9424200996 60-9
BE1-11m Auxiliary Overvoltage (59X) Test
Step 5: Connect and apply a single-phase, 120 Vac, 3
rd
harmonic voltage source to the Vx input,
terminals C17 (polarity) and C18 (non-polarity).
Step 6: Slowly increase the voltage until OUT2 closes and record the pickup. Verify that there is a 59X-
1-3RD target on the front-panel display. Slowly decrease the voltage until OUT2 opens and
record the dropout. Reset the target.
Step 7: Verify the pickup and dropout accuracy at 70 Vac for a pickup setting of 75 V and 25 Vac for a
pickup setting of 30 V as listed in Table 60-14. Record the results.
Step 8: (Optional.) Repeat steps 1 through 7 for the B-phase and C-phase voltage inputs.
Step 9: (Optional.) Repeat steps 1 through 8 for settings group 1, 2, and 3.
Step 10: (Optional.) Repeat steps 1 through 9 for 59X-2.
Timing Verification (Vx Third Harmonic Mode)
Step 1: Use BESTCOMSPlus to open the Protection, Voltage, Overvoltage (59X-1) screen and send
the first row of test settings in Table 60-15 to the BE1-11m for settings group 0.
Table 60-15. Timing Test Settings (Vx Third Harmonic Mode)
Step 2: Prepare to monitor the 59X-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, 3
rd
harmonic voltage source to terminals C17
(polarity) and C18 (non-polarity).
Step 4: Step the voltage up to 130 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 60-15. 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 59X-2.
Functional Test Report
Pickup Verification (3V0 Mode)
Pickup Setting Range = 1 to 150 V
Pickup Accuracy = ±2% or ±1 V, whichever is greater
Dropout/Pickup Ratio = 98% ±1%
Ste
p
Low
Actual
Picku
p
High
Low*
Actual
Dropou
t
High*
Pass/Fai
l
6
P / F
7 65.0
63.7
66.3
P / F
7 20.0
19.0
21.0
P / F
* Dropout range is calculated from the pickup setting and may need adjusted based on actual pickup.