ABB Relion 650 Series Applications Manual page 229

1MRK 505 287-UUS B
Section 15
15.1 Self supervision with internal event list
15.1.1 Identification
Function description
Internal error signal
Internal event list
15.1.2 Application
The protection and control IEDs have many functions included . Self supervision with internal
event list (SELFSUPEVLST) and internal error signals (INTERRSIG) function provide supervision of
the IED. The fault signals make it easier to analyze and locate a fault.
Both hardware and software supervision is included and it is also possible to indicate possible
faults through a hardware contact on the power supply module and/or through the software
communication.
Internal events are generated by the built-in supervisory functions. The supervisory functions
supervise the status of the various modules in the IED and, in case of failure, a corresponding
event is generated. Similarly, when the failure is corrected, a corresponding event is generated.
Apart from the built-in supervision of the various modules, events are also generated when the
status changes for the:
• built-in real time clock (in operation/out of order).
• external time synchronization (in operation/out of order).
• Change lock (on/off)
Events are also generated:
• whenever any setting in the IED is changed.
The internal events are time tagged with a resolution of 1 ms and stored in a list. The list can store
up to 40 events. The list is based on the FIFO principle, that is, when it is full, the oldest event is
overwritten. The list can be cleared via the local HMI .
The list of internal events provides valuable information, which can be used during commissioning
and fault tracing.
Busbar protection REB650
Application manual
Basic IED functions
IEC 61850
identification
INTERRSIG
SELFSUPEVLST
The event list is updated every 10s hence, an event will not be visible in the event
list as soon as it is created.
© Copyright 2013 ABB. All rights reserved
IEC 60617 ANSI/IEEE C37.2
identification device number
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Section 15
Basic IED functions
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