GE Industrial Solutions Entellisys 4.0 System User Manual - Manual (Page 248)

Alarms and events 248
A
Voltage Below Phase Loss Alarm
Blocking Voltage The voltages on all three phases have
dropped below the alarm only phase loss
blocking voltage threshold.
Voltage Above Phase Loss
Alarm Blocking Voltage The voltage on at least one of the three
phases has exceeded the alarm only phase
loss blocking voltage threshold.
Pickup Phase Loss Phase loss relay has entered pickup
Breaker Trip Phase Loss Phase loss relay has operated
Dropout Phase Loss Phase loss relay has dropped out of pickup
Voltage Below Phase Loss
Blocking Voltage The voltages on all three phases have
dropped below the phase loss blocking
voltage threshold.
Voltage Above Phase Loss
Blocking Voltage The voltage on at least one of the three
phases has exceeded the phase loss blocking
voltage threshold.
Relays - High Current
Alarm Pickup High Current High current relay has entered pickup
Alarm High Current High current relay has operated
Alarm Dropout High Current High current relay has dropped out of pickup
Relays - Frequency and Reverse Power
Alarm Pickup Reverse Power Alarm only reverse power relay has entered
pickup
Alarm Reverse Power Alarm only reverse power relay has operated
Alarm Dropout Reverse Power Alarm only reverse power relay has dropped
out of pickup
Pickup Reverse Power Reverse power relay has entered pickup
Breaker Trip Reverse Power Reverse power relay has operated
Dropout Reverse Power Reverse power relay has dropped out of
pickup
Alarm Pickup Underfrequency Alarm only underfrequency relay has entered
pickup
Alarm Underfrequency Alarm only underfrequency relay has
operated
Alarm Dropout Underfrequency Alarm only underfrequency relay has
dropped out of pickup
Table A-2 Sequence of events description and troubleshooting guide
Event Description Notes and Troubleshooting tips