Seg MRD1-T, Manual

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36
TB MRD1-T 10.01 E
Key
D
isplay
Parameters of the characteristic
Select
Setting range
(
•
no selection)
Pre- adjust- ment
actual
Set 1
S
et 2
S
et 3
S
et 4
 
Headline
none
•
••••
•
  
differential current Idiff at stabilizing current Is/In=0 (see picture)
#
0.1...0.5
×
In
"
0.5
  
corresponding to Is/In=2
#
0.2...1
×
In
"
1.0
  
corresponding to Is/In=10
#
2.0...8.0
×
In
8.0
 
maximum permitted differential current
2.0...20.0
×
In
20.0
 
Offset of characteristic curve from static basic characteristic curve
0.0...8.0
2.0
Table: Adjustable protection parameter
"
To get no negative slope in the characteristic part I the setting Idiff (Is=2) must not be less then the setting Idiff (Is=0).
The
MRD1
will check the inputs on this must.
#
In = Transformer nominal current