Preparing For Operation; Assembly And Connection; Models 7Sd600K-Kbkkk And -Kdkkk For Panel Surface Mounting; Model 7Sd600K-Kekkk For Panel Flush Mounting Or Cubicle Mounting - Siemens SIPROTEC 7SD600 System Manual

5
Preparation instructions
Numerical line differential protection SIPROTEC 7SD600 V3.0
5.2

Preparing for operation

Please observe the operation requirements as set out
in VDE 0100/ 5.73 and VDE 0105 Part 1/7.83.
Caution
The modules of digital protection equip
ment contain CMOS circuits. Never re
move or plug in individual modules
when live. Always handle modules in
such a manner that there is no risk of
damage as a result of static discharges.
Always observe the ESD regulations
(for Electrostatic SensitiveDevices)
when handling individual modules.
There is no risk when the devices are already instal
led.
5.2.1

Assembly and connection

5.2.1.1 Models 7SD600K-KBKKK and -KDKKK for
panel surface mounting
D Secure the device to the control panel with 4
screws. In the case of model -KBKKK, ensure that
it has sufficient spacing to the adjacent devices.
For dimensioned drawing, see Figure 2.1
(on page 2 - 2).
D Affix sturdy, low-resistance and low-inductance
system earthing to the bottom earthing surface
with at least one M4 screw. Earthing strips to
DIN 72333 Form A, e.g. order no. 15284 from the
company Druseidt in Remscheid, Germany are
suited for this purpose.
D When establishing the connections via the screw
terminals, observe the designation of the individual
connections, the permissible cross-sections and
stud torques (see section 2.2). Only use copper
wires!
D The shield of the serial RS485 interface must be
earthed.
5 - 2
System manual Order no. E50417-G1176-C069-A1
5.2.1.2 Model 7SD600K-KEKKK for panel flush
mounting or cubicle mounting
D Push the top and bottom covers of the front cover
back to gain access to four slots located in the
bracket.
D Push the device into the control panel cutout or
cabinet frame and secure with the four fastening
screws. For dimensioned drawing, see Figure 2.3
(on page 2 - 4).
D Affix sturdy, low-resistance and low-inductance
system earthing to the rear earthing surface with
one of the two M4 screws. Earthing strips to
DIN72333 Form A, e.g. order no. 15284 from the
company Druseidt in Remscheid, Germany are
suited for this purpose.
D Establish connections using the plug-in or screw
terminals of the connector module on the housing.
Always observe the designation of the individual
connections, the permissible cross-sections and
stud torques (see section2.2). Only use copper
wires! Where possible, screw terminals should be
used; the plug-in terminals require special tools
and can only be used for the system wiring if a
reliable strain relief is installed.
D The shield of the serial RS485 interface must be
earthed (if used).
5.2.2

Checking the specified ratings

It must be checked that the specified ratings of the
device match the system data. This particularly ap
plies to the nominal auxiliary supply voltage and the
nominal currents of summation transformer
4AM4930.
Siemens AG January 1999