)NSTALLATION INSTRUCTIONS
3$
6
# ' #
3ETTINGS FOR FAULT RECORDING
ADDRESS BLOCK
4HE LINE DIFFERENTIAL PROTECTION RELAY IS EQUIPPED WITH
A FAULT DATA STORE SEE 3ECTION $ISTINCTION
MUST BE MADE BETWEEN THE REFERENCE INSTANT AND
THE STORAGE CRITERION ADDRESS .ORMALLY THE
GENERAL FAULT DETECTION SIGNAL OF THE PROTECTION IS THE
REFERENCE INSTANT 4HE STORAGE CRITERION CAN BE THE
GENERAL FAULT DETECTION TOO
34/2!'% "9 &$
OR THE
TRIP COMMAND
34/2!'% "9 42)0
!LTERNATIVELY THE
TRIP COMMAND CAN BE SELECTED AS REFERENCE INSTANT
34!24 7)4( 42)0
IN THIS CASE THE TRIP COMMAND IS
THE STORAGE CRITERION TOO &OR DIFFERENTIAL PROTECTION
FAULT DETECTION AND TRIP COMMAND ARE THE SAME IN
STANT THIS DISTINCTION IS USEFUL ONLY FOR OVERCURRENT
PROTECTION
4HE ACTUAL RECORDING TIME STARTS WITH THE PRETRIGGER
TIME 4 02% ADDRESS BEFORE THE REFERENCE IN
STANT AND ENDS WITH THE POSTFAULT TIME 4 0/34 AD
DRESS AFTER THE RECORDING CRITERION HAS DISAP
PEARED 4HE PERMISSIBLE RECORDING TIME FOR EACH RE
CORD IS SET UNDER ADDRESS !LTOGETHER S ARE
AVAILABLE FOR FAULT RECORDING )N THIS TIME RANGE UP TO
FAULT RECORDS CAN BE STORED
.OTE
4HE MAX TIMES ARE REFERRED TO A SYSTEM FRE
QUENCY OF (Z 4HEY ARE TO BE MATCHED ACCORD
INGLY FOR DIFFERENT FREQUENCY
$ATA STORAGE CAN ALSO BE INITIATED VIA A BINARY INPUT
OR BY OPERATOR ACTION FROM THE MEMBRANE KEYBOARD
ON THE FRONT OF THE RELAY OR VIA THE OPERATING INTERFACE
4HE STORAGE IS TRIGGERED DYNAMICALLY IN THESE CASES
4HE LENGTH OF THE DATA STORAGE IS DETERMINED BY THE
SETTINGS IN ADDRESSES AND PRETRIGGER
TIME AND POSTFAULT TIME ARE ADDITIVE TO THE SET VAL
UES )F THE STORAGE TIME FOR START VIA BINARY INPUT IS SET
TO
0
THEN THE STORAGE TIME ENDS AFTER DEENERGIZA
TION OF THE BINARY INPUT STATICALLY BUT NOT AFTER 4
-!8 ADDRESS
& ! 5 , 4
2 % # / 2 $ ) . ' 3
"EGINNING OF BLOCK &AULT RECORDINGS
) . ) 4 ) ! 4 ) / .
3 4 / 2 ! ' %
" 9
& $
3 4 / 2 ! ' %
" 9
4 2 ) 0
$ATA STORAGE IS INITIATED
FAULT DETECTION IS REFERENCE INSTANT
FAULT DETECTION IS STORAGE CRITERION
FAULT DETECTION IS REFERENCE INSTANT
TRIP COMMAND IS STORAGE CRITERION
TRIP COMMAND IS REFERENCE INSTANT
TRIP COMMAND IS STORAGE CRITERION
3 4 ! 2 4
7 ) 4 (
4 2 ) 0
4
- ! 8
S
-AXIMUM TIME PERIOD OF A FAULT RECORD
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
S
S
4
0 2 %
S
0RETRIGGER TIME BEFORE THE REFERENCE INSTANT
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
S
S
4
0 / 3 4
S
0OSTFAULT TIME AFTER THE STORAGE CRITERION DISAPPEARS
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
S
S
Содержание 7SD502
Страница 148: ... PPENDIX 3 6 PPENDIX ENERAL DIAGRAMS ONNECTION DIAGRAMS 4ABLES ...
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