Basler BE1-11g Instruction Manual page 414

402
nominal shown in Table 134 for Time Dial 0.5. Measure the time between the increase of
voltage and the closure of OUT1. Record the results.
Percent of
Nominal V/Hz
110%
120%
140%
Step 4: Repeat the test for Time Dial 1.0 and 2.0. Record the results.
Step 5: (Optional.) Repeat steps 1 through 4 for the B-phase and C-phase voltage inputs.
Step 6: (Optional.) Repeat steps 1 through 5 for settings group 1, 2, and 3.
Inverse Time Reset Verification
Step 1: Use BESTCOMSPlus to open the Protection, Voltage, Overexcitation (24) screen and send the
test settings in Table 135 to the BE1-11g.
Setting
Inverse Time Pickup
Inverse Time Dial
Inverse Reset Dial
Curve Exponent
Definite Timer 1 Pickup
Definite Timer 2 Pickup
Alarm Pickup
Step 2: Connect and apply 120 Vac, three-phase, 60-hertz voltage source to Terminals C13 (A-phase),
C14 (B-phase), C15 (C-phase), and C16 (neutral).
Step 3: Step the A-phase voltage to 144 V (120% of nominal V/Hz). OUT1 should close in
approximately 12.5 seconds. Remove the test voltage (step back down to 120 V) and reapply
(step back up to 144 V) after 5 seconds has elapsed. Measure the time from when the test
voltage is reapplied until OUT1 closes. Record the result.
Note: With a Reset Time Dial setting of 0.2, the total time to reset, after trip is removed, will be
approximately 10 seconds. (See the Overexcitation (24) Protection chapter for more details.)
Reapplying the test voltage after 5 seconds will yield a trip time of approximately ½ its original
value or 6.25 seconds for Trip Time Dial 0.5 verifying that the reset time delay is working.
Step 4: Repeat step 3 for Trip Time Dial 1.0 and 2.0 (½ trip time is approximately 12.5 seconds for Time
Dial 1.0, and 25 seconds for Time Dial 2.0. (Still reapply voltage after 5 seconds as reset time
dial is still 0.2.) Record the results.
Step 5: (Optional.) Repeat steps 1 through 4 for the B-phase and C-phase voltage inputs.
Step 6: (Optional.) Repeat steps 1 through 5 for settings group 1, 2, and 3.
Definite Time Verification
Step 1: Use BESTCOMSPlus to open the Protection, Voltage, Overexcitation (24) screen and send the
test settings in Table 136 to the BE1-11g.
Overexcitation (24) Test
Table 134. Inverse Time Verification Trip Times
Step Voltage Time Dial 0.5
132 V 50 seconds
144 V 12.5 seconds
168 V 3.1 seconds
Table 135. Inverse Time Reset Verification Test Settings
Value
2.1 Sets Inverse Time Pickup at 105% of nominal (2.10 V/Hz)
0.5 Sets Inverse Time Dial at 0.5
0.2 Sets Inverse Reset Dial at 0.2
2 Sets Curve Exponent to 2
0 Disables Definite Timer 1 Pickup
0 Disables Definite Timer 2 Pickup
0 Disables Alarm Pickup
9424200994 Rev U
Time Dial 1.0 Time Dial 2.0
100 seconds 200 seconds
25 seconds 50 seconds
6.3 seconds 12.5 seconds
Description
BE1-11g