GE Industrial Solutions Entellisys 4.0 System User Manual - Manual (Page 247)

Alarms and events description and system troubleshooting guide 247
A
Alarm Pickup Undervoltage Alarm only undervoltage relay has entered
pickup
Alarm Undervoltage Alarm only undervoltage relay has operated
Alarm Dropout Undervoltage Alarm only undervoltage relay has dropped
out of pickup
Voltage Below Undervoltage
Alarm Blocking Voltage The voltages on all three phases have
dropped below the alarm only undervoltage
blocking voltage threshold.
Voltage Above Undervoltage
Alarm Blocking Voltage The voltage on at least one of the three
phases has exceeded the alarm only
undervoltage blocking voltage threshold.
Pickup Undervoltage Undervoltage relay has entered pickup
Breaker Trip Undervoltage Undervoltage relay has operated
Dropout Undervoltage Undervoltage relay has dropped out of
pickup
Voltage Below Undervoltage
Blocking Voltage The voltages on all three phases have
dropped below the undervoltage blocking
voltage threshold.
Voltage Above Undervoltage
Blocking Voltage The voltage on at least one of the three
phases has exceeded the undervoltage
blocking voltage threshold.
Alarm Pickup Overvoltage Alarm only overvoltage relay has entered
pickup
Alarm Overvoltage Alarm only overvoltage relay has operated
Alarm Dropout Overvoltage Alarm only overvoltage relay has dropped
out of pickup
Pickup Overvoltage Overvoltage relay has entered pickup
Breaker Trip Overvoltage Overvoltage relay has operated
Dropout Overvoltage Overvoltage relay has dropped out of pickup
Alarm Pickup Phase Loss Alarm only phase loss relay has entered
pickup
Alarm Phase Loss Alarm only phase loss relay has operated
Alarm Dropout Phase Loss Alarm only phase loss relay has dropped out
of pickup
Table A-2 Sequence of events description and troubleshooting guide
Event Description Notes and Troubleshooting tips