Chauvin Arnoux C.A 6116, Руководство пользователя

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Characteristics in non-tripping 3-wire mode:
Measurement range 0.20 - 1.99
W
2.00 - 39.99
W
40.0 - 399.9
W
400 - 3999
W
Resolution 0.01
W
0.1
W
1
W
RMS measurement current choice of 6. 9. or 12 mA
Intrinsic uncertainty on the im-
pedance measurement
4
± (15% + 10 ct) ± (10% + 3 ct) ± (5% + 2 ct) ± (5% + 2 ct)
Intrinsic uncertainty on the
resistive part
± (15% + 10 ct) ± (10% + 3 ct) ± (5% + 2 ct) ± (5% + 2 ct)
Intrinsic uncertainty on the
inductive part
± (10% + 3 ct) ± (10% + 3 ct) ± (5% + 2 ct) ± (5% + 2 ct)
Operating uncertainty on the
impedance measurement
± (20% + 3 ct) ± (12% + 3 ct) ± (12% + 2 ct) ± (5% + 2 ct)
4: There is no measurement of the inductive in L-PE loop part with a low current.
The intrinsic uncertainty is defined for 0.1
≤
R
L
/ R
N
≤
10 with R
L
and R
N
≥
1
W
.
The duration of the measurement depends on the voltage of the installation, on the measured impedance value, and on the ac-
tivation of the smoothing filter (SMOOTH).
If smoothing is activated (SMOOTH mode), the instability of the intrinsic uncertainty is then halved (for example: ±5 digits becomes
±2.5 digits) and the duration of the measurement is of the order of 30 s.
Characteristics of the short-circuit current calculation:
Calculation formula : Ik = U
REF
/ Z
S
Calculation range 0.1 - 399.9 A 400 - 3999 A 4.00 - 6.00 kA
Resolution 0.1 A 1 A 10 A
Intrinsic uncertainty
= √ (Intrinsic uncertainty on the voltage measurement if U
MEAS
is used)²
+ (Intrinsic uncertainty on the loop measurement)²
Operating uncertainty
= √ (Operating uncertainty on the voltage measurement if U
MEAS
is used)²
+ (Operating uncertainty on the loop measurement)²
8.2.8. lInE IMPEDAnCE MEAsUREMEnts
Particular reference conditions:
Voltage of the installation: 90 to 500 V.
Stability of the voltage source: <0.05%.
Frequency of the installation: 15.8 to 17.5 Hz and 45 to 65 Hz.
Resistance of the leads: zero or compensated.
Compensation of the leads up to 5
W
.