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Timing verification – Basler Electric BE1-11g User Manual

Page 523

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9424200994 Rev N

511

Figure 314. 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 BESTCOMSPlus to verify the operational settings in Table 233 and logic in Figure 314.

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.

BE1-11g

Out of Step (78OOS) Test