Siemens NXAIR - Page 105

Operating the metering panel
110-0134.9 / 14 NXAIR / ≤ 40 kA 105
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:
7.2
Bussmann
(a business of Eaton)
7.2ABWNA / 3.15 A / 142 mm
12
Bussmann
(a business of Eaton)
12ABCNA / 3.15 A / 195 mm
17.5
Bussmann
(a business of Eaton)
17.5CAV2 / 2 A / 220 mm
Supplier information: www.eaton.com
Preconditions
• Withdrawable metering part / metering truck 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 / metering truck taken out of the panel
• Set of proper protection fuse-links available
Replacing protection fuse-links for rated voltage ≤ 12 kV
Fig. 170: Withdrawable metering part,
taken out of the panel
(1)
Removable protection fuse-link
(2)
Fixed-mounted
voltage transformer
1
2