Basler Electric BE1-11t - Manual (Page 381)

9424200995 Rev H 369
Pickup Verification (IG Mode)
Step 1: Use BESTCOMSPlus to send the operational settings in Table 164 to the BE1-11t. Reset all
targets.
Table 164. Operational Settings (IG Mode)
Setting Value BESTCOMSPlus Screen Description
Ground CT
Ratio 1 System Parameters, Sensing
Transformers Sets ground CT ratio to 1
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 257.
•
Blocking is disabled.
•
OUT1 closes for 50-1 Trip.
•
OUT2 closes for 50-1 Pickup.
•
Fault recording is enabled.
Figure 257. 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 BE1-11t for your sensing
input type in Table 165.
Table 165. 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 257).
Step 5: Connect a current source to terminals D7 and D8 (IG).
BE1-11t Instantaneous Overcurrent (50) Test