ABB UniGear ZS1 Instruction Manual page 49

Figure 74: 12-17,5 kV panels – Tee-off 1600÷4000A, busbars 3150A-3600A-4000A
41 nr. 4 10x60 screws
42 nr. 8 M10 washers
43 nr. 4 M10 nuts
45 nr. 1 spacer (5mm)
- 1250 A
- 1250 A
Figure 75: 24 kV panels – Tee-off 1250A, busbars 1250A
41 nr. 4 10x35 screws
42 nr. 8 M10 washers
43 nr. 4 M10 nuts
5.6.3.2 Busbars for 24 kV units
Busbars and branches are made of copper and both have a flat cross-section. Bushings are different
from the 12/17.5kV ones. They are single for each phase and have an electrode inside, which must
be connected to the busbar.
Busbars for 24 kV units are insulated by means of shrink sheaths and the connection points are covered
by insulating covers.
41
42
43
41
42
45
43
47