MV (10KV) switchgear extraction
MV (10KV) switchgear extraction
(OP)
On a MV panel, is it possible to extract one complete cabinet located at the middle without touching neighboring ones?
For makes such Merlin Gerin, Eaton...
Thanks for help
For makes such Merlin Gerin, Eaton...
Thanks for help






RE: MV (10KV) switchgear extraction
David Castor
www.cvoes.com
RE: MV (10KV) switchgear extraction
RE: MV (10KV) switchgear extraction
RE: MV (10KV) switchgear extraction
RE: MV (10KV) switchgear extraction
RE: MV (10KV) switchgear extraction
Maybe if you told us what you are actually trying to do you will get a better answer.
Also, confirm that this is IEC-type switchgear and not ANSI. That may make some difference as well.
Don't expect us to spend more time working on a solution than you spent typing the question.
David Castor
www.cvoes.com
RE: MV (10KV) switchgear extraction
I attached a sketch showing what am trying to do.
Please help
RE: MV (10KV) switchgear extraction
RE: MV (10KV) switchgear extraction
You are definitely going to have to be into the back of sections 9 and 10 to disconnect and remove the cross bus. There may also be great difficulty sliding sections in and out from between existing sections. If the original installation was as tight as it should be, it may required demolition of at least one of the sections to be removed. Don't know how you'll get the section new section into place.
RE: MV (10KV) switchgear extraction
Front & Back Bus Bars Fish plates, control wiring connections, need to be unbolted, as well bolts securing panels to one another & to the floor.
You may have to fit additional voltage transformers to serve the separated buses as well as bus chamber end cover plates on each end.
Sliding the redundant panels out should not be too difficult.
Safety is paramount!
RE: MV (10KV) switchgear extraction
RE: MV (10KV) switchgear extraction
Regards
Marmite
RE: MV (10KV) switchgear extraction
As the section 11 (bar rising) will not be re-used, it can be destructed in order to extract safely the section 10 (bus-coupler).
What do you think?
As the lenght of the 2 sections to be inserted is exactly the same as available space, do you think it's feasible?
gattie: for voltage transformers, they're integrated to incomers, so no need for additionnal.
Actually in the existing configuration, we have 2 HV/MV transformers (1 working + 1 standby).
The aim of this modification is to separate the 2 bus sections and to add a feeder on bus-1.
Both transformers will be working and a standby will be added in another building).
thanks.
RE: MV (10KV) switchgear extraction
But assuming you can shut down the ENTIRE lineup to work on it, and have it shut down the ENTIRE time, then I don't see why this could not be done.
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RE: MV (10KV) switchgear extraction
If by "without touching", you mean not damaging or removing the adjacent sections then yes, it should be possible. If you mean not even opening the adjacent sections then it's highly unlikely.
RE: MV (10KV) switchgear extraction
Actually 'without touching' means without removing.
Opening adjacent sections should be possible.
RE: MV (10KV) switchgear extraction
You are taking out two panels, a bus coupler and riser. You are installing a feeder C/B and a bus coupler. Have you managed to find a bus coupler that achieves in one panel width, what was done originally in two panel widths? Where is the riser for the bus bars?
Regards
Marmite