Siemens NXAIR M - Page 80

Operating the metering panel
80 NXAIR M 139-2021.9 / 07
NOTICE
Undetected damage
A tripped protection fuse-link can cause hidden damages on the other protection
fuse-links.
Always replace all protection fuse-links, even if only one protection fuse-
link has tripped.
Selection table for protection fuse-links:
Rated voltage U
r
[kV]
Supplier:
Order details:
24
SIBA
3018013.6,3 / 6.3 A / 292 mm
Manufacturer information: www.siba-fuses.com
Fig. 128: Rear side of withdrawable metering part
Preconditions
 Withdrawable metering part in test position
 Padlock (optional) removed from door handle
 High-voltage door open
 All voltage transformer MCBs are switched to OPEN position
 Low-voltage connector stowed away
 Withdrawable metering part taken out of the panel
 Set of proper protection fuse-links available
Replacing protection fuse-links for rated voltage 24 kV
Remove the two plastic bolts M8x35 with the plastic washers 8.4 (1) completely from one of the
plastic tubes (2), and keep for later use.
Remove the plastic tube, and keep for later use.
(1)
Protection fuse-link integrated in the
voltage transformer
1