Busbar Installation; Bolting The Earth Bus Sections Together; Electrical Connections; Connecting The Hv Cables - Siemens 8BK30 Operation And Maintenance Instructions

8bk30 3.6-12kv type 8bk30 switchgear up to 12kv with draw-out vacuum contactors, air-insulated metal-enclosed, metal-clad
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2.2.6.3
1
M12
70Nm
1
11
L1 L2
L3
2.2.6.4
2.3
M12
2.3.1
2.3.2
5
1
11
M12
40Nm
M12

2.2.6.3 Busbar installation

The busbars of adjacent transport units must be connected
to the busbar connectors (1,Fig.11) using the parts and fixing
elements supplied with the units. Grease the contact faces.
M12 bolts must be tightened with a torque of 70 Nm and
M12 bolts with a torque of 40 Nm.

2.2.6.4 Bolting the earth bus sections together

The earth bus sections for the individual transport units
must be linked together. One of the two sections to be
bolted together is fitted with a link. This must be undone,
passed through the opening in the partition wall and
bolted to the two adjacent earth bar sections.Grease the
contact faces.

2.3 Electrical connections

Using M12 bolts to fix HV cable inside switchgear.

2.3.1 Connecting the HV cables

The terminal links of the switchpanel are fitted with the
appropriate fixing elements (M12 bolts) for the cable lugs.
The built-in cable support rails are adjustable.

2.3.2 Earthing the switchpanel

Connect the earth terminal of at least one panel to the
station earth (guide value: one terminal for five panels)
The earth terminal must be connected to the earth busbar
in the cable termination compartment.
1 Connector (link) for the
busbar sections
Fig.11
Connecting point of
busbars L1, L2and L3
17

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