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Twinsen
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Join Date: Nov 2010
Posts: 3

Rigid or Flexible Busbar

11/23/2010 7:54 AM

Hi all, I'm wondering what are the key considerations for choosing to go with either rigid or flexible busbar for say 132kv and up? I can think of some factors such as length of span, required ampacity, wind loadsvetc but was hoping to get some guidance on this from more experienced folks thanks Twinsen
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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

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#1

Re: Rigid or Flexible Busbar

11/23/2010 9:51 AM

Don't forget about thermal expansion and mechanical support.

I'm more than a little worried though.

132kV is a very hazardous voltage to be working on. While there certainly are several people at this forum that work at these voltages, there are also people here that have never worked at these voltages. Being a public forum there are no qualifiers to having an account and posting anything here. Working on and around busbar currents at this voltage level must be done only by authorized personnel. Assuming that you are employed by a power distribution utility, you should consult with your colleagues about any design work.

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timelord
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#2
In reply to #1

Re: Rigid or Flexible Busbar

11/23/2010 2:48 PM

I can only fully agree to this Redfred

T L.

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Samuel Chelliah
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#3

Re: Rigid or Flexible Busbar

11/24/2010 10:59 AM

Flexible bus bars, I presume are cables. This depends on the layout and where you want to use these connections. If is from indoor dry type transformer to panel, isolated bus bars may be used. If the connections are long and have to be run say to the switchyard, XLPE cables should be used. Cross section of the cable of course depends on the current requirement. If you give some more details, perhaps you will be able to get a more specific answer
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