Basic Ied Functions - ABB Relion 670 Series Product Manual

Busbar protection REB670
Customized
Product version: 1.2

Basic IED functions

IEC 61850
Basic functions included in all products
IntErrorSig
TIME
TimeSynch
ActiveGroup
Test
ChangeLock
TerminalID
Productinfo
MiscBaseCommon
IEDRuntimeComp
RatedFreq
SMBI
SMBO
SMMI
SMAI
Sum3Ph
LocalHMI
LocalHMI
AuthStatus
AuthorityCheck
AccessFTP
SPACommMap
DOSFRNT
DOSOEMAB
DOSOEMCD
3. Differential protection
The function consists of differential protection algorithm,
sensitive differential protection algorithm, check zone
algorithm, open CT algorithm and two supervision algorithms.
Busbar differential protection
This protection function is intended for fast and selective
tripping of faults within protected zone. For each current
input, the CT ratio can be set from the front HMI or via the
parameter-setting tool, PCM600. In this way adaptation to
different CT ratios is provided in the simplest way. The
minimum pick-up value for the differential current is then set
ABB
Function description
Self supervision with internal event list
Time and synchronization error
Time synchronization
Parameter setting groups
Test mode functionality
Change lock function
IED identifiers
Product information
Misc Base Common
IED Runtime Comp
Rated system frequency
Signal Matrix for binary inputs
Signal Matrix for binary outputs
Signal Matrix for mA inputs
Signal Matrix for analog inputs
Summation block 3 phase
Parameter setting function for HMI in PCM600
Local HMI signals
Authority status
Authority check
FTP access with password
SPA communication mapping
Denial of service, frame rate control for front port
Denial of service, frame rate control for OEM port AB
Denial of service, frame rate control for OEM port CD
to give a suitable sensitivity for all internal faults. This setting
is made directly in primary amperes. For busbar protection
applications typical setting value for the minimum differential
operating current is from 50% to 150% of the biggest CT.
The settings can be changed from the front HMI or via the
parameter-setting tool, PCM600.
All current inputs are indirectly provided with a restraint
feature. The operation is based on the well-proven RADSS
percentage restraint stabilization principle, with an extra
stabilization feature to stabilize for very heavy CT saturation.
Stability for external faults is guaranteed if a CT is not
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