GE Industrial Solutions Entellisys 4.0 System User Manual User 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