Basler Electric BE1-11m User Manual

Page 365

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9424200996 Rev L

353

Setting

Value

BESTCOMSPlus Screen

Description

Pickup

2 A

Protection, Current, Instantaneous
Overcurrent (50-1)

Sets pickup to 2 A

Source

CT Circuit 1

Protection, Current, Instantaneous
Overcurrent (50-1)

Selects CT circuit 1 as the
source

Step 8: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 258.

50BF Blocking is disabled.

50BFI is initiated with 50-1 Trip.

52BFI is disabled.

OUT1 closes for 50BF Trip.

OUT2 closes for 50BF ReTrip.

OUT3 closes when minor alarm is true. (Minor Alarm = Breaker Fail)

Fault recording is enabled.

Breaker Status is disabled.

50-1 Blocking is disabled.

Figure 258. BESTlogicPlus Settings (BFI50 Current Supervised BE1-11m Trip Initiate)

Step 9: Verify the BF time delay by applying pickup current (above 2 A) to phase A for at least 100 ms.

A 50BF Trip should occur. Use BESTCOMSPlus to retrieve an SER report and verify that a
50BF Trip was logged 100 milliseconds

±0.5% (1¼ cycles maximum for currents ≥ 5 times the

pickup setting. 1¾ cycles maximum for a current of 2 times pickup. Two cycles maximum for a
current of 1.05 times the pickup setting) after application of pickup current.

Step 10: (Optional.) Raise 50-1 Pickup setting to 10 amps and apply nominal current to the BE1-11m.

Note that OUT1 and OUT2 do not operate. No initiate prevents operation of the breaker failure
function, blocking the breaker fail logic.

Step 11: Verify the Control Time function by using BESTCOMSPlus to send the settings in Table 145 to

the BE1-11m.

Table 145. Control Time Delay Settings

Setting

Value

BESTCOMSPlus Screen

Description

Phase Pickup

1 A

Protection, Current, Breaker Fail (50BF)

Sets phase pickup to 1 A

Ground Pickup

1 A

Protection, Current, Breaker Fail (50BF)

Sets ground pickup to 1 A

Control Timer

100 ms

Protection, Current, Breaker Fail (50BF)

Sets control timer to 100 ms

BE1-11m

Breaker Fail (50BF) Test

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