9424200994 Rev U
Timing Verification (3I0 Mode)
Step 1: Use BESTCOMSPlus to open the Protection, Current, Inverse Overcurrent (51-1) screen and
send the test settings in Table 207 to the BE1-11g for settings group 0.
0.5 A (5 A sensing), 0.1 A (1 A sensing)
Step 2:
Prepare to monitor the 51-1 timings. Timing accuracy is verified by measuring the elapsed time
between a sensing current change and OUT1 closing.
Step 3:
Connect a current source to BE1-11g terminals D1 and D2 (A-phase).
Step 4:
Using the values listed in Table 208, apply the appropriate current values, and measure the
time between the application of current and the closure of OUT1. Record the results.
Step 5:
Repeat step 4 for all of the current and time dial settings for your current sensing type.
Step 6:
(Optional.) Repeat steps 1 through 5 for settings group 1, 2, and 3.
Step 7:
(Optional.) Repeat steps 1 through 6 for 51-2, 51-3, 51-4, 51-5, 51-6, and 51-7.
Step 8:
(Optional.) Repeat steps 1 through 7 with CT Circuit 2 as the source for protection systems
equipped with two sets of CTs. In step 3, replace D1 with F1, D2 with F2, etc.
Pickup Verification (I2 Mode)
Step 1:
Use BESTCOMSPlus to send the operational settings in Table 209 to the BE1-11g. Reset all
targets.
BE1-11g
Table 207. Timing Test Settings (3I0 Mode)
Pickup Setting
Table 208. Timing Test Settings (3I0 Mode)
Sensing Type
Time Dial
5 A
1 A
Applied Current
0.5
5.0
9.9
0.5
5.0
9.9
Time Curve
I2
1.00 A
2.50 A
12.50 A
1.00 A
2.50 A
12.50 A
1.00 A
2.50 A
12.50 A
0.20 A
0.50 A
2.50 A
0.20 A
0.50 A
2.50 A
0.20 A
0.50 A
2.50 A
Inverse Overcurrent (51) Test
473
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