ALL ARTICLES CATEGORIZED IN: TAG: INTERACTIVE

All energy meters used for billing purpose have a test output for calibration. This can be flashing diode, a pulse output at the terminal or the mark of a rotating disk. This test output gives us information about the power consumption.

The interactive diagram shows the relationship between the phase angle φ, apparent-, active- and reactive power respective energy in accordance with clauses 12 and 14 of IEC 60375.

Modern reference standards and calibration devices have usually a graphical function to show the relationship between the voltages and the currents.

Generally a harmonic is a integer multiple of the fundamental frequency (nominal fn). When we have a fn of 50 Hz, the 3^rd harmonics is traveling with 150 Hz. We can have harmonics in the voltages and in the currents.