Setting the short circuit trip on the GE 469-P5-LO-A20-E Relay has to be set above the maximum locked rotor current but also below the actual short circuit current for the fuses on the relay. The maximum locked rotor current is 630 percent full load current or 6.3 x full load current. Keep in mind if the locked rotor current is set to 7 x full load current, there will be a time delay that will have tripping and may have asymmetrical starting currents and a direct current off set. If the setting at 7 x the full load current limits the starting capability, then setting the S/C to a higher level to 11 x the full load current (1.7 x 6.3 = 11.7) to over ride the condition.

There is no information to alert for a ground fault setting, so unfortunately a ground fault current is unavailable. The fault current should be assumed at 10 Amps or 10/50 = 0.2 x the current transformer and have no time delays.

An unbalanced alarm or trip are in the settings that are determinded by the examining of the motor application and design. The unbalanced alarm is set at 10 percent with a 10 second delay that will help with alarm and the trip can be set at 25 percent with a 5 second delay to help with the tripping.