LIMITED VALUES OF TECHNICAL PARAMETERS



Area
Quallity of electrical energy
EMC
Organisation
CENELEC
EDF
 Eskom
IEEE
CENELEC
Recommendation
EN 50160
Contract émeraude
ESKASAA 18
 IEEE 519
IEC 61000-2-2
Area of use
NN i SN
SN
-
SN i VN           
NN
Voltage changes
± 10 %3
± 5 %
± 10 %
-
± 10 %
Dissymmetry
2 %(3 %)
2 %
2 %
-
-2 %
Higher harmonics
0,5 – 6,0 %
(table)

0,5 – 6,0 %
(table)

EPCC

< 69 kV 3 % ²
0,2 – 6,0 %
(table)

< 161 kV 1,5 % ²
> 161 kV 1,0 % ²
THDU
8 %
8 %
6 %
< 69 kV 5 %
8 %
< 161 kV 2,5 %
< 161 kV 1,5 %
Between harmonics
-
-
EPCC

0,2%
Signal voltages
bordered with
curve
-
-
-
-
Flicker
Plt=1
Plt=1
Plt=1
border curve
UIE-curve
Interruptions (short)
10 - 100
per year
2 - 36
per year1
-
-
-
Interruptions (long)
10 - 50
per year
2 – 6
per year1
-
-
-
Voltage collapses
10 - 1000
per year
-
table
-
1 – 4
monthly
Frequency in connected networks
± 1 %
(+ 4 / - 6 %)
± 1 %
± 2,5 %
-
± 1 Hz
Frequency in use
± 2 %
(± 15 %)
+ 4 / - 6 %
-
-
-
Network overvoltages
NN: < 1,5
kV
SN: < 2 Un
-
-
-
-

Transiental
Overvoltages

NN: < 6 kV
SN
-
-
-
-
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