Basler BE1-11g, Instruction Manual

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9424200994 Rev U 529
BE1-11 g Out of Step (78OOS) Test
Figure 328. BESTlogicPlus Settings
Step 9: Slowly decrease the angles of the voltage inputs to close OUT4 and OUT5 (impedance is
between both blinders). Wait approximately 1 second for OUT2 to close and continue
decreasing the angles until OUT4 and OUT5 reopen (impedance has crossed Blinder A). For A-
phase, this should occur at
–
106.78
° ±
0.35
°
. OUT1 (78OOS trip) should close after
approximately 1 second.
Step 10: Set the voltage input angles to A
∠
180
°
, B
∠
60
°
, C
∠
300
°
. Increase the voltage until OUT3
reopens. This should occur at 34.64V
±
0.69 V. After OUT3 reopens, OUT1 will reopen after
approximately 6 seconds and reset the 78OOS element.
Step 11: (Optional.) Repeat steps 1 through 10 for settings group 1, 2, and 3.
Timing Verification
Step 1: Use BESTCOMS Plus to verify the operational settings in Table 238 and logic in Figure 328.
Reset all targets.
Step 2: Prepare to monitor the 78OOS timings. Timing accuracy for the Blinder Traverse Time Delay
setting can be verified by measuring the elapsed time between OUT5 (Blinder B pickup) closing
and OUT2 (78OOS pickup) closing. Timing accuracy for the Trip Delay setting can be verified
by measuring the elapsed time between OUT4 (Blinder A pickup) opening and OUT1 (78OOS
trip) closing. Timing accuracy for reset can be verified by measuring the elapsed time between
OUT3 (MHO pickup) opening and OUT1 (78OOS trip) opening.
Step 3: Connect and apply 2.0 A balanced three-phase current to terminals D1 through D6 and a
balanced 40V three-phase phase-neutral voltage source to terminals C13 (A-phase), C14 (B-
phase), C15 (C-phase), and C16 (Neutral).
Step 4: Slowly decrease the voltage until OUT3 closes.
Step 5: Slowly decrease the angle of the voltage inputs until OUT5 closes (OUT4 will also close) and
record the time between when OUT5 closes and OUT2 closes. This should be 1,000 ms
±
33.3 ms.
Step 6: Continue decreasing the angle of the voltage inputs until OUT4 reopens and record the time
between when OUT4 opens and OUT1 closes. This should be 1,000 ms
±
33.3 ms.
Step 7: Set the voltage input angles to A
∠
180
°
, B
∠
60
°
, C
∠
300
°
. Increase the voltage until OUT3
reopens and record the time between when OUT3 opens and OUT1 opens. This should be
6,000 ms
±
33.3 ms.