be measuring? Like AC Volts 0 to 140v and AC Current 0-20Amps.

 

[razsab]

oki ,

AC Volts 0 to 200v between phase and neutral


AC Current 0 to 20 Amps in phase

 

[internetuser2k12]

I will assume that your ac 0v is dc 0v and ac 200v is dc 5v.
I will assume that your ac current 0 amps is dc 0v and ac 20 amps is dc 5v.

According to that I will write the code but in mikeoC Compiler.

 

[razsab]

okii thanks

 

[internetuser2k12]

You can also use the mikroC PIC code available here https://www.edaboard.com/threads/254723/