$ESIGN3*
6
#
' #
$ESIGN
!RRANGEMENTS
!LL PROTECTION AND CONTROL FUNCTIONS INCLUDING DCDC
CONVERTER ARE ACCOMMODATED ON THREE PLUG
IN
MODULES OF $OUBLE %UROPA &ORMAT 4HE MODULES
ARE INSTALLED IN A HOUSING 80 INTERCONNECTED BY
MEANS OF A RIBBON CABLE AND PROVIDED WITH A COM
MON FRONT PLATE 4HE FOLLOWING TYPES OF HOUSING CAN
BE DELIVERED
3*J J"JJJ IN HOUSING 80 FOR
PANEL SURFACE MOUNTING
4HE HOUSING HAS FULL SHEET
METAL COVERS AS WELL
AS A REMOVABLE FRONT COVER MADE OF PLASTIC PRO
FILES
)NSIDE THE CASING THERE ARE RAIL MATS FOR MOUNTING
AND FIXING OF THE PRINTED CIRCUIT BOARDS 4HE INNER
PART OF THE CASING IS FREE FROM ENAMEL AND THUS
FUNCTIONS AS A LARGE CONTACT PLANE WITH SOLID ELEC
TRICAL CONDUCTIVITY FOR THE EARTHING BLADES OF THE
MODULES %ARTHING SCREWS HAVE BEEN PROVIDED ON
THE LEFT HAND SIDE OF THE HOUSING !DDITIONALLY TER
MINAL IS CONNECTED TO THE CASE
!LL EXTERNAL SIGNALS ARE CONNECTED TO SCREWED
TERMINALS WHICH ARE ARRANGED OVER CUT
OUTS ON
THE TOP AND BOTTOM COVERS 4HE TERMINALS ARE
NUMBERED CONSECUTIVELY FROM LEFT TO RIGHT AT THE
BOTTOM AND TOP
4HE HEAVY DUTY CURRENT PLUG CONNECTORS PROVIDE
AUTOMATIC SHORTING OF THE CT CIRCUITS WHENEVER
THE MODULE IS WITHDRAWN 4HIS DOES NOT RELEASE
FROM THE CARE TO BE TAKEN WHEN CT SECONDARY CIR
CUITS ARE CONCERNED
4HE OPTIONAL INTERFACE TO A CENTRAL CONTROL AND
STORAGE UNIT 3*J
JJJJJ J#JJ IS LED TO A
MODULE WITH &
3-! CONNECTORS FOR OPTICAL FIBRE
CONNECTION WITH NM WAVE LENGTH
4HE DEGREE OF PROTECTION FOR THE HOUSING IS )0
FOR THE TERMINALS )0 &OR DIMENSIONS PLEASE
REFER TO &IGURE
3*J J%JJJ IN HOUSING 80 FOR
PANEL FLUSH MOUNTING OR CUBICLE INSTALLATION
4HE HOUSING IS BUILT OF A TUBE OF 'ERMAN SILVER WITH
A DEVICE
SPECIFIC REAR PLATE A FRONT PLATE AND A
REMOVABLE FIXED BY SCREWS FRONT COVER MADE OF
PLASTIC PROFILES
)NSIDE THE CASING THERE ARE RAIL MATS FOR MOUNTING
AND FIXING OF THE PRINTED CIRCUIT BOARDS 4HE INNER
PART OF THE CASING IS FREE FROM ENAMEL AND THUS
FUNCTIONS AS A LARGE CONTACT PLANE WITH SOLID ELEC
TRICAL CONDUCTIVITY FOR THE EARTHING BLADES OF THE
MODULES %ARTHING SCREWS HAVE BEEN PROVIDED ON
THE REAR WALL OF THE HOUSING
!LL EXTERNAL SIGNALS ARE CONNECTED TO CONNECTOR
MODULES WHICH ARE MOUNTED ON THE REAR COVER
&OR EACH ELECTRICAL CONNECTION ONE SCREWED TER
MINAL AND ONE PARALLEL SNAP
IN TERMINAL ARE PRO
VIDED &OR FIELD WIRING THE USE OF THE SCREWED TER
MINALS IS RECOMMENDED SNAP
IN CONNECTION RE
QUIRES SPECIAL TOOLS #ARE MUST BE TAKEN TO ENSURE
PROPER STRAIN RELIEF AND THE PERMISSIBLE BENDING
RADIUS
4HE HEAVY DUTY CURRENT PLUG CONNECTORS PROVIDE
AUTOMATIC SHORTING OF THE CT CIRCUITS WHENEVER
THE MODULE IS WITHDRAWN 4HIS DOES NOT RELEASE
FROM THE CARE TO BE TAKEN WHEN CT SECONDARY CIR
CUITS ARE CONCERNED
4HE OPTIONAL INTERFACE TO A CENTRAL CONTROL AND
STORAGE UNIT 3*J
JJJJJ J#JJ IS LED TO A
MODULE WITH &
3-! CONNECTORS FOR OPTICAL FIBRE
CONNECTION WITH NM WAVE LENGTH
4HE PLUG MODULES ARE LABELLED ACCORDING TO THEIR
MOUNTING POSITION BY MEANS OF A GRID SYSTEM EG
# 4HE INDIVIDUAL CONNECTIONS WITHIN A MODULE
ARE NUMBERED CONSECUTIVELY FROM LEFT TO RIGHT
WHEN VIEWED FROM THE REAR EG # REFER &IG
URE
$EGREE OF PROTECTION FOR THE HOUSING IS )0 FOR
THE TERMINALS )0 &OR DIMENSIONS PLEASE REFER TO
&IGURE
ONLY FOR MODEL 3* J JJJJ JJJJ
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