Siemens 7VK512

/PERATING INSTRUCTIONS6+
6

#
' #
 2!2 4 !#4
 S
!CTION TIME FOR 2!2 FIRST !2 SHOT IF TRIP SIGNAL
IS GIVEN AFTER THIS TIME !2 IS BLOCKED
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
AND 0
 S
 S
 2!2 4 0/,
 S
$EAD TIME FOR FIRST THREE POLE 2!2 CYCLE
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
 S
 S
 2!2 4 0/,
 S
$EAD TIME FOR FIRST !2 CYCLE 2!2 SINGLE POLE
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
 S
 S
 %6&2%#/'
"9 42)0 #/--!.$
"9 &!5,4 $%4%#
2ECOGNITION OF EVOLVING FAULTS ONLY WITH SINGLE
POLE
!2
"9 42)0 #/--!.$
FAULTS DURING SINGLE POLE
DEAD TIME ARE RECOGNIZED AS
EVOLVING FAULTS ONLY WHEN THE
RELAY TRIPS
"9 &!5,4 $%4%#TION
EACH FAULT DETECTION DURING
SINGLE
POLE DEAD TIME IS REC
OGNIZED AS AN EVOLVING FAULT
 %6&",/#+
!,7!93
.%6%2
4REATMENT OF EVOLVING FAULTS ONLY WITH POLE !2
EACH EVOLVING FAULT RESULTS IN FINAL THREE POLE TRIP
RECLOSURE IS BLOCKED
NO BLOCKING OF RECLOSURE IN THE CASE OF EVOLVING
FAULTS A CHANGE FROM SINGLE
POLE !2 TO THREE
POLE !2 OCCURS WHEN PERMITTED
BEFORE EXPIRY OF 4 $)3#2 A CHANGE TO THREE
POLE !2 WHEN PERMITTED OCCURS
AFTER EXPIRY OF 4
$)3#2 RECLOSURE IS BLOCKED
4 $)3#2
 4 $)3#2
 S
$ISCRIMINATION TIME FOR EVOLVING FAULTS ONLY WITH
SINGLE
POLE !2
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
 S
 S
&OR $!2 FURTHER AUTO RECLOSE CYCLES SEVERAL PRO
GRAMS ARE POSSIBLE ADDRESS  $!2 CAN BE EX
CLUDED $!2 02/'  ./ $!2 $!2 CAN BE PER
MITTED ALSO IF NO 2!2 HAS BEEN PRECEDED $!2
02/'  $!2 7)4(/54 2!2 $!2 CAN BE PER
MITTED ONLY AFTER AN UNSUCCESSFUL 2!2 $!2 02/'
 $!2 !&4%2 2!2 $!2 IS ALWAYS THREE
POLE
-ULTIPLE AUTO
RECLOSURE WITH LONGER THREE POLE
DEAD TIMES ARE ONLY PERMITTED IN NETWORKS IN WHICH
NO STABILITY PROBLEMS ARE TO BE EXPECTED FOR EX
AMPLE DUE TO A HIGH DEGREE OF MESHING OR IN RADIAL
NETWORKS OR IF SYNCHRO CHECK IS USED REFER TO 3EC
TION 