13-38 BE1-951 Testing and Maintenance 9328900990 Rev L
Table 13-51. 27P and 59P Pickup and Time Delay Settings
Phase Pickup and Time Delay Settings
Undervoltage Overvoltage
Purpose
S0-27P=72,2s S0-59P=156,2s Sets 27P PU at 72 V, 59P at 156 V, TD at 2 sec
S0-27P=,5s S0-59P=,5s Sets 27P PU at 72 V, 59P at 156 V, TD at 5 sec
S0-27P=,10s S0-59P=,10s Sets 27P PU at 72 V, 59P at 156 V, TD at 10 sec
Step 2: Prepare to monitor the 27P and 59P 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, three-phase voltage source to Terminals C13 (A-phase), C14 (B-
phase), C15 (C-phase), and C16 (Neutral). Refer to
Figure 13-1 for terminal locations.
Step 4: Step the A-phase voltage down to 68 volts. Measure the time delay and verify the accuracy of
the 27P time delay setting. Timing accuracy is ±0.5 percent or ±1 cycles of the time delay
setting.
Step 5: Step the A-phase voltage up to 165 volts. Measure the time delay and verify the accuracy of the
59P time delay setting. Timing accuracy is ±0.5 percent or ±1 cycles of the time delay setting.
Step 6: Repeat Steps 5 and 6 for the middle and upper time delay settings of
Table 13-51.
Step 7: (Optional.) Repeat Steps 2 through 6 for the B-phase and C-phase voltage inputs.
Step 8: (Optional.) Repeat Steps 2 through 7 for Setting Groups 1, 2, and 3.
Auxiliary Undervoltage/Overvoltage Pickup Verification (3E0 VT Input)
Step 1: Prepare the 27X and 59X/159X pickup function for testing by transmitting the commands in
Table 13-52 to the relay. Reset targets.
Table 13-52. 27X and 59X/159X Pickup Test Commands
Command Purpose
A= Gains write access.
SL-N=NONE
Zero out custom logic settings. Overwrite with LOGIC=NONE
settings.
Y Confirm overwrite.
SL-N=27X/59/159X Sets 27X/59/159X as custom logic name.
SL-47=0 Disables 47.
SL-27X=2,0 Enables 27X (3E0), disables blocking.
SL-59X=2,0 Enables 59X, disables blocking.
SL-159X=2,0 Enables 159X, disables blocking.
SL-VO1=27XT+59XT Enables OUT1 to close for 27X and 59X trip.
SL-VO2=159XT Enables OUT2 to close for 159X trip.
SG-TRIG=27XT+59XT+159XT,
27XPU+59XPU+159XPU,0
Enable 27XT, 59XT, or 159XT to log and trigger fault recording.
EXIT;Y Exit and save settings.
Step 2: Using
Table 13-53 as a guide, transmit the first row of setting commands (highest 27X PU,
lowest 59XPU/159XPU) to the relay.
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