Cubicle Mounting - Siemens SIPROTEC 7SD80 Manual

Mounting and Commissioning
3.1 Mounting and Connections

3.1.3.3 Cubicle Mounting

The housing (housing size
• Loosely screw the two angle rails into the rack or cubicle with 4 screws each.
• Remove the 2 covers at the top and bottom of the front cover. Thus, 4 elongated holes are revealed in the
mounting bracket and can be accessed.
• Secure the device to the angle rails with 4 screws.
• Mount the 2 covers again.
• Tighten the 8 screws of the angle rails in the rack or cubicle.
• Connect a solid low-ohmic protective and operational ground to the grounding terminal of the device. The
cross-section of the cable used must correspond to the maximum connected cross-section but must be at
2
least 2.5 mm
• Connections are to be established via the screw terminals at the rear panel of the device in accordance with
the circuit diagram. The details on the connection technique for the communication modules on the bottom
of the device (port A and port B) in accordance with the SIPROTEC 4 System Description and the details on
the connection technique for the current and voltage terminals at the rear of the device in the Sections „Con-
nections of the Current Terminals" and „Connections of the Voltage Terminals" must be strictly observed.
Note
Observe the bending radius of the conductors at the modules. Therefore, make sure that there is sufficient
downward clearance when flush mounting the control cabinet. There must be a clearance of at least 4 to 6
inches under the device.
Figure 3-13 Example installation of a 7SD80 in a rack or cubicle
250
1
/ ) has 2 covers and 4 fixing holes.
6
.
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011