Functions
6-83
7SJ63 Manual
C53000-G1140-C120-1
Figure 6-39
Use of a User Defined Curve
6.6.2.1
Settings for Sensitive Ground Fault Detection
The current-based setting ranges and Default Setting values are independent of the
nominal current rating of the device. The sensitive ground fault detection measures
the current at a special, sensitive input. In general, current-based settings can be en-
tered in primary terms with consideration given to the ratio of the applicable current
transformer. However, problems related to the resolution of the pickup currents can
occur when very small settings and small primary currents are involved. The user is
therefore encouraged to enter settings for the sensitive ground fault detection in sec-
ondary terms.
T/Tp
I/Ip
1 1.1
Anregekennlinie:
20
kleinster Kennlinienpunkt
größter Kennlinienpunkt
Pickup Curve
Smallest Current Point
Largest Current Point
Addr.
LCD-Text
Setting options
Default Setting
Comment
Configu-
ration
D
e
fi
n
it
e
Ti
me
on
ly
U
s
er D
e
fi
ne
d Pi
ck
up
3101 Sens. Gnd Fault OFF
ON
Alarm Only
OFF
Sensitive ground fault pickup
X
X
3102 CT Err. I1
0.003 ~ 1.600 A
0.050 A
Core Balance CT secondary
current I1
X
X
3103 CT Err. F1
0.0 ~ 5.0
°
0.0
°
Core Balance CT fault angle F1
at I1
X
X
3104 CT Err. I2
0.003 ~ 1.600 A
1.000 A
Core Balance CT secondary
current I2
X
X
3105 CT Err. F2
0.0 ~ 5.0
°
0.0
°
Core Balance CT fault angle F2
at I2
X
X
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Содержание siprotec 7SJ63
Страница 16: ...xiv 7SJ63 Instruction Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 28: ...Introduction 1 12 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 112: ...SIPROTEC 4 Devices 4 38 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 346: ...Functions 6 182 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 494: ...Technical Data 10 48 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 604: ...Index Index 6 7SJ63 Instruction Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...