Basler BE1-11g Instruction Manual page 468

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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 187.
Sensing Input Type
5 A
1 A
Step 4: Prepare to monitor the 50-1 function operation. Operation can be verified by monitoring OUT2
(see Figure 310).
Step 5: Connect a current source to terminals D1 and D2 (A-phase). Note that mode can be set for IA,
IB, IC, or 3 phases. Test is conducted on IA.
Step 6: Slowly increase the A-phase current until OUT2 closes and record the pickup. Verify that there
is a 50-1-A 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 phase B and phase C. Note: Be sure to change
Element Mode and enable proper target for each phase being tested.
Step 9: (Optional.) Repeat steps 1 through 8 for settings group 1, 2, and 3.
Step 10: (Optional.) Repeat steps 1 through 9 for 50-2, 50-3, 50-4, 50-5, and 50-6.
Step 11: (Optional.) Repeat steps 1 through 10 with CT Circuit 2 as the source for protection systems
equipped with two sets of CTs. In step 5, replace D1 with F1, D2 with F2, etc.
Timing Verification (Phase Mode)
Step 1: Use BESTCOMSPlus to open the Protection, Current, Instantaneous Overcurrent (50-1) screen
and send the first row of test settings in Table 188 to the BE1-11g for settings group 0.
Step 2: Prepare to monitor the 50-1 timings. Timing accuracy is verified by measuring the elapsed time
between a sensing current change and OUT1 closing.
Step 3: Connect and apply 0.45 A to BE1-11g terminals D1 and D2 (A-phase).
Step 4: Step the A-phase current up to 0.75 A. Measure the time delay and record the result.
Instantaneous Overcurrent (50) Test
Figure 310. BESTlogicPlus Settings (Phase Mode)
Table 187. Pickup Test Settings (Phase Mode)
Range
Low
Middle
High
Low
Middle
High
Pickup Setting
0.5 A
5.0 A
20.0 A
0.1 A
1.0 A
4.0 A
9424200994 Rev U
Time Delay
0 ms
0 ms
0 ms
0 ms
0 ms
0 ms
BE1-11g