Measurement Errors
Phase Rotation
Phase rotation, or mismatch of voltage and amperage measurement, is a problem that occurs when the source of the voltage connections on the meter is different from the source of the amperage connections. Example, voltage measurement order is Red | ...
Polarity Issue
When viewing a electricity meters in Raw Data "Before Polarity, CT & VT Ratio" all three phases (Pa | Pb | Pc) should be either negative, or positive. If all 3 are the same, a negative polarity can be set by changing the polarity setting. Data for ...