)NSTALLATION INSTRUCTIONS
6%
6
# ' #
"INARY INPUT 3OLDER BRIDGE 8
"INARY INPUT 3OLDER BRIDGE 8
"INARY INPUT 3OLDER BRIDGE 8
"INARY INPUT 3OLDER BRIDGE 8
&OR RATED VOLTAGES 6 3OLDER BRIDGES MUST BE FITTED
&OR RATED VOLTAGES 6 3OLDER BRIDGES MAY BE REMOVED
#UT AND BEND ASIDE
8
8
8
8
&IGURE #HECKING FOR CONTROL VOLTAGES FOR BINARY INPUTS TO ON ADDITIONAL MODULE :%! ONLY 6%
#ONNECTIONS
'ENERAL AND CONNECTION DIAGRAMS ARE SHOWN IN !P
PENDIX ! AND " &OR PARALLELING ONE PHASE TO
PHASE VOLTAGE 5
, ,
OF EACH SIDE OF THE BREAKER
MUST BE CONNECTED ! FURTHER PHASE TO PHASE
VOLTAGE 5
, ,
SHOULD BE CONNECTED IF AVAILABLE
4HUS THE DEVICE WILL BE ABLE TO CHECK THE PHASE SE
QUENCE OF THE VOLTAGES 4HE VOLTAGES MAY BE
DERIVED FROM THREE STAR CONNECTED VOLTAGE TRANS
FORMERS 5
, .
5
, .
5
, .
OR FROM TWO PHASE
TO PHASE CONNECTED VOLTAGE TRANSFORMERS 5
, ,
5
, ,
SO CALLED 6 CONNECTION
#ONNECTION TO TWO PHASE TO PHASE VOLTAGES MUST
BE CARRIED OUT AT BOTH SIDES OF THE BREAKER IF USED AT
ALL )N THIS CASE PHASE SEQUENCE CHECK MUST BE SET
EFFECTIVE BOTH SIDES 3ECTION ADDRESSES
AND $IFFERENT CONNECTION FOR THE BOTH SIDES IS
NOT PERMITTED
0HASE ROTATION MUST BE EQUAL AT BOTH SIDES OF THE
BREAKER BOTH CLOCKWISE OR BOTH COUNTER CLOCKWISE
)F THEY ARE DIFFERENT TWO PHASES MUST BE INTER
CHANGED AT ONE SIDE ALREADY IN THE PRIMARY PLANT )T
MUST BE ENSURED THAT AT ALL THREE BREAKER POLES EQUAL
VOLTAGES ARE PRESENT WHEN THE SYSTEMS OR SYSTEM
AND GENERATOR ARE IN SYNCHRONISM %QUAL PHASE RO
TATIONS MUST BE PRESENT ON THE CIRCUIT BREAKER AS WELL
AS AT THE DEVICE
)F SYNCHRONIZING SHOULD BE PERFORMED VIA A UNIT
BLOCK TRANSFORMER THE VOLTAGES MUST BE ADAPTED IN
ACCORDANCE WITH THE VECTOR GROUP OF THE BLOCK TRANS
FORMER #ONNECTION EXAMPLES WITH INTERMEDIATE VOLT
AGE TRANSFORMERS ARE SHOWN IN APPENDIX "
)T IS IMPERATIVE THAT THE VOLTAGES HAVE EQUAL PHASE AT
THE BREAKER POLES WHEN THEY HAVE EQUAL PHASE AT
THE TERMINALS OF THE DEVICE ACCORDING CONNECTION
DIAGRAMS IN APPENDIX "
4HE VOLTAGE TRANSFORMER SECONDARY LEADS MUST BE
INSTALLED IN SUCH A WAY THAT THE CONDUCTORS OF ONE
VOLTAGE TRANSFORMER SET ARE LAID TOGETHER PARTICULARLY
IF THE DEVICE IS CONNECTED TO DIFFERENT PARALLELING LO
CATIONS SWITCH OVER OF THE VOLTAGES 4HEY MUST
ONCE BE EARTHED AT THE VOLTAGE TRANSFORMERS 4HIS IS
TO AVOID INTERFERENCES BY INDUCTIVE OR CAPACITIVE IN
FLUENCES 3TRANDED AND SCREENED CABLES ARE RECOM
MENDED 4HIS IS IN ORDER TO ENSURE THAT PARTICULARLY
IN EXTENDED SUBSTATION EQUAL LONGITUDINAL VOLTAGES
COULD BE INDUCED INTO THE LEADS BUT PRACTICALLY NO
TRANSVERSE VOLTAGE WILL OCCUR
&URTHERMORE THE VOLTAGE TRANSFORMER CABLES MUST
BE SCREENED IN ORDER TO ENSURE PROPER ELECTRO
MAGNETIC COMPATIBILITY AND THE SCREENS MUST BE
EARTHED AT BOTH SIDES
