Real Time Clock - ABB REF601 Applications Manual

1MDU07212-YN Rev. A
2.4.4
REF601 / REJ601
Application Manual
Table 3: List of event types and related description
Sr.
Event type Description
No.
1 Power supply Unit ready contact activation will be stored
presence as an event. This unit ready contact is
activated when power supply is on and no
internal relay fault detected
2 Trip circuit When trip circuit becomes faulty, an event
supervision of trip circuit faulty will be recorded.
3 Setting Settings (I>,I>>,I>>>,Io>,Io>> and
parameter t>,t>>,t>>>,to>,to>>) alteration will be
change captured as an event without setting value.
4 Protection start Start event by I>,I>> OR I>>> will be
captured as single event i.e. Phase start
Start event by Io> OR Io>> will be stored as
single event i.e. Earth start.
5 Protection trip In the event of Tripping, which protection
stage (I>, I>>, I>>>, Io> and Io>>) caused
trip will be captured as an event
information.
6 IRF "IRF" – internal relay fault shall be captured
as an event.
7 Breaker open When breaker open operated
8 Breaker close When breaker close operated
9 Remote trip When remotely trip command issued
10 Reset When reset of protection trip, LEDs and
screen done
11 Blocking When blocking by binary input
12 Breaker When breaker open, close or maintenance
position position sensed by associated binary input
13 Memory read In case unable to read Event from eeprom,
fail a message i.e."Memory Read Fail" will be
displayed for that particular event

Real Time Clock

IED comes with a real time clock with user settable date and time. Date can be set
in "DD/MM/YY" format and time can be set in "HH:MM:SEC" format. The time
stamping have 1 ms resolution. RTC is used for time stamping the event logs and
as well as fault records . In case of power failure RTC will have a stored energy
backup for around 48 hrs. at ambient temperature when stored energy element is
fully charged. Initial time setting is "01/01/2011" and "00:00:00:000".
Section 2
REF601/REJ601 overview
Data
considered
Unit Ready
TCS fault
Any from –
I>, I>>, I>>>,
Io>, Io>>, t>,
t>>,t>>>, to>,
to>>
Start of Phase
Start of Earth
Any from –
I>, I>>, I>>>,
Io>, Io>>
IRF codes
Breaker Open
Breaker Close
Remote Trip
Reset
BI Blocking
CB POS CLS
CB POS OPN
CB Maint
Memory Read
Fail
11