861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 67/214
Installation
Preparing busbar
assembly on the panel to
be lined up
This operation is only performed if there is a horizontal flange cover available on the busbar
housing of the panel to be lined up.
➭ Remove all horizontal flange covers from the assembly openings ② on the busbar
housings ④ of the panel to be lined up.
➭ Loosen the fixing bolts ③ at the busbar ends.
Example: Removing top
units for busbar voltage
transformers 4MU4
➭ Switch the disconnector ③ of the disconnectable busbar voltage transformer to OPEN
position.
NOTICE
Risk of property damage
During assembly of the 4000 A busbar, there is risk of property damage in case of re-
assembling the busbar into the panel to be lined up.
➭Do not re-assemble the busbar from the fixed-mounted panel to the panel to be lined up.
Fig. 50: Preparing busbar assembly on the panel to be lined up (example 4000 A)
①
Busbar housing of the fixed-mounted panel
④
Busbar housing of the panel to be lined up
②
Assembly openings (horizontal flanges) in the busbar housings of
the panel to be lined up
⑤
Busbar for 4000 A
③
Fixing bolts
⑥
Interconnecting bars
Fig. 51: Connection of disconnectable busbar voltage
transformer 4MU4 to the busbar (sectional view)
①
Bushing for voltage transformer
4MU4
②
Transformer connection housing
③
Disconnector in OPEN position
④
Busbar housing
⑤
4000 A busbar
⑥
Bolted joint of transformer
connnection housing with busbar
housing
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