Calculation Of Diff. Phase; Trailing Vline Phase; Leading Vline Phase - GE MiCOM P40 Agile Technical Manual

P44x/EN AP/Hb6
(AP) 5-146
Figure 105: Calculation of Diff. phase
Phase shift = (∆T/ T) *360
∆T = Ta + (x1-y2)
A phase shift calculation requires a change of sign of both signals.
All the angles will be between 0° and 180°. For a phase shift of 245°,
(360 –245) = 115° will be displayed

Trailing VLine phase

VLine
x
1
y
1

Leading VLine phase

VBus
VLine
y
2
Ta
D T
x
1
MiCOM P40 Agile P442, P444
VBus
Ta
D T
Application Notes
x
2
y
2
y
3
x
2
P0494ENa