Velatia ORMAZABAL gae.630, Руководство пользователя

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IG-322-EN version 03; 22/07/2022
19
General instructions
SF
6
-insulated circuit-breaker panel:
Type
gae
.630 -1LSV(G)-/5/
in modular extensible design up to 24 kV, 20 kA
Transport and installation
3.6.3. Possible installations
Installation possibility for circuit-breaker panels in accessible
switchgear rooms.
During installation make sure not to damage the burst
protection in the bottom of the gas tank (Figure 3.5).
This diaphragm opens in case of an internal arc fault.
The gases emerging must be discharged as shown in
Figure 3.8.
As shown in Figure 3.8 the cable trench must have a defined
minimum cross section. For the optional pressure relief
of the cable trench the following rule of thumb must be
applied:
• up to 3 panels: 1 metal cooling stretch arrangement
(400 x 600 mm)
• from 4 panels: 1 second metal cooling stretch arrangement
of the same size
The metal cooling stretch arrangement provided by the
customer must be arranged in a way that the cable trench
is evenly divided.
Please ask for our assistance in the planning and installation
of the station.
The construction of the building and the switchgear
room must withstand the expected mechanical loads
and the internal pressure caused by a short- circuit arc.
Corresponding calculations for this are recommended.
Switchgear related pressure calculations can be requested
as part of the services provided by the sales department at
Ormazabal
GmbH.
2
3 4
1
a b
a
Pressure relief only into the cable trench/raised floor
b
Pressure relief via metal absorber and rear pressure absorber
channel into the switchgear room
1
Metal cooling stretch arrangement
2
Metal absorber
3
Cable trench / raised floor
4
Cable trench / raised floor
Figure 3.8.