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Fig. 184:
"Extremely inverse" characteristic
ID
Parameter
CL
Setting range
[Default]
Description
4030
Monitoring
2
[On]
Overcurrent monitoring is carried
out according to the following
parameters.
Off
No monitoring is carried out.
4034
Inverse time
characteristic
2
Selection of the used overcurrent
characteristic.
[Normal]
The "normal inverse" tripping
curve will be used
Strong
The "highly inverse" tripping curve
will be used
Extreme
The "extremely inverse" tripping
curve will be used.
4035
Inverse time
overcurrent Tp=
2
0.01 to 5.00 s
[0.06 s]
Time constant T
p
used to calculate
the characteristics.
4036
Inverse time
overcurr. Ip=
2
10.0 to 300.0%
[100.0%]
Current constant I
P
used to
calculate the characteristics.
4037
Inv. time overcurr. I-
start=
2
100.0 to 300.0%
[115.0%]
(Hysteresis: 1%)
(Reset Delay: 1 s)
Lower tripping value for inverse
time-overcurrent protection. If the
monitored current is less than
I
start
, the inverse time-overcurrent
protection does not trip. If I
start
is
less than I
P
, I
P
is used as the lower
tripping value.
437
easYgen-3000XT Series
B37574
4 Configuration
4.5.1.4.2 Generator Inverse Time-Overcurrent ANSI# IEC 255
Released