74
Time delayed residual overcurrent protection
(TEF)
Chapter 5
Current
Table 84:
Output signals for the TEF (TEF--) function block
3.6
Setting parameters
Path in local HMI: Settings/Functions/Groupn/EarthFault/TEF
Table 85:
Settings for the TEF (TEF--) function
Signal
Description
TRIP
Trip by TEF
TRSOTF
Trip by earth fault switch onto fault function
START
Non directional start
STFW
Forward directional start
STRV
Reverse directional start
Parameter
Range
Default
Unit
Description
Operation
Off, On
Off
-
Operating mode for TEF function
IMeasured
I4, I5
I4
-
Current signal used for earth fault func-
tion
Characteristic
Def, NI, VI, EI,
LOG
Def
-
Time delay characteristic for TEF protec-
tion
IN>
5 - 300
Step: 1
5
% of Inb
Start current for TEF function (I4b or I5b)
IMin
100 - 400
Step: 1
100
% of IN
Minimum operating current
t1
0.000 -
60.000
Step: 0.001
0.000
s
Independent time delay
k
0.05 - 1.10
Step: 0.01
0.05
-
Time multiplier for dependent time delay
tMin
0.000 -
60.000
Step: 0.001
0.050
s
Min. operating time for dependent time
delay function
Содержание REL 551-C1*2.5
Страница 1: ...Technical reference manual ProtectIT Line differential protection terminal REL 551 C1 2 5 ...
Страница 23: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Страница 39: ...30 Technical data Chapter 2 General ...
Страница 63: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Страница 71: ...62 Line differential protection phase segregated DIFL Chapter 4 Line differential protection ...
Страница 89: ...80 Thermal phase overload protection THOL Chapter 5 Current ...
Страница 101: ...92 Event function EV Chapter 7 Logic ...
Страница 160: ...151 Chapter 11 Diagrams Chapter 11 Diagrams This chapter contains the terminal diagrams for the terminal ...
Страница 162: ...153 Terminal diagrams Chapter 11 Diagrams 1 2 Terminal diagram REL 551 C1 Figure 38 REL 551 C1 ...
Страница 163: ...154 Terminal diagrams Chapter 11 Diagrams Figure 39 REL 551 C1 with DC switch ...
Страница 167: ...158 Terminal diagrams Chapter 11 Diagrams ...