Appendix A Technical Specifications
PM135 Powermeter Series 147
A.12 Measurement Specifications
Table 21: Measurement Specifications Parameters
120VxPT @ 120V
400VxPT @ 690V
0 to 1,150,000 V
Starting voltage
1.5-5.0% FS (selectable)
For In = 5A
1% to 200% FS
For In = 1A
5% to 200% FS
0 to 50,000 A
Starting current 0.1% FS
0.36PTCT @ 120V
1.2PTCT @ 690V
-10,000,000 kW to
+10,000,000 kW
0.36PTCT@ 120V
1.2PTCT @ 690V
-10,000,000 kvar to
+10,000,000 kvar
0.36PTCT @ 120V
1.2PTCT @ 690V
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
)
THD 1%,
V 10% FSV and
V
L-N
> 25V,
I 10% FSI
Total Demand
Distortion, TDD,
%
TDD 1%,
I 10% FSI,
V
L-N
> 25V
Active energy
Import & Export
Class 0.5S under conditions as per
IEC 62053-22:2003
Reactive energy
Import & Export
Class 0.5S under conditions as per
IEC 62053-22:2003, |PF| 0.9
Class 0.5S under conditions as per
IEC 62053-22:2003
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.
@ 80% to 120% of voltage FS, 1% to 200% of current FS and frequency 50/60 Hz