E-Mon E-PS-S-HV-RTU - Manual (Page 39)

Appendix: Technical Specifications 33
Measurement Specifications
Accuracy Parameter Full Scale @
Input Range
%
Reading
% FS Conditions
Range
Voltage V1-V3
(L-n) 277 x PT ratio
@ 277V ±0.05 ±0.1 1% up to 120% 0 up to 999,000 V
Voltage V1-V3
(L-n) 120 x PT ratio @
120V ±0.05 ±0.1 1% up to 140% 0 up to 999,000 V
Voltage V1-V3
(L-n) 69 x PT ratio ±0.05
±0.1 1% up to 140% 0 up to 999,000 V
Line current I1- I3 CT primary current ±0.06 ±0.06 1% up to 200%In 0 up to 20,000 A
Line current I1- I3 CT primary current ±0.1 ±0.06 200% up to 400% 0 up to 20,000 A
Line Fault current
I1- I3 CT primary current ±1.0 - 400%- 1000% In 0 up to 100,000 A
Active power 3xV FS×CT/1000 ±0.2 ±0.02 |PF| ≥ 0.5 * -10,000,000 kW to
+10,000,000 kW
Reactive power 3xV FS×CT/1000 ±0.3 ±0.04 |PF| ≤ 0.9 * -10,000,000 kvar to
+10,000,000 kvar
Apparent power 3xV FS×CT/1000 ±0.2 ±0.02 |PF| ≥ 0.5 * 0 to 10,000,000 kVA
Power factor 1.000 ±0.2 |PF| ≥ 0.5, I ≥ 2% FSI -0.999 to +1.000
50 Hz - ±0.02 40-65 Hz 40.00 up to 64.99 Hz Frequency
60 Hz - ±0.02 45- 70 Hz 45.00 up to 69.99 Hz
Total Harmonic
Distortion, THD
V (I), %Vf (%If) 999.9 ±1.5 ±0.1 THD ≥ 1%,
V (I) ≥ 10% FSV (FSI) 0 to 999.9
Total Demand
Distortion, TDD, % 100 ±1.5 TDD ≥ 1%,
I ≥ 10% FSI 0 to 100
Active energy
Import & Export ANSI C12.20, Class 10/20, Acc. Class 0.2 0 to 999,999.999 MWh
Reactive energy
Import & Export Class 0.5Sunder conditions as per IEC 62053-
23:2003 0 to 999,999.999 Mvarh
Apparent energy Class 0.2 under conditions as per IEC 62053-
22:2003 0 to 999,999.999 MVAh
Symmetrical
components Voltage FS
Current FS
Current FS ±1.0
±1.0
±3.0 10% - 120% FS
10% - 400% FS
200% - 1000%FS
Phasor angles ±1 degree
* @ 80% to 120% of voltage FS, 2% to 200% of current FS, and frequency 50/60 Hz
PT - external potential transformer ratio
CT - primary current rating of external current transformer
FSV - voltage full scale
FSI - current full scale
Vf - fundamental voltage
If - 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.
2. Specifications assume: voltage and current waveforms with THD ≤ 5% for kvar, kVA and PF, and
reference operating temperature 20°C - 26°C.
3. Measurement error is typically less than the maximum error indicated