User guide

Appendix A Technical Specifications
146 PM135 Powermeter Series
A.12 Measurement Specifications
Table 21: Measurement Specifications Parameters
Parameter
Full Scale @ Input
Range
Accuracy
Range
%
Reading
% FS
Conditions
Voltage
120VxPT @ 120V
400VxPT @ 690V
0.2
0.02
10% to 120% FS
0 to 1,150,000 V
Starting voltage
1.5-5.0% FS (selectable)
Line current
CT
0.2
0.02
For In = 5A
1% to 200% FS
For In = 1A
5% to 200% FS
0 to 50,000 A
Starting current 0.1% FS
Active power
0.36PTCT @ 120V
1.2PTCT @ 690V
0.3
0.02
|PF|  0.5
1
-10,000,000 kW to
+10,000,000 kW
Reactive power
0.36PTCT@ 120V
1.2PTCT @ 690V
0.3
0.04
|PF|  0.9
1
-10,000,000 kvar to
+10,000,000 kvar
Apparent power
0.36PTCT @ 120V
1.2PTCT @ 690V
0.3
0.02
|PF|  0.5
1
0 to 10,000,000 kVA
Power factor
1.000
0.2
|PF|  0.5,
I  2% FSI
-0.999 to +1.000
Frequency
50 Hz
60 Hz
25 Hz
400 Hz
0.02
0.04
V
L-N
> 25V
15 Hz to 70 Hz
15 Hz to 70 Hz
15 Hz to 70 Hz
320 Hz to 480 Hz
Total Harmonic
Distortion, THD
V (I), %V
f
(%I
f
)
999.9
1.5
0.2
THD  1%,
V  10% FSV and
V
L-N
> 25V,
I  10% FSI
0 to 999.9
Total Demand
Distortion, TDD,
%
100
1.5
TDD  1%,
I  10% FSI,
V
L-N
> 25V
0 to 100
Active energy
Import & Export
Class 0.5S under conditions as per
IEC 62053-22:2003
0 to 999,999,999 kWh
Reactive energy
Import & Export
Class 0.5S under conditions as per
IEC 62053-22:2003, |PF|  0.9
0 to 999,999,999 kvarh
Apparent energy
Class 0.5S under conditions as per
IEC 62053-22:2003
0 to 999,999,999 kVAh
PT - external potential transformer ratio
CT - primary current rating of the external current transformer
FSV - voltage full scale
FSI - current full scale
V
f
- fundamental voltage
I
f
- fundamental current
NOTES
1. Accuracy is expressed as  (percentage of reading +
percentage of full scale)  1 digit. This does not
include inaccuracies introduced by the user's
potential and current transformers. Accuracy
calculated at 1second average.
1
@ 80% to 120% of voltage FS, 1% to 200% of current FS and frequency 50/60 Hz