Navigate The Menus; Read The Measured And Calculated Function Values - ABB REL 551 2.5 Operator's Manual

Protectit line differential protection terminal
Hide thumbs Also See for REL 551 2.5:
Table of Contents

Advertisement




Read the measured and calculated
function values
5HDG WKH PHDVXUHG DQG FDOFXODWHG IXQFWLRQ YDOXHV
9LHZ WKH FDOFXODWHG GLIIHUHQWLDO YDOXHV
This procedure describes how to read calculated differential data.
3URFHGXUH

9LHZ WKH OLVW RI DYDLODEOH GLIIHUHQWLDO GDWD
Navigate the menus to:
6HUYLFH5HSRUW
)XQFWLRQV
'LIIHUHQWLDO
'LII9DOXHV

6FUROO WKH OLVW WR YLHZ HDFK YDOXH
Use the /HIW and/or 5LJKW arrow buttons to scroll between values.
&DOFXODWHG GLIIHUHQWLDO YDOXHV
Path in local HMI: ServiceReport/Functions/Differential/DiffValues
7DEOH  &DOFXODWHG GLIIHUHQWLDO YDOXHV
9LHZHG GDWD GHIDXOW ODEHOV XVHG GDWD LV
H[DPSOH YDOXHV
IDiffL1=
0.003 A
IBiasL1=
0.734 A
IDiffL2=
0.004 A
9LHZ WKH VHUYLFH UHSRUW
'LIIHUHQWLDO YDOXH
Measured actual value of differential current in
phase L1
The highest value of Bias currents in phase L1
or 1/2 of Bias current in L2 or 1/2 of Bias current
in L3
max [(I
L1 or 0,5xI
L2 or 0,5I
bias
bias
Measured actual value of differential current in
phase L2
&KDSWHU 
L3)]
bias
55

Advertisement

Table of Contents
loading

Table of Contents