Fusesaver
| Installation and operation manual
20
6 Maintenance
The Fusesaver device has no user-maintainable or serviceable
elements. Disassembly of the Fusesaver device is not required
and voids the Siemens warranty.
When configuring the line, it is recommended to use a new “Line Name”
or add a revision to the line name that a new event file is created.
If the same line name is used, it is likely that the event file gets corrupted.
Alternatively, after downloading the previous event file, this file can be
renamed before configuring the Fusesavers.
6.4 Fusesaver replacement
Typically a Fusesaver would only need replacement if it has exceeded its electrical
life or has had an internal failure.
If the vacuum interrupter is worn out
the Fusesaver will need replacement.
The wear of the vacuum interrupter is
calculated by the Fusesaver micro-
processor and reported through the
Siemens Connect PC application.
In case of Fusesaver failure, the
device should be removed from
service and returned to the factory
for investigation.
When a replacement of a single Fusesaver
from a multi-phase installation is
required, the user should follow these
steps:
A. Wirelessly connect to the
Fusesaver’s in the line using the
“Operate an Existing Installation”
tab of the Siemens Connect PC
application and download the event
log if possible.
B. Dismount the Fusesaver to be
replaced using the reverse process
to installation as described in
section 4.2. Remove the
communications module from the
affected Fusesaver.
C. Wirelessly connect to the remaining
Fusesaver’s in the line using the
“Change an existing installation” tab
of the Siemens Connect PC
application and unconfigure the
Fusesavers.
D. Install the replacement
Fusesaver according to
instructions in section 4.2.
E. Wirelessly connect to ALL
Fusesaver’s in the line using the
“Setup a new installation” tab of the
Siemens Connect PC application
and configure the Fusesavers.
Stored electrical energy inside Fusesaver
The Fusesaver contains stored electrical energy in
capacitors inside the unit. These capacitors could
have voltages of 170 V dc. Maintenance should be
performed only by factory approved Siemens
personnel.
The use of unauthorized parts in the repair of the
equipment or tampering by unqualified personnel
may result in dangerous conditions which could
cause death, severe injury, or equipment damage.
