Siemens SIPROTEC 7SJ531 - Page 42

4ECHNICAL DATA3*
6
#
' #

 %ARTH FAULT DETECTION
$ISPLACEMENT VOLTAGE DETECTION FOR ALL EARTH FAULTS
DISPLACEMENT VOLTAGE MEASURED 5
E
 MEAS  6 TO  6 STEPS  6
DISPLACEMENT VOLTAGE CALCULATED 5
E
 CAL  6 TO  6 STEPS  6
-EASUREMENT TIME APPROX  MS
DELAY TIME 4
%&  S TO  S STEPS  S
OR 0
ADDITIONAL TRIP DELAY TIME 4
5%  S TO  S STEPS  S
OR 0 INEFFECTIVE
2ESET VALUE  OR PICK
UP VALUE  6
MEASURING TOLERANCE   OF SET VALUE OROFMEASURED VOLTAGE
PHASE
EARTH
TIME TOLERANCES  OF SET VALUE OR  MS
4HE SET TIMES ARE PURE DELAY TIMES
&AULTED PHASE DETERMINATION
MEASURING PRINCIPLE VOLTAGE MEASUREMENT PHASE TO EARTH
5 FAULTED PHASE  6 TO  6 STEPS  6
5 UNFAULTED PHASES  6 TO  6 STEPS  6
-EASURING TOLERANCE   OF SET VALUE OR  6
%ARTH CURRENT DETECTION

 FOR ALL EARTH FAULTS
(IGH
LEVEL EARTH CURRENT PICK UP )
%%
  ! TO  ! STEPS  !
$ELAY TIME 4
)%%
 S TO  S STEPS  S
OR 0 INEFFECTIVE
,OW
LEVEL EARTH CURRENT PICK UP )
%%
 DEFINITE TIME  ! TO  ! STEPS  !
$ELAY TIME DEFINITE 4
)%%
 S TO  S STEPS  S
OR 0 INEFFECTIVE
-EASUREMENT TIME DEFINITE TIME APPROX  MS NON
DIRECTIONAL
APPROX  MS DIRECTIONAL
,OW
LEVEL EARTH CURRENT PICK UP )
%%P
INVERSE TIME  ! TO  ! STEPS  !
4IME MULTIPLIER INVERSE TIME 4
)%%0
 TO  STEPS 
OR 0 INEFFECTIVE

 ONLY FOR MODEL 3* J JJJJ JJJJ
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