/PERATING INSTRUCTIONS
3*
6
# ' #
&OR INVERSE TIME OVERCURRENT PROTECTION ONLY
4HE FUNDAMENTAL WAVES OF THE MEASURED CURRENTS
ARE EVALUATED
4HE TRUE RMS VALUES OF THE MEASURED CURRENTS ARE
EVALUATED
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)F THE FUNCTION MODE IS
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ONE OF THREE
INVERSE TIME CHARACTERISTICS DEFINED IN )%#
CAN BE SELECTED ADDRESS
!DDRESSES AND THE FURTHER ARE FOUND ON PAGE
OF THE SUB MENU /6%2#522 $)2%#4)/.!, 0(
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FOR PHASE FAULTS CAN BE
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)F THE FUNCTION MODE IS
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ONE OF THE FOLLOWING EIGHT INVERSE TIME CHARACTERISTICS CAN BE SELECTED
ADDRESS
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#HARACTERISTIC FOR PHASE FAULTS DIRECTIONAL STAGE CAN BE
NORMAL
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7HEN CLOSING THE CIRCUIT BREAKER ONTO A FAULTY LINE
SECTION IT IS IN MOST CASES DESIRABLE TO TRIP THE LINE AS
FAST AS POSSIBLE 7ITH MANUAL CLOSING CONTROL THIS IS
TAKEN CARE OF BY PARAMETERIZATION OF ADDRESS
FOR THE REACTION OF THE RELAY IN CASE OF A FAULT (ERE IT IS
DEFINED WHICH PICK UP VALUE IS EFFECTIVE WITH WHICH
TIME DELAY WHEN THE CIRCUIT BREAKER IS MANUALLY
CLOSED
7HEN THE MANUAL CLOSING COMMAND IS NOT GIVEN BY
THE 3* NEITHER THROUGH THE INTEGRATED CONTROL
NOR VIA THE ,3! INTERFACE BUT DIRECTLY FROM A CONTROL
DISCREPANCY SWITCH THEN THIS COMMAND HAS TO BE
CONNECTED TO A BINARY INPUT OF THE 3* INCLUDING
THE
CORRESPONDING
MARSHALLING
-ANUAL
#LOSE
4HUS THE STAGE FOR -!.#,/3% BECOMES
EFFECTIVE
).%&&%#4)6%
MEANS THAT ALL STAGES OPER
ATE ACCORDING TO THEIR PARAMETERIZATION
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