Basler Electric BE1-11t - Manual (Page 343)

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Step 3: Connect and apply a 120 Vac, single-phase voltage source to terminals C13 (A-phase) and C16
(neutral).
Step 4: Step the voltage down to 110 volts. Measure the time delay and record the result.
Step 5: Repeat step 4 for the 5,000 ms and 10,000 ms time delay settings of Table 120. Record the
results.
Step 6: (Optional.) Repeat steps 1 through 5 for settings group 1, 2, and 3.
Step 7: (Optional.) Repeat steps 1 through 6 for 27X-2, 27X-3, and 27X-4.
Pickup Verification (V2 Mode)
Step 1: Use BESTCOMSPlus to send the operational settings in Table 121 to the BE1-11t. Reset all
targets.
Table 121. Operational Settings (V2 Mode)
Setting Value BESTCOMSPlus Screen Description
Phase VT Ratio 1 System Parameters, Sensing
Transformers Sets phase VT ratio to 1
Phase VT
Connection 4W-Y System Parameters, Sensing
Transformers Sets phase VT connection to
4W-Y
27/59 Mode PN System Parameters, Sensing
Transformers Sets 27/59 mode to phase-
neutral
Element Mode V2 Protection, Voltage, Undervoltage
(27X-1) Enables 27X-1 function for V2
mode
Inhibit Level 10 V Protection, Voltage, Undervoltage
(27X-1) Sets inhibit level to 10 V
Timing Mode Definite Protection, Voltage, Undervoltage
(27X-1) Selects definite timings
27X-1 V2 Enabled Target Configuration, Targets Enables V2 target for 27X-1
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 241.
•
Blocking is disabled.
•
OUT1 closes for 27X-1 Trip.
•
OUT2 closes for 27X-1 Pickup.
•
Fault recording is enabled.
Figure 241. BESTlogicPlus Settings (V2 Mode)
Step 3: Use BESTCOMSPlus to open the Protection, Voltage, Undervoltage (27X-1) screen and send
the first row of test settings in Table 122 to the BE1-11t.
Step 4: Prepare to monitor the 27X-1 function operation. Operation can be verified by monitoring OUT2
(see Figure 241).
BE1-11t Auxiliary Undervoltage (27X) Test