Seg HighTECH Line MRN3-3, Manual, Page: 46 / 50

46 TD_MRN3-3_08.06_GB
Setting list MRN3-3
Project: SEG job.-no.:
Function group: = Location: + Relay code: -
Relay functions: Password:
Date:
All settings must be checked at site and should the occasion arise, adjusted to the object/item to be protected.
Setting of the parameters
System parameter
Function
Unit Default settings
Actual
settings
U
prim
/U
sek
Voltage transformer ratio X SEK
∆
/Y
input transformer connection DELT
f
N
Rated frequency Hz f=50
∆Θ
/df Selection vector surge or df/dt dfdt
LED blinking after pick-up FLSH
Protection parameter
Function
Unit Default settings
Actual
settings
Voltage limit curve 1 Set1/Set2 Set1 Set2
U<Start Start point of the characteristic curve 1 V 85/195/340/586*
Char 1 Selection symmetric or asymmetric fault ALL
Char 1 Function of characteristic 1 warn
U<1 1. Char. point_value 1 V 45/104/180/310*
1. Char. point_value 2 (not changeable) s - / -
U<2 2. Char. point_value 1 V 45/104/180/310*
U<2+t> 2. Char. point_value 2 s 0,16
U<3 3. Char. point_value 1 V 70/161/280/482*
U<3+t> 3. Char. point_value 2 s 0,18
U<4 4. Char. point_value 1 V 70/161/280/482*
U<4+t> 4. Char. point_value 2 s 0,70
U<5 5. Char. point_value 1 (U-voltage band) V 85/195/340/586*
U<5+t> 5. Char. point_value 2 (End time) s 1,50
tR Permissible release time for
characteristic curve 1 s 0,10
Voltage limit curve 2
U<Start Start point of the characteristic curve 2 V 85/195/340/586*
Char 2 Selection symmetric or asymmetric fault ALL
Char 2 Function of characteristic 2 trip
U<1 1. Char. point_value 1 V 15/34/60/104*
1. Char. point_value 2 (not changeable) s - / -
U<2 2. Char. point_value 1 V 15/34/60/104*
U<2+t> 2. Char. point_value 2 s 0,66
U<3 3. Char. point_value 1 V 85/195/340/586*
U<3+t> 3. Char. point_value 2 s 3,00
* Settings depending on the rated voltage 100 V/230 V/400 V or 690 V