A.2.8 protection relay events – GE Industrial Solutions Entellisys 5.0 User Manual User Manual
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Alarms and events
272
A
A.2.8 Protection Relay Events
Attention IO Card Detection
Mismatch Found 0 of 2
CPU expected 2 discrete I/O cards, but detected
none
Contact GE Post Sales Service (see
Attention IO Card Detection
Mismatch Found 1 of 0
CPU expected no discrete I/O cards, but detected 1 Contact GE Post Sales Service (see
Attention IO Card Detection
Mismatch Found 1 of 2
CPU expected 2 discrete I/O cards, but detected 1
Contact GE Post Sales Service (see
Attention IO Card Detection
Mismatch Found 2 of 0
CPU expected no discrete I/O cards, but detected 2 Contact GE Post Sales Service (see
Attention IO Card Detection
Mismatch Found 2 of 1
CPU expected 1 discrete I/O card, but detected 2
Contact GE Post Sales Service (see
Table A-8 Breaker Status Events
Event
Description
Notes and Troubleshooting tips
Table A-9 Protection Relay Events
Event
Description
Notes and Troubleshooting tips
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