Filter
Top Products
PowerLogic™ PM5500 series user manual Chapter 16—Power, energy and power factor
HRB1684301-01 139
Power factor register format
Each power factor value (PF value) occupies one floating point register for power factor
(PF register). The meter performs a simple algorithm to the PF value then stores it in
the PF register. The meter and software interpret the PF register for all reporting or data
entry fields according to the following diagram:
How PF value is stored in the PF register
Quadrant 3 Quadrant 2 Quadrant 1 Quadrant 4
0to-1 -1to0 0to+1 +1to0
0
-1 0
+1
0
PF
PF register
-2
-1 0
+1
+2
0
-1
0
+1
Quadrant 3
-1 PF 0≤≤
Quadrant 4
0PF1≤≤
Quadrant 1
0PF≤ 1≤
Quadrant 2
-1 PF 0≤≤
-0.5 +0.5
+0.5-0.5
-2 to -1 -1 to 0
0to+1
+1 to +2
-2 +2
-1
00
+1
Quadrant 3
-2 PF register -1≤≤
Quadrant 4
2 PF register 1≤≤
Quadrant 1
0 PF register 1≤≤
Quadrant 2
-1 PF register 0≤≤
-0.5
+0.5
+1.5-1.5
Quadrant 2
-1 ≤ PF ≤ 0
Quadrant 3
-1 ≤ PF ≤ 0
Quadrant 1
0 ≤ PF ≤ +1
PF value
Quadrant 3
0 to -1
Quadrant 4
0 ≤ PF ≤ +1
PF register
-1 to 0
0 to +1
+1 to 0
Quadrant 2
Quadrant 1
Quadrant 4
-2 to -1
-1 to 0 0 to +1
+1 to +2
Quadrant 2
-1 ≤ PF register ≤ 0
Quadrant 1
0 ≤ PF register ≤ +1
Quadrant 3
-2 ≤ PF register ≤ -1
Quadrant 4
+1 ≤ PF register ≤ +2