System-disconnection relay EU400 NA-protection
40
Subject to technical changes
Adjustment values table VDE-AR-N 4105:2018-11, Low Voltage 6. table 2, Pr 2
Adjustment values for converters
Protective function
AR
4105
Hager
in * Un
in % Un
Adjustment
value
Tripping
time
dAL
OFF-delay time
doF
Voltage increase protection
U>>
U¯ ¯
1,25 * Un 125 % Un
287 V
100 ms
60 s
Voltage increase protection
(10-minutes mean value)
U>
UՈ
1,1 * Un 110 % Un
253 V
100 ms
60 s
Voltage decrease protection
U<
U_
0,8 * Un
80 % Un
184 V
3,0 s
60 s
Voltage decrease protection
U<<
U_ _
0,45 * Un 45 % Un
103 V
300 ms
60 s
Frequency increase
protection
f>
F¯
51,5 Hz
100 ms
60 s
Frequency decrease
protection
f<
F_
47,5 Hz
100 ms
60 s
Switching conditions
UFon
off
Adjustment values (VDE-AR-N 4110:2018-11 Medium Voltage / VDE-AR-N
4120:2018-11 High Voltage) higher protection Pr 11+12
Acc. to 10.3.5.3 table 12, higher protection device
Funktion
AR
4110
Hager
Adjustment
range of the
protective relay
Default settings
Voltage increase protection
U>>
U¯ ¯
1,00
– 1,30 U
n
1,2 U
n
300 ms
Voltage increase protection
U>
U¯
1,00
– 1,30 U
n
1,1 U
n
180 s
Voltage decrease protection
U<
U_
0,10
– 1,00 U
n
0,80 U
n
2,7 s
Frequency increase protection
*
f>
F¯
50,0
– 65,0 Hz
51,5 Hz
5,4 s
Frequency decrease protection
*
f<
F_
45,0
– 50,0 Hz
47,5 Hz
400 ms
Switching conditions
UFon
off
* Not enabled in as delivered condition