A.2.8 protection relay events – GE Industrial Solutions Entellisys 5.0 User Manual User Manual

Page 284

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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

How to

contact us on page 2

).

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

How to

contact us on page 2

).

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

How to

contact us on page 2

).

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

How to

contact us on page 2

).

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

How to

contact us on page 2

).

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

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