Basler BE1-11g Instruction Manual page 434

422
Step 2: Prepare to monitor the 27X-1 timings. Timing accuracy is verified by measuring the elapsed
time between a sensing voltage change and OUT1 closing.
Step 3: Connect and apply a 120 Vac, single-phase voltage source to terminals C17 (polarity) and C18
(non-polarity).
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 155. 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 (Vx Third Harmonic Mode)
Step 1: Use BESTCOMSPlus to send the operational settings in Table 156 to the BE1-11g. Reset all
targets.
Setting
Aux VT Ratio 1
Aux VT AN
Connection
Element Mode Vx Third
Harmonic
Inhibit Level 10 V
Timing Mode Definite
27X-1 3RD Enabled
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 297.
•
Blocking is disabled.
•
OUT1 closes for 27X-1 Trip.
•
OUT2 closes for 27X-1 Pickup.
•
Fault recording is enabled.
Auxiliary Undervoltage (27X) Test
Table 155. Timing Test Settings (Vx Fundamental Mode)
Pickup Setting
115 V
115 V
115 V
Table 156. Operational Settings (Vx Third Harmonic Mode)
Value BESTCOMSPlus Screen
System Parameters, Sensing
Transformers
System Parameters, Sensing
Transformers
Protection, Voltage,
Undervoltage (27X-1)
Protection, Voltage,
Undervoltage (27X-1)
Protection, Voltage,
Undervoltage (27X-1)
Target Configuration, Targets
9424200994 Rev U
Time Delay
2,000 ms
5,000 ms
10,000 ms
Description
Sets auxiliary VT ratio to 1
Sets auxiliary VT connection to
AN
Enables 27X-1 function for Vx
Third Harmonic mode
Sets inhibit level to 10 V
Selects definite timings
Enables Vx Third Harmonic
target for 27X-1
BE1-11g