Active and Reactive Power Quadrant Definitions
http://www.elster.com.tr/downloads/ESC_A1XXX_OC_TR_01-00.pdf
V = 100
I = 50
150
100
50
0
-50
-100
-150
0
20
40
60
80
100
120
20
40
60
80
100
120
140
Pure Resistive Case
Theta = 0
Active Power = 5000
Reactive Power = 0
150
100
50
0
-50
-100
-150
0
Quadrant 1
Theta = 45
Active Power = 3535.3
Reactive Power = 3535.3
Active Power - import
Reactive Power - import
inductive
140
150
100
50
0
-50
-100
-150
0
20
40
60
80
60
80
100
120
140
Pure Inductive Case
Theta = 90
Active Power = 0
Reactive Power = 5000
150
100
50
0
-50
-100
-150
Quadrant 2
Theta =145
Active Power = -3535.5
Reactive Power = 3535.5
Active Power - export
Reactive Power - import
capacitive
0
20
40
100
120
140
150
100
50
0
-50
-100
-150
0
20
40
60
80
60
80
100
120
140
Theta =180
Active Power = -5000
Reactive Power = 0
150
100
50
0
-50
-100
-150
0
Quadrant 3
Theta =225
Active Power = -3535.5
Reactive Power = -3535.5
Active Power - export
Reactive Power - export
inductive
20
40
100
120
140
150
100
50
0
-50
-100
-150
0
20
40
60
80
100
40
60
80
100
120
140
Pure Capacitive
Theta =270
Active Power = 0
Reactive Power = -5000
150
100
50
0
-50
-100
-150
0
Quadrant 4
Theta =315
Active Power = 3535.5
Reactive Power = -3535.5
Active Power - import
Reactive Power - export
capacitive
20
120
140