Basler BE1-11g Instruction Manual page 453

Generator protection system
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9424200994 Rev N
Setting
Element Mode
IG
Source
CT Circuit 1
50-1 IND GND
Enabled
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.
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.
Sensing Input Type
5 A
1 A or SEF
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
Value
BESTCOMSPlus Screen
Protection, Current, Instantaneous
Overcurrent (50-1)
Protection, Current, Instantaneous
Overcurrent (50-1)
Target Configuration, Targets
Figure 299. BESTlogicPlus Settings (IG Mode)
Table 191. Pickup Test Settings (IG Mode)
Range
Low
Middle
High
Low
Middle
High
Enables 50-1 function for IG
mode
Selects CT circuit 1 as the
source
Enables IND GND target for
50-1
Pickup Setting
0.5 A
5.0 A
10.0 A
0.1 A
1.0 A
2.0 A
Instantaneous Overcurrent (50) Test
441
Description
Time Delay
0 ms
0 ms
0 ms
0 ms
0 ms
0 ms

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