Hi,
My question is about routing conductor around a 240kV transfromer Sorbweb oil containment. The issue is that the containment area (14.5 x 32.5 m) is pretty huge compared to the transformer pad (4 x 9 m). If we are to install conductors below containment they will have to be installed at...
Hi Everyone,
Our utility clients usually specify a minimum phase to ground clearances for high voltage (>69kV) substations. While we always meet those requirements, what potential issues would you all see in the following arrangement:
A live wire jumper is connected in such a way that it meets...
Hi Everyone,
I am designing a 240kV AIS substation for a utility client. Their standards and specifications specify a bus rating of 3000A. For flexible jumpers, I specified 2x2000 MCM ASC conductors to satisfy the ampacity rating. The client came back and told us not to use 2000 MCM conductors...
Hi,
We are designing a grounding system for a pipeline terminal which is being supplied by a 25kV utility substation. The grading drawings for the plant suggest that the backfill material is ‘225mm pit run gravel and 75mm thick coarse gravel layers’ for the whole plant area plus substation...
Hi everyone,
While working with a 36/25kV 25MVA power transformer, I came across something labelled as a 'core bushing terminal'. Is this a grounding connector for the transformer core? I've never came across this before.
Can someone please clarify its purpose?
Thanks
Hi everyone,
I have a question about bus connectors used in high voltage substations. There are mainly 3 types; fixed connectors, expansion and slide connectors. Whereas some connectors manufacturers use the term expansion and slide interchangeably, is there really any difference between them...
