Authority Status Athstat; Introduction; Principle Of Operation - ABB Relion 670 Series Technical Reference Manual

Section 4
Basic IED functions
Table 54: 3PHSUM Non group settings (basic)
Name Values (Range)
SummationType Group1+Group2
Group1-Group2
Group2-Group1
-(Group1+Group2)
DFTReference InternalDFTRef
AdDFTRefCh1
External DFT ref
Table 55: 3PHSUM Non group settings (advanced)
Name Values (Range)
FreqMeasMinVal 5 - 200
VBase 0.05 - 2000.00
4.14
4.14.1
4.14.2
116
Unit Step
- -
- -
Unit Step
% 1
kV 0.05

Authority status ATHSTAT

Introduction

Authority status (ATHSTAT) function is an indication function block for user log-on
activity.

Principle of operation

Authority status (ATHSTAT) function informs about two events related to the IED and
the user authorization:
• the fact that at least one user has tried to log on wrongly into the IED and it was
blocked (the output USRBLKED)
• the fact that at least one user is logged on (the output LOGGEDON)
Whenever one of the two events occurs, the corresponding output (USRBLKED or
LOGGEDON) is activated. The output can for example, be connected on Event
(EVENT) function block for LON/SPA.The signals are also available on IEC 61850
station bus.
Default Description
Group1+Group2 Summation type
InternalDFTRef DFT reference
Default Description
10 Magnitude limit for frequency calculation in %
of Vbase
400.00 Base voltage
1MRK505222-UUS C
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