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Pickup verification (3i0 mode) – Basler Electric BE1-11g User Manual

Page 465

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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 199, 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 the B-phase and C-phase current inputs. Note: Be sure

to enable proper target for each phase being tested.

Step 7: (Optional.) Repeat steps 1 through 6 for settings group 1, 2, and 3.

Step 8: (Optional.) Repeat steps 1 through 7 for 51-2, 51-3, 51-4, 51-5, 51-6, and 51-7.

Step 9: (Optional.) Repeat steps 1 through 8 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.

Table 199. Timing Test Settings (Phase Mode)

Sensing Type

Time Dial

Applied Current

5 A

0.5

1.00 A

2.50 A

12.50 A

5.0

1.00 A

2.50 A

12.50 A

9.9

1.00 A

2.50 A

12.50 A

1 A

0.5

0.20 A

0.50 A

2.50 A

5.0

0.20 A

0.50 A

2.50 A

9.9

0.20 A

0.50 A

2.50 A

Pickup Verification (3I0 Mode)

Step 1: Use BESTCOMSPlus to send the operational settings in Table 200 to the BE1-11g. Reset all

targets.

Table 200. Operational Settings (3I0 Mode)

Setting

Value

BESTCOMSPlus Screen

Description

Phase CT
Ratio

1

System Parameters, Sensing
Transformers

Sets phase CT ratio to 1

Element
Mode

3I0

Protection, Current, Inverse Overcurrent
(51-1)

Enables 51-1 function for
3I0 mode

BE1-11g

Inverse Overcurrent (51) Test