Basler BE1-11g Instruction Manual page 469

Generator protection system
Hide thumbs Also See for BE1-11g:
Table of Contents

Advertisement

9424200994 Rev U
Step 5:
Repeat step 4 for the 5,000 ms and 10,000 ms time delay settings of Table 188. Record the
results.
Step 6:
(Optional.) Repeat steps 1 through 5 for the B-phase and C-phase current inputs.
Step 7:
(Optional.) Repeat steps 1 through 6 for settings group 1, 2, and 3.
Step 8:
(Optional.) Repeat steps 1 through 7 for 50-2, 50-3, 50-4, 50-5, and 50-6.
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.
Pickup Verification (3I0 Mode)
Step 1:
Use BESTCOMSPlus to send the operational settings in Table 189 to the BE1-11g. Reset all
targets.
Setting
Value
Phase CT
1
Ratio
Element
3I0
Mode
Source
CT Circuit 1
50-1
Enabled
Residual
Step 2:
Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 311.
Blocking is disabled.
OUT1 closes for 50-1 Trip.
OUT2 closes for 50-1 Pickup.
Fault recording is enabled.
Step 3:
Use BESTCOMSPlus to open the Protection, Current, Instantaneous Overcurrent (50-1) screen
and send the low range test settings (minimum pickup setting) to the BE1-11g for your sensing
input type in Table 190.
BE1-11g
Table 188. Timing Test Settings (Phase Mode)
Pickup Setting
0.5 A
0.5 A
0.5 A
Table 189. Operational Settings (3I0 Mode)
BESTCOMSPlus Screen
System Parameters, Sensing
Transformers
Protection, Current,
Instantaneous Overcurrent (50-1)
Protection, Current,
Instantaneous Overcurrent (50-1)
Target Configuration, Targets
Figure 311. BESTlogicPlus Settings (3I0 Mode)
Time Delay
2,000 ms
5,000 ms
10,000 ms
Description
Sets phase CT ratio to 1
Enables 50-1 function for 3I0 mode
Selects CT circuit 1 as the source
Enables residual target for 50-1
Instantaneous Overcurrent (50) Test
457

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BE1-11g and is the answer not in the manual?

Table of Contents

Save PDF