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Reyrolle Switchgear

GM Elec Eng

I was wondering if anyone had any experience or examples of failing Reyrolle HH Switchgear?

We have a large number of this switchgear on our site, dating back to the early 1950's, and have recently been informed that this type of switchgear is prone to "catastrophic failure" and have been advised that no Live switching should be undertaken on this type of switchgear (even the On-Load rated Switches and not just the Off-Load isolators).

We have now placed a restriction on Live switching our Reyrolle HH Frames and I am looking for any examples of these failures and what the causes have been

Any case studies / reports / information anyone has would be greatly appreciated

Regards

Greg

Parents

  • Have you tried speaking direct to Reyrolle (Siemens).  I'm not familiar with the HH gear but there is plenty of C still in service and I think Siemens still offer a refurb service.  You could also try the ENA.  

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  • Have you tried speaking direct to Reyrolle (Siemens).  I'm not familiar with the HH gear but there is plenty of C still in service and I think Siemens still offer a refurb service.  You could also try the ENA.  

Children
  • in reply to statter

    I have spoken with Siemens previously about some of the Reyrolle SA switchgear from the same era and they had nothing available for it so it is unlikely but I will try them again just incase. We still have some of the HV C-Gear in service that was retrofitted by Siemens in the early 2000's and thankfully we have still been able to procure spares from them for this switchgear.

  • in reply to GM Elec Eng

    I think that's the best course of action.  there is a lot of C gear around but I think the HH could well be much less common.  If you cant get anywhere with Siemens then the ENA may be able to help - defects are quite widely shared - but if HH gear is uncommon or absent from UK DNO systems then the ENA may not be much help.  Meanwhile you might want to consider excluding personnel from switch rooms with live gear if you haven't already done so until you can establish the position accurately.

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