/PERATING INSTRUCTIONS
6+
6
# ' #
#OMMISSIONING USING PRIMARY TESTS
!LL SECONDARY TESTING SETS AND EQUIPMENT MUST BE
REMOVED 2ECONNECT CURRENT AND VOLTAGE TRANSFORM
ERS &OR TESTING WITH PRIMARY VALUES THE LINE MUST BE
ENERGIZED
0RIMARY TESTS SHALL BE PERFORMED ONLY BY
QUALIFIED PERSONNEL WHICH IS TRAINED IN
COMMISSIONING OF PROTECTION SYSTEMS AND
FAMILIAR WITH THE OPERATION OF THE PROTECTED
OBJECT AS WELL AS THE RULES AND REGULATIONS
SWITCHING EARTHING ETC
7ARNING
-EASURED VOLTAGE CHECKS
#ONNECTIONS TO THE VOLTAGE TRANSFORMERS ARE
CHECKED WITH PRIMARY VALUES /PEN THE LINE ISOLATOR
AND CLOSE THE CIRCUIT BREAKER AS TO &IGURE 4HUS
BOTH VOLTAGE TRANSFORMER SETS RECEIVE THE SAME VOLT
AGE #LOSE THE VOLTAGE TRANSFORMER SECONDARY
MCBS OF BUS BAR AND FEEDER VOLTAGE
4HE VOLTAGES CAN BE READ OFF ON THE DISPLAY IN THE
FRONT OR VIA THE OPERATING INTERFACE IN BLOCK AND
COMPARED WITH THE ACTUAL MEASURED VALUES 4HE
SECONDARY VOLTAGES ADDRESSES AND
MUST BE EQUAL 4HE VALUES FOR
5 ADDRESS
F
ADDRESS AND
ADDRESS MUST BE AL
MOST ZERO ! DEVIATION OF THE LAST INDICATED DIGIT CAN
BE TOLERATED
)F HIGHER DEVIATIONS ARE RECOGNIZED OR EVEN A LARGE
PHASE ANGLE IS INDICATED CHECK AT FIRST THE SETTING OF
ADDRESS AND CORRECT IF NECESSARY &URTHERMORE
AN ERROR CAN BE PRESENT IN THE SECONDARY WIRING OF
THE VOLTAGE TRANSFORMER CIRCUITS #HECK AND CORRECT
THE CONNECTIONS 2EPEAT MEASUREMENT
2EAD OUT THE PRIMARY VOLTAGE VALUES ADDRESSES
AND AND COMPARE WITH THE ACTUAL VALUES
4HESE VALUES ARE RELEVANT ONLY FOR OPERATIONAL MEA
SUREMENT )F DEVIATIONS OCCUR ADDRESSES AND
SHOULD BE CHECKED REFER TO 3ECTION
#HECKING THE VOLTAGE POLARITY
FOR SYNCHRONISM CHECK
4HIS CHECK SHOULD VERIFY THE CORRECT POLARITY OF THE
VOLTAGE TRANSFORMER CONNECTIONS FOR THE SYNCHRO
NISM AND VOLTAGE CHECK FUNCTION 4HE PROTECTIVE
MCBS OF BOTH VOLTAGE TRANSFORMER SECONDARY CIR
CUITS MUST BE CLOSED
/PEN THE CIRCUIT BREAKER
!T FIRST SET THE SYNCHRO CHECK FUNCTION TO THE OVER
RIDE PROGRAM IE ADDRESS /6%22)$%
9%3
3TART SYNCHRONISM CHECK BY ENERGIZING THE BINARY
START TO MEASURE INPUT &.O
3YNC
3TART
4HE SYNCHRO CHECK FUNCTION MUST ISSUE
THE RELEASE COMMAND ANNUNCIATION
3YNC2E
LEASE
&.O
)F NOT CHECK ALL RELEVANT PARAME
TERS ADDRESS 3ECTION AND ADDRESS
3ECTION
.EXT OPEN THE LINE ISOLATOR AND CLOSE THE CIRCUIT
BREAKER AS TO &IGURE 4HUS BOTH VOLTAGE TRANS
FORMER SETS RECEIVE THE SAME VOLTAGE
5
5
,INE
&IGURE -EASURED VOLTAGES FOR SYNCHRONISM
CHECK
3ET THE SYNCHRONISM AND VOLTAGE CHECK FUNCTION TO
THE SYNCHRO CHECK PROGRAM IE ADDRESS
