36
5.8
HARMONICS
Particular reference conditions
- Signal without inter-harmonics whose fundamental is greater than the other harmonic components and the DC
component.
- Min value of the RMS signal 10 V or 10 A
- Fundamental frequency 50 Hz
±
0.05 Hz
- Crest factor of the signal
≤
5
- Operating range :
on AC mode
: harmonics of order 1 to 25
on AC + DC mode : all harmonic orders (H01 to H25) plus the DC component (Hdc)
- Frequency analysis band
: 0 to 25 times the fundamental frequency between 40 and 70 Hz
Measurement range
Total THD and harmonic rate order by order
0.2%...600%
Total DF and distortion factor order by order
0.2%...100%
Accuracy on total THD
1% rdg
±
2 counts
Accuracy on total DF
1% rdg
±
2 counts
Rate > 10% and order < 13 : 5% rdg
±
2 counts
Accuracy order by order in rms value (A or V)
Rate > 10% and order > 13 : 10% rdg
±
2 counts
or as a rate (%) of THD and DF
Rate < 10% and order < 13 : 10% rdg
±
2 counts
(zero corrected on amps)
Rate < 10% and order > 13 : 15% rdg
±
2 counts
5.9
K FACTOR (KF)
Measurement range
KF
1.0…9,9
10.0…30
Accuracy
5% rdg
±
2 counts
10% rdg
±
2 counts
Resolution
0.1
5.10 SINGLE / 3-PHASE POWERS AND ASSOCIATED QUANTITIES
Particular reference conditions
- On DC : AC component < 0.1% of the DC signal
- On AC : Sinusoidal signals : Cos
ϕ
= 1 - Frequency 45...65 Hz
- Measurement range on frequency : 0.5 Hz to 1 kHz (except on reactive power and DPF : 40...70 Hz)
!
On 3-phase, the measurement is only exact for sinusoidal signals.
■
Active power (W)
Measurement range
10...5999 W
6.00...59.99 kW
60.0...599.9 kW
Accuracy
2% rdg
±
2 counts
(with corrected zero)
Resolution
1 W
10 W
100 W
NB : The measurement of active power has a
±
sign.
Above 600 V / 1000 A i.e. 600 kW, the display indicates “OL”.
