Gossen Metrawatt M817S Mains-analysis device, Mains analyser M817S Hoja De Datos

3-20

Phasor Rotation

Graphic illustration in the form of rotating phasors relative to the sine wave graph of a 

four wire wye circuit is available by pressing the Demo button on the Phasor screen 

(see page 3-19). The Demo button will be replaced by Start/Stop once phasor rotation 

has been viewed. Press Start to replay animated phasor rotation. Users can choose to 

Stop the phasor demo rotation at any time.

Phasor vectors are displayed using a clockwise rotation from the zero degrees 

reference. Animated phasor demo for Resistive, Inductive and Capacitive loads is 

available for viewing.

The following diagrams describe the positive phase rotation of voltage and current 

phasors (for Resistive, Inductive and Capacitive loads) for a three phase, three wire 

wye connection. An arrow head on the line indicates direction pointing toward the load.

Three phase vectors are 

displayed as three lines, 120 

degrees apart in a Resistive load

Display parameter/channel 

selection (p. 3-22)

Start/Stop demo plot 

waveforms as rotate 

phasors; press any time

Switch phasor demo rotation between 

Resistive, Inductive and Capacitive load 

effects; press any time (p. 3-21)

Return to 

Phasor screen

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