Appendix C Accuracy/Reliability
Accura 3300E User Guide
Page 86
ⓒ
2015 Rootech Inc. All Rights Reserved
Voltage/Current
Unbalance
3
IEC 61000-4-30, NEMA MG1
-
± 0.5% Full scale
Vector Diagram
3
-
-
± 0.5% Full scale
1
THD[Total Harmonic Distortion], Voltage THD :
√∑
𝑉
𝑘
2
31
𝑘=2
𝑉
1
, Current THD :
√∑
𝐼
𝑘
2
31
𝑘=2
𝐼
1
2
TDD[Total Demand Distortion] :
√∑
𝐼
𝑘
2
31
𝑘=2
𝐼
𝐿
where the
L
I
value can be selected from the rated current[default] and peak demand current [only by
communication].
3
The data are not displayed on the LCD screen of Accura 3300E and are provided only by communication.
IEC 62053-22, Electricity Meter Equipment: Active Energy for Class 0.5S
Current Range
Power Factor
Class 0.5S
0.01 I
n
- 0.05 I
n
1
±
1.0%
0.05 I
n
- I
max
1
1
±
0.5%
0.02 I
n
- 0.1 I
n
0.5 inductive
±
1.0%
0.8 capacitive
±
1.0%
0.1 I
n
- I
max
0.5 inductive
±
0.6%
0.8 capacitive
±
0.6%
0.25 inductive
±
1.0%
0.5 capacitive
±
1.0%
1
Maximum current I
max
=2.0 I
n
, where the rated current I
n
= 5A, 1A
Reliability
IEC 61326, Electrical Equipment for Measurement, Control and Laboratory Use - EMC
Compliance
Condition
IEC 61000-4-2
Electrostatic Discharge[ESD]
4kV/8kV contact/air
IEC 61000-4-3
EM Field
10V/m, 80M - 2700MHz
IEC 61000-4-4
Electric Fast Transient
2Kv
IEC 61000-4-5
Surge Immunity
1kV/2kV, line to line/line to earth
IEC 61000-4-6
Conducted Radio Frequency Common Mode 10V
IEC 61000-4-8
Rated Power Frequency Magnetic Field
30A/m
IEC 61000-4-11
Voltage Dip
half cycle, each polarity 100%
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