Functions
6-837SJ63 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
11.1
Anregekennlinie:
20
kleinster Kennlinienpunkt
größter Kennlinienpunkt
Pickup Curve
Smallest Current Point
Largest Current Point
Addr. LCD-Text Setting options Default Setting Comment Configu-
ration
Definite Time only
User Defined Pickup
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
XX
3103 CT Err. F1 0.0 ~ 5.0
° 0.0° Core Balance CT fault angle F1
at I1
XX
3104 CT Err. I2 0.003 ~ 1.600 A 1.000 A Core Balance CT secondary
current I2
XX
3105 CT Err. F2 0.0 ~ 5.0
° 0.0° Core Balance CT fault angle F2
at I2
XX
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