Amprobe DMIII-Multitest Power-Quality-Recorder Manuale Utente Scaricare il pdf (Pagina 54)

AMPROBE

DMIII MULTITEST

EN-52

7.5. "CURRENT" FUNCTION

This function permits to display in real time the RMS value of AC/DC currents, the peak

and Thdl value of the 3 phase currents, the waveform and the harmonic spectrum of the 3

phase currents.

7.5.1. Symbols

The CURRENT position has three working modes:

 METER

 WAVE

 HARM

These modes will be described in detail in the next paragraphs.

The symbols used are described below:

Symbol

Description

I1, I2, I3

RMS value of current (phase 1, phase 2, phase 3 respectively)

RMS value of current on neutral

Ipk1, Ipk2, Ipk3

Peak value of current (phase 1, phase 2, phase 3 respectively)

h01  h49

Harmonic 01  harmonic 49

ThdI

Total harmonic distortion factor of current

freq

Network frequency

Tab. 2: Symbols used in the CURRENT function

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 103 104

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Amprobe DMIII-Multitest Power-Quality-Recorder Manuale Utente Pagina 54