Basler Electric BE1-11t - Manual (Page 379)

9424200995 Rev H 367
Step 4: Step the A-phase current up to 0.55 A. Measure the time delay and record the result.
Step 5: Repeat step 4 for the 5,000 ms and 10,000 ms time delay settings of Table 160. Record the
results.
Step 6: (Optional.) Repeat steps 1 through 5 for settings group 1, 2, and 3.
Step 7: (Optional.) Repeat steps 1 through 6 for 50-2, 50-3, 50-4, 50-5, 50-6, 50-7, 50-8, and 50-9.
Step 8: (Optional.) Repeat steps 1 through 7 with CT Circuit 2 as the source. In step 5, replace D1 with
F1, D2 with F2, etc.
Pickup Verification (I2 Mode)
Step 1: Use BESTCOMSPlus to send the operational settings in Table 161 to the BE1-11t. Reset all
targets.
Table 161. Operational Settings (I2 Mode)
Setting Value BESTCOMSPlus Screen Description
Phase CT
Ratio 1 System Parameters, Sensing
Transformers Sets phase CT ratio to 1
Element
Mode I2 Protection, Current,
Instantaneous Overcurrent (50-1) Enables 50-1 function for I2 mode
Source CT Circuit 1 Protection, Current,
Instantaneous Overcurrent (50-1) Selects CT circuit 1 as the source
50-1 Neg
SEQ Enabled Target Configuration, Targets Enables Neg SEQ target for 50-1
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 256.
•
Blocking is disabled.
•
OUT1 closes for 50-1 Trip.
•
OUT2 closes for 50-1 Pickup.
•
Fault recording is enabled.
Figure 256. BESTlogicPlus Settings (I2 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 162.
Table 162. Pickup Test Settings (I2 Mode)
Sensing Input Type Range Pickup Setting Time Delay
5 A
Low 0.5 A 0 ms
Middle 5.0 A 0 ms
High 9.0 A 0 ms
BE1-11t Instantaneous Overcurrent (50) Test