Hi i have 2 different power sources so 2 different ac waves, as far as i understand i can't have 2 ac-ac adapters...
So can i "select" to use the ac-ac adapter for one CT and fix the other CT as no ac-ac adapter mode ?
thanks
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Using more than one AC-AC adapterSubmitted by fca on Wed, 05/02/2014 - 00:18Hi i have 2 different power sources so 2 different ac waves, as far as i understand i can't have 2 ac-ac adapters... So can i "select" to use the ac-ac adapter for one CT and fix the other CT as no ac-ac adapter mode ?
thanks
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Re: Using more than one AC-AC adapter
Are these two power sources connected in any way? are they on the same phase? The firmware could be modified to do what you want.
Take a look at the examples:
emonTxFirmware > emontx v2 > Guide > 1_SingleCT
and
emonTxFirmware > emontx v2 > Guide > c_ACVoltage
you would need to merge these two, something like this:
#include "EmonLib.h" // Include Emon Library EnergyMonitor ct1,ct2; // Create an instance void setup() { Serial.begin(9600); ct1.voltageTX(228.268, 1.7); // Calibration, phase_shift ct1.currentTX(1, 111.1); // CT channel, calibration. ct2.currentTX(1, 111.1); // CT channel, calibration. } void loop() { ct1.calcVI(20,2000); // Calculate all. No.of half wavelengths (crossings), time-out ct1.serialprint(); // Print out all variables double Irms = ct2.calcIrms(1480); // Calculate RMS current (1480: no. of samples) Serial.println(Irms*230); // Print power Irms x 230Volts (assumed) }Re: Using more than one AC-AC adapter
Hi and thanks...
no the power sources are complete isolate one from the public grid other from my offgrid ( hybrid) inverter and third one from diesel generator (near future )
sobin your example ct1 as no ac ac adapter and ct2 is using the ac ac adapter reading ?