7 Technical specifications
67
CT clamps C-5(A)
0..1000 A
(3600 A
p-p
)
0.01% I
nom
Additional uncertainty
0,5..100
A: ≤ (1.5% + 1 A)
100..800
A: ≤ 2.5%
800..1000
A AC: ≤ 4%
800..1400
A DC: ≤ 4%
CT clamps C-6(A)
0..10 A
(36 A
p-p
)
0.01% I
nom
Additional uncertainty
0,01..0.1 A:
(3% + 1 mA)
0.1..1 A:
2.5%
1..12 A:
1%
CT clamps C-7(A)
0..100 A
(360 A
p-p
)
0.01% I
nom
Additional uncertainty
0..100A:
(0,5% + 0,02A)
(45..65Hz)
0..100A:
(1,0% + 0,04A)
(40..1000Hz)
Crest Factor
1..10 (1..3,6 for I
nom
)
for I
RMS
≥ 1% I
nom
0.01
5%
7.3.4 Frequency
Frequency
Ranges and conditions
Resolution
Basic uncertainty
F
40..70 Hz
10% U
nom
≤ U
RMS
≤ 120% U
nom
0.01 Hz
0.05 Hz
7.3.5 Harmonics
Harmonics
Ranges and condi-
tions
Resolution
Basic uncertainty
Harmonic (n)
DC, 1..40, grouping: harmonics sub-groups acc. to IEC 61000-4-7
U
RMS
amplitude
0..200% U
nom
0.01% U
nom
0.15% U
nom
if m.v. <3% U
nom
5% m.v. if m.v. ≥ 3% U
nom
(acc. to IEC 61000-4-7 Class I)
I
RMS
amplitude
Depending clamps
used (see specifica-
tions for I
RMS
)
0.01% I
nom
0.5% I
nom
if m.v. <10% I
nom
5% of m.v. if m.v. ≥ 10% I
nom
(acc. to IEC 61000-4-7 Class I)
Voltage THD-R
(n = 2..40)
0.0…100.0%
for U
RMS
≥ 1% U
nom
0.1%
5%
Current THD-R
(n = 2..40)
0.0…100.0%
for I
RMS
≥ 1% I
nom
0.1%
5%
Phase angle (voltage)
-180
…+180
0.1
(n
1
)
Phase angle (current)
-180
…+180
0.1
(n
1
)
7.3.6 Power and energy
Power and energy
Conditions
(for power and energy
80% U
nom
≤ U
RMS
< 120% U
nom
)
Resolution
Basic uncertainty
(1)
Active power
Active energy
2% I
nom
≤ I
RMS
< 5% I
nom
cos
= 1
depending on
U
nom
and I
nom
√2.5
2
+ 𝛥
𝑝ℎ
2
%
5% I
nom
≤ I
RMS
≤ I
nom
cos
= 1
√2.0
2
+ 𝛥
𝑝ℎ
2
%
5% I
nom
≤ I
RMS
< 10% I
nom
cos
= 0.5
√2.5
2
+ 𝛥
𝑝ℎ
2
%
10% I
nom
≤ I
RMS
≤ I
nom
cos
= 0.5
√2.0
2
+ 𝛥
𝑝ℎ
2
%
Summary of Contents for PQM-700
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