61
4.2.13 Active AC power measurements
Measurement
range (2) (4)
5 W to
9999 W
10,00 kW
to
99,99 kW
100,0 kW to
999,9 kW
1000 kW (1)
Specified
measurement
range
1 to 100% of the
measurement
range
0 to 100% of the measurement range
Uncertainties
(3) (7)
± (2% R +10 pt)
± (2% R +3 pt)
Resolution
1W
10W
100W
1000W
Note (1) - Bandwidth in AC in voltage = 3 kHz, in current = 2 kHz
Notes (2) and (3) of the previous § apply.
Note (4) - Any power measured less than 5W causes the display of dashes "---
-"
Note 5 - The active powers are positive for power consumed and negative for
power generated.
Note 6 - The signs of the active and reactive powers and power factor are defined
by the four-quadrant rule below:
- The diagram below sums up the signs of the power as a function of the
phase angle between U and I:
Quadrant 1 : Active power P
sign + (power consumed)
Quadrant 2 : Active power P
sign - (power generated)
Quadrant 3 : Active power P
sign - (power generated)
Quadrant 4 : Active power P
sign + (power consumed)
Summary of Contents for F407
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