Basler BE1-11g Instruction Manual page 418

Generator protection system
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406
Step 2:
Use BESTCOMSPlus to configure the BESTlogicPlus Programmable Logic shown in
Figure 291.
Blocking is disabled.
OUT1 closes for 25.
OUT2 closes for 25 Voltage Monitor.
Step 3:
Use BESTCOMSPlus to open the Protection/Voltage/Sync-Check (25) screen and send the test
settings in Table 138 to the BE1-11g.
Setting
25 Voltage Monitor Live
Voltage
25 Voltage Monitor
Dead Voltage
25 Voltage Monitoring
Drop Out Delay
25 Voltage Monitor
Logic
Figure 292. BESTCOMSPlus Sync-Check Screen, 25 Voltage Monitor Logic
Step 4:
Prepare to monitor the 25VM function operation. Operation can be verified by monitoring OUT2.
Step 5:
Connect BE1-11g terminals C13 (A-phase), C14 (B-phase), and C15 (C-phase) together. Apply
a single phase, 0 Vac, 50 or 60-hertz ac voltage source (Line VTP) to the three jumpered
terminals and the neutral terminal (C16). OUT2 should be closed.
Step 6:
Slowly increase the line voltage until OUT2 opens (55 volts). Record the result.
Step 7:
Increase the voltage until OUT2 closes (90 volts). Record the result.
Step 8:
Remove voltage source 1. Connect a second single-phase 50 or 60-hertz voltage source
(Auxiliary VTX) to BE1-11g terminals C17 (polarity) and C18 (non-polarity). Apply 0 Vac. OUT2
should be closed.
Step 9:
Slowly increase the Auxiliary voltage until OUT2 opens (55 volts). Record the result.
Sync-Check (25) Test
Figure 291. BESTlogicPlus Settings (25)
Table 138. Time Pickup Test Settings (25VM)
Value
90%
55%
0
Check boxes as
shown in Figure 292.
Description
Sets live voltage to 90 V (90% of nominal, nominal
= 100 V)
Sets dead voltage to 55 V (55% of nominal, nominal
= 100 V)
Sets drop out delay to 0
Enable: Dead Phase/Dead Aux, Dead Phase/Live
Aux, Live Phase/Dead Aux
9424200994 Rev U
BE1-11g

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