SATEC EM720 Installation Manual - Manual (Page 32)

Appendix: Technical Specifications
28
Measurement Specifications
Accuracy
Parameter
Full Scale @ Input
Range
% Reading % FS Conditions
Range
Voltage V1-V3
(L-n) 230 x PT ratio @
230V
0.05 ±0.05 1% up to 140% 0 up to 999,000 V
Voltage V4
(calculated) 230 x PT ratio @
230V
±0.5 5% up to 140%
Voltage V1-V3
(L-n)
69 x PT ratio 0.1 ±0.05 1% up to 140% 0 up to 999,000 V
Voltage V4
(calculated)
69 x PT ratio ±0.5 5% up to 140%
Line current I1- I4 CT primary
current
±0.06 ±0.06 1% up to 120% In 0 up to 20,000 A
Fault current I1-
I4 CT primary
current
±0.5 - 120%- 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 IEC 62053-22 Class 0.2S 0 to 999,999.999 MWh
Reactive energy
Import & Export
Class 0.5S under conditions as per IEC
62053-22:2003 @ 0
≤ |PF| ≤ 0.9
0 to 999,999.999 Mvarh
Apparent energy
Class 0.2S 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% - 200% FS
200% - 3000%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