Basler BE1-11g - Page 453

9424200994 Rev N 441
Setting
Value
BESTCOMSPlus Screen
Description
Element Mode
IG
Protection, Current, Instantaneous
Overcurrent (50-1)
Enables 50-1 function for IG
mode
Source
CT Circuit 1
Protection, Current, Instantaneous
Overcurrent (50-1)
Selects CT circuit 1 as the
source
50-1 IND GND
Enabled
Target Configuration, Targets
Enables IND GND target for
50-1
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 299.
• Blocking is disabled.
• OUT1 closes for 50-1 Trip.
• OUT2 closes for 50-1 Pickup.
• Fault recording is enabled.
Figure 299. BESTlogicPlus Settings (IG Mode)
Step 3: Use BESTCOMSPlus to open the Protection, Current, Instantaneous Overcurrent (50-1) screen
and send the low range test settings (minimum pickup setting) to the BE1-11g for your sensing
input type in Table 191.
Table 191. Pickup Test Settings (IG Mode)
Sensing Input Type Range Pickup Setting Time Delay
5 A
Low
0.5 A
0 ms
Middle
5.0 A
0 ms
High
10.0 A
0 ms
1 A or SEF
Low
0.1 A
0 ms
Middle
1.0 A
0 ms
High
2.0 A
0 ms
Step 4: Prepare to monitor the 50-1 function operation. Operation can be verified by monitoring OUT2
(see Figure 299).
Step 5: Connect a current source to terminals D7 and D8 (IG).
Step 6: Slowly increase the ground current until OUT2 closes and record the pickup. Verify that there is
a 50-1-IND GND target on the front-panel display. Slowly decrease the applied current until
OUT2 opens and record the dropout.
Step 7: Repeat step 6 for the middle and high range pickup settings for your sensing input type. Record
the results.
Step 8: (Optional.) Repeat steps 1 through 7 for settings group 1, 2, and 3.
Step 9: (Optional.) Repeat steps 1 through 8 for 50-2, 50-3, 50-4, 50-5, and 50-6.
BE1-11g Instantaneous Overcurrent (50) Test