Installation Of The Bushing; Bushing Of 12/17,5 Kv Panels; Bushing Of 24 Kv Panels - ABB UniGear ZS1 Instruction Manual

5.4. Installation of the bushing

Figure 61: 12/17.5kV panels - fixing bushings
29 nr. 1 bushing
30 nr. 8 8x25 screws
Figure 62: 24 kV panels - fixing bushings
28 nr. 1 bushing plate
29 nr. 3 bushing
Before fixing the panels side by side (according the general drawings) bushings 29 (12÷24 kV) must
be fixed (for switchgear with busbar barriers only; refer to the table on page 13).

5.4.1 Bushing of 12/17,5 kV panels

5.4.2 Bushing of 24 kV panels

Assembly procedure for bushings – main (upper) busbar system:
• Insert bushing 29 for the lower busbar into bushing plate 28 from the right side, and the middle and
upper one from the left side (figure ).
Lower bus-tie system:
• Insert bushing 29 for the lower rear bus-tie into bushing plate 28.2 from the right side in contrast to
the procedure for the other two bushings (see Figure 8).
31 nr. 8 M8 washer
32 nr. 3 Rubber partition (busbar support)
35 nr. 12 8x25 screws
36 nr. 12 M8 washer
37 nr. 12 M8 die
29
28
37
36
29
30
31
32
35
39