Description and main characteristics
General instructions
7
cpg.1
Fully SF6 gas insulated single and double busbar GIS switchgears up to 36 kV in accordance
with IEC Standards
IG-137-EN version 03; 23/06/2016
1.3 Main components
Each cubicle is made up of a series of independent
compartments:
Figure 1.1
Main elements of
cpg.1
cubicles
Gas tanks
These are the compartments which house the switching
and breaking switchgear, where the insulating medium is
SF
6
gas. There are 2 or 3 separate compartments:
• 1 for each of the feeder disconnectors
• 1 for the circuit breaker and the earthing switch
These are sealed compartments, made of stainless steel
and sealed for life. They are designed and tested to
withstand an internal arc of up to 31.5 kA - 1 s.
Depending on the function for which the cubicle was
designed, it may contain the following components:
• Feeder disconnectors
• Earthing switch
• Internal busbar and connections
• Vacuum circuit breaker
• Switch - disconnector
• Fuse holders
Figure 1.2
Gas tanks of circuit breaker and disconnectors for
cpg.1-v2
cubicle
There are sets of bushings in the top and bottom of the
compartments for connection of the busbar and the power
cables respectively.
1. Gas tanks
2. Busbar compartment
3. Cable compartment
4. Gas pressure relief duct (optional)
5. Control compartment
6. Driving mechanism area
Содержание Ormazabal cpg.1 Series
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