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2.6
2.7
Definite time non-directional overcurrent
protection (TOC)
Setting parameters
Path in local HMI: Settings/Functions/Groupn/TimeDelayOC (where n=1-4)
Table 117: Setting parameters for the time delayed phase and residual overcurrent pro-
tection TOC (TOC--) function
Parameter
Range
Operation
Off, On
IP>
10-400
Step: 1
tP
0.000-60.000
Step: 0.001
IN>
10-150
Step:1
tN
0.000-60.000
Step: 0.001
Technical data
Table 118: TOC - Definite time nondirectional overcurrent protection
Function
Operate current
Phase measuring ele-
ments, IP>
Residual measuring ele-
ments, IN>
Time delay
Phase measuring ele-
ments
Residual measuring ele-
ments
Dynamic overreach at τ < 100 ms
Default
Unit
Description
Off
-
Operating mode for TOC function
100
% of I1b
Operating phase overcurrent
10.000
s
Time delay of phase overcurrent function
100
% of I4b
Operating residual current
10.000
s
Time delay of residual overcurrent func-
tion
Setting range
(10-400) % of I1b in
steps of 1 %
(10-150) % of I4b in
steps of 1 %
(0.000-60.000) s in
steps of 1 ms
(0.000-60.000) s in
steps of 1 ms
-
Chapter 5
Current
Accuracy
± 2.5 % of I
at I ≤ I
r
r
± 2.5 % of I at I >I
r
± 2.5 % of I
at I ≤ I
r
r
± 2.5 % of I at I >I
r
± 0.5 % of t ± 10 ms
± 0.5 % of t ± 10 ms
< 5 %
111
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