Appendix C Accuracy/Reliability
Accura 2300S/2350-1P3FSC User Guide
Page 172
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Appendix C Accuracy/Reliability
Accuracy
Accura 2300S/2350-1P3FSC
Item
Accuracy
Measuring Range(Accuracy Guaranteed)
/ Minimum Measured Value
Frequency
IEC 61557-12 Class 0.2 (
10 mHz)
42
–
69 Hz
Voltage
±
0.2 % Reading
AC 60
–
600 V Line-to-line/
AC 5 V Line-to-neutral
Residual voltage
1
±
0.2 % Reading
Up to 600 V Line-to-line
Current
±
0.5 % Reading
2
1.0 % Ib
–
120 % Ib / 0.67 % Ib
3
Power
Active
IEC 61557-12 Class 0.5
1.0 % Ib
–
120 % Ib
Reactive
IEC 61557-12 Class 1
Apparent
IEC 61557-12 Class 0.5
Energy
Active
IEC 62053-22 Class 0.5S
1.0 % Ib
–
120 % Ib
Reactive
4
IEC 62053-24 Class 1
Apparent
4
IEC 61557-12 Class 0.5
Power factor
IEC 61557-12 Class 0.5 (
0.005)
1.0 % Ib
–
120 % Ib
Leakage current
5
±
2 % R 2 mA
Up to 2 A
1. It is the reading error of the maximum phase voltage/phase current among three-phase values because it is
calculated from the phase voltage/phase current.
2. The maximum measurement error of
±
1 % may occur according to the position of the hole through which cables
pass.
3. Ib indicates the basic current of Accura 2350-1P3FSC modules.
4. The data are not displayed on the LCD screen of Accura 2300S and provided only via communication.
5. It is available only on Accura 2350-1P3FSC-DIZCT module. It indicates the measurement accuracy for when the
error of the external ZCT is zero.
Power Quality
Item
Condition
Accuracy
Voltage Dip(Sag)/Swell
RMS voltage measured over 1 cycle
(refreshed every half cycle)
±
0.5 % Full Scale
Voltage THD
up to the 40th harmonic
±
0.5 % Full Scale
Current THD/TDD
up to the 31st harmonic
±
0.5 % Full Scale
Voltage Unbalance
Unbalance according to symmetrical components/the NEMA
MG1 standard
±
0.5 % Full Scale
Vector diagram
±
0.5 % Full Scale
Содержание ACCURA 2300S
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