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TS3
1SDH000670R0002
L3852
36/44
Example of test on PR232:
Current generation on phase L1
Setting on the trip unit for L, S, I protections.
Protection
Curve
Trip
threshold
Trip time
I test
Expected
tripping
time
L
t=k/I
2
I1= 0.4In
3s
2.4In
3s
S
t=k
I2=5In
t2 = 0.25s
6In
0,25s
I
I3=7In
8.4In
60ms
Table 17