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CircuitSetup / Split-Single-Phase-Energy-Meter

Split Single-phase Energy Meter
https://www.crowdsupply.com/circuitsetup/split-single-phase-energy-meter
MIT License
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Calibration emonESP from Russia #49

Closed skribbl84 closed 2 years ago

skribbl84 commented 3 years ago

Hi! Two weeks ago I received a CircuitSetup Split Single-phase Energy Meter with two transformers 2x 16 mm round YHDC SCT-016 120 A CT Sensors. I can’t calibrate Energy Meter for a long time. Through a lot of trial and error, I got an approximate tension. In our electrical network, it is 230v. In the emonESP Voltage field, I entered 4540. But I strongly doubt that this is the correct value. I am using a 9v AC transformer. In the field of calibration of transformers CT1 and CT2, I enter 39473. But the power values ​​are not strong. Please tell me how to correctly calculate the data for calibration.

CircuitSetup commented 3 years ago

The calibration procedure for voltage is here: https://github.com/CircuitSetup/Split-Single-Phase-Energy-Meter#voltage-procedure

You will likely see a calibration value for voltage that is double the default, so start with 9080. Also make sure you have the field for frequency set to 50Hz, which is 389.