Old Type 132 kV Disconnector

Hello sottermo,

All that sort of isolator switch, from 11kV up to 220kV, was made locally here, near where I live.

But that would be too far away for you, not being made here, and we mostly now source in Japan, Korea, China etc.

Try ABB, (Asea Brown Boveri), they are Sweden/Switzerland based, and should have a replacement which will fit your situation.

If you are requiring a great number of these, want them cheaply priced, and are not in a hurry, send drawings to manufacturers in China, for best prices, refer: http://www.alibaba.com/countrysearch/CN-suppliers/High_Voltage_Switchgear.html

Hope that assists you.

Kind Regards....

Southern States LLC makes retrofits for just about any type of medium or high voltage switch. I just purchased replacements for a set of similar switches originally installed in 1931. They drilled the mounting plates so that the new units were drop-in replacements.

They are headquartered in the US, but their website shows a sale representative in Beijing.

These look very similar to Flakt electrostatic disconnector insulator/switch made in the early 80s. They may be the go.

We have now dismantled the fixed contact from the breaker. The copper is annealed, so there are little or no contact pressure left.

Any more tips for retrofit?

Hello sottermo

In emergencies we used to make our own fixed contacts on-site, rather than wait a few days for replacements to arrive from a central store.

The contact buttons need to be removed from the old contacts, and pressed into, then quickly welded with high-silver-content welding rod, to the copper main parts, of course.

I don't know how many you have to repair, but almost any workshop worth it's salt could make new fixed contacts for you.

I could still make this sort of thing at home, with very basic equipment, even though I'm presently "retired" (Whatever that means).

If you have a medium sized switchboard factory nearby, show them the damaged contact, and I'm sure they could quickly assist in making suitable replacements.

Advise your progress here, thank you.

Kind Regards....