Siemens 7VK512

/PERATING INSTRUCTIONS6+
6

#
' #
 3ETTINGS FOR SYNCHRONISM AND VOLTAGE CHECK ADDRESS BLOCK 
3YNCHRONISM AN VOLTAGE CHECK FUNCTION IS EFFECTIVE
ONLY IF CONFIGURED AS %8)34 UNDER ADDRESS  RE
FER TO 3ECTION 
$IFFERENT INTERROGATION CONDITIONS CAN BE PARAMETER
IZED FOR AUTOMATIC RECLOSURE ON ONE HAND AND FOR
MANUAL CLOSURE ON THE OTHER HAND
4HE GENERAL LIMIT VALUES FOR CLOSURE ARE SET UNDER AD
DRESSES  TO  !DDITIONALLY ADDRESSES 
TO  ARE RELEVANT FOR AUTOMATIC RECLOSURE AD
DRESSES  TO  ARE RELEVANT FOR MANUAL CLO
SURE
4HE COMPLETE SYNCHRONISM AND VOLTAGE CHECK FUNC
TION IS SWITCHED /&& OR /. UNDER ADDRESS 
)F SYNCHRONISM CHECK FUNCTION IS SWITCHED
OFF ADDRESS  EACH MANUAL OR AUTOMAT
IC CLOSURE IS CARRIED OUT WITHOUT SYNCHRO
NISM CHECK

7ARNING
4HE VOLTAGE BELOW WHICH THE LINE OR BUS BAR IS RE
GARDED SAFELY AS DEAD IS SET UNDER ADDRESS 
5 FOR DEAD LINE OR DEAD BUS CHECK 3ETTING IS IN
VOLTS SECONDARY DEPENDENT OF THE CONNECTION OF THE
VOLTAGES PHASE
PHASE OR PHASE EARTH THE PHA
SE
PHASE OR PHASE EARTH VOLTAGE IS DECISIVE
4HE VOLTAGE ABOVE WHICH THE LINE OR BUS
BAR IS RE
GARDED SAFELY AS LIVE IS SET UNDER ADDRESS  5
FOR LIVE LINE OR LIVE BUS CHECK )T MUST BE SET BELOW
THE MINIMUM OPERATING VOLTAGE UNDER NORMAL CONDI
TIONS 3ETTING IS IN VOLTS SECONDARY DEPENDENT OF THE
CONNECTION OF THE VOLTAGES PHASE
PHASE OR PHA
SE
EARTH THE PHASE PHASE OR PHASE EARTH VOLT
AGE IS DECISIVE
4HE PERMISSIBLE MAGNITUDE DIFFERENCE 5 BETWEEN
THE VOLTAGES IS SET UNDER ADDRESS  $%,4! 5
3ETTING IS IN VOLTS SECONDARY DEPENDENT OF THE CON
NECTION OF THE VOLTAGES PHASE
PHASE OR PHASE
EARTH THE PHASE PHASE OR PHASE EARTH VOLTAGE IS
DECISIVE
4HE PERMISSIBLE FREQUENCY DIFFERENCE F BETWEEN
THE VOLTAGES IS SET UNDER ADDRESS  $%,4! F
4HE PERMISSIBLE PHASE ANGLE DIFFERENCE  BETWEEN
THE VOLTAGES IS SET UNDER ADDRESS  $%,4! 0()
 #(%#+
39.#(2/.)3-
"EGINNING OF THE BLOCK 3YNCHRONISM AND VOLTAGE
CHECK
 39.# #(%#+
/.
/&&
3YNCHRONISM AND VOLTAGE CHECK FUNCTION COMPLETE IS
/. SWITCHED ON
/FF SWITCHED OFF
6OLTAGE MAGNITUDE BELOW WHICH THE LINE OR BUS
BAR
CAN BE REGARDED AS DEAD PHASE
PHASE OR PHASE
EARTH IN 6
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
 5
6
6
 6
6OLTAGE MAGNITUDE ABOVE WHICH THE LINE OR BUS
BAR
CAN BE REGARDED AS LIVE PHASE
PHASE OR PHASE
EARTH IN 6
3MALLEST SETTING VALUE
,ARGEST SETTING VALUE
 5
 6
 6
 6