864-5091.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • Revision 06 87/214
Installation
➭ Refit the locking cap of the gas filling valve.
➭ The limit value indicators on the pressure indicator of the busbar run have been pre-
adjusted at the factory. Check the limit pressures according to the table and the graphics
(see page 44, "Insulating gas SF
6
"), and correct with the supplied square socket spanner in
case of deviations.
Completing the assembly
of further busbar runs and
filling with SF
6
gas
➭ Fill all other busbar runs as described above (see page 84, "Completing busbar assembly and
filling with SF
6
gas").
23.2 Installing the panel connections supplied in the accessories, and filling
the circuit-breaker housing with SF
6
gas
For the installation of panel connections that are supplied separately, the circuit-breaker
housing is not filled with SF
6
gas at the factory.
To expose the desiccant bags as briefly as possible to the ambient air, the installation work
described hereafter is performed completely on one circuit-breaker housing in one panel.
Assembling panel
connections supplied
separately
➭ Remove 8 pan-head bolts and 8 strain washers from the cover of the transformer housing ① .
➭ Remove the cover of the transformer housing ① and the toroidal sealing ring ③ .
ATTENTION
Desiccant bags that have been fitted in the circuit-breaker housings at the factory are not
effective anymore if the housings remain open for more than half an hour.
➭ Replace desiccant bags in circuit-breaker housings that have been open for more than
half an hour.
Fig. 87: Removing the cover of
the transformer housing
①
Cover of transformer housing
②
Transformer housing
NOTE
Do not reuse the removed pan-head bolts, strain washers and the toroidal sealing ring.
➭ Dispose of the pan-head bolts, strain washers and the toroidal sealing ring in an
environmentally compatible way.
Fig. 88: Removing the cover of the
transformer housing and the seal
①
Cover of transformer housing
②
Transformer housing
③
Toroidal sealing ring
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