Electrical Inspection - Siemens SIPROTEC 5 Manual

First Steps

1.4 Electrical Inspection

1.4 Electrical Inspection
Device Protection
!
DANGER
Danger when connecting the SIPROTEC 5 device
Noncompliance with the safety notes will result in death, severe injury or considerable material
damage.
The device must be situated in the operating area for at least 2 hours before you connect it to the
²
power supply for the first time. This prevents condensed water from forming in the device.
If the device has been in storage for more than 2 years, connect it to an auxiliary voltage for 1 to
²
2 days. This will cause the electrolytic capacitors to form on the printed circuit board assemblies again.
Perform the electrical inspection.
²
Activating the Battery
NOTE
i i
The battery is covered by a protective film, which also prevents premature discharge.
The battery compartment is located on the rear of the base module. You do not have to take the battery
out of the battery compartment in order to remove the protective film.
Pull out the battery compartment including the battery.
²
Remove the protective film from the battery by simply pulling on the film tab.
²
Push the battery compartment including the battery back in again.
²
Grounding a Device
The SIPROTEC 5 devices are protection class I equipment must be connected with the system ground prior to
commissioning.
² Ground each module with solid low-impedance system grounding (cross-section ≥ 4.0 mm
(≥ 0.0062 in
In order to ensure the electromagnetic compatibility (EMC) of the device, connect the protective
²
grounding terminals of the modules to each other in series connection. Use the double protective
grounding terminals of the individual modules for this purpose.
Connect the protective conductor of the protection device (connected modules) to the protective
²
grounding terminal of the installation (for example control cabinet) with a single connection to the base
module of the protection device.
Connecting a Device
Connect all cables and lines. Use the connection diagrams in the Hardware Manual and Device Manual.
²
Tighten the terminal screws to the prescribed torques .
²
Grounding an On-Site Operation Panel
Join several on-site operation panels to one another with firm contact.
²
Siemens recommends the use of contact washers on painted metal mounting walls. If the mounting wall
is not metallic, place a metal layer, for example a metal sheet, between the mounting wall and the on-
site operation panels. Then connect this sheet to the system grounding.
22
2 ), grounding area ≥ M4, torque: at least 1.2 Nm).
2
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-C, Edition 08.2020