4.4.2
EN 50160
Voltage Quality acc EN 50160 (with optional firmware module „PQ S“ only)
evaluation period
weekly
reference conditions
measuring range
measuring uncertainty
twice the levels of class II acc. to IEC 61000–4-7 ed.2
Flicker
measuring range
0.4 ÷ 10
measuring uncertainty
Voltage Dips & Swells
measuring uncertainty
+/- 0.1 % of rdg ± +/- 0.05 % of rng
Voltage Interruptions
measuring uncertainty
+/- 0.2 % of rdg ± +/- 0.1 % of rng
duration measuring uncertainty
± 1 cycle
Mains Signalling Voltage
evaluation period
3s interval
Interharmonics (up to 50
th
order )
other harmonics up to 200 % of class 3 acc. to IEC 61000–2-4 ed.2
10 ÷ 100 % of class 3 acc. to IEC 61000–2-4 ed.2
± 5 % of rdg (acc. to IEC 61000–4-15 ed.2.0)
4.4.3
IEC 61557-12: Classification of the power monitoring instrument
Instrument characteristics according to IEC 61557-12
power quality assessment function
PQI-S
temperature according to par. 4.5.2.2
K55
hu altitude according to par. 4.5.2.3
active power/energy function performance class
0.5
classification according to par. 4.3
direct voltage connection
voltage connection via VT
SD
SS
< 95 % - noncondensation conditions
< 3000 m
36
