Jumper to increase rating of 230kV disconnect

[BLadewig]

I've got a 230-kV disconnect rated at 1200A that I need to be able to handle a bit more (200-300A). I've heard of mechanical jumper devices that can do this. Could anyone give me some general information/manufacturers so I could do some research?

The switch is a double sidebreak Southern States Type RDC.

Thanks in advance.

 

[willybuot]

The most reliable thing to do is to replace the disconnect switch with a higher rating. At 230 kV, there is a great danger that could result if the disconnect switch could fail when it is already in operation.

Please review properly if the offered revision or modification is very reliable.

 

[stevenal]

It may be possible to simply replace the live parts with higher rated parts. Talk to Southern States.

 

[ccaserta]

Watch your insurance policy, if you burn something up because you did'n provide properly rated components, you loose. Christopher Caserta
ccaserta@enorthhampton.com
Ph:904-225-0360

 

[BLadewig]

The warnings are appreciated. Rest assured that we have new disconnects ordered. The inquiry was simply to follow up on something I had heard elsewhere, to see if there was an *industry accepted* way of increasing ampacity on these disconnects using some sort of jumper.

 

[busbar]

http://www.uscopower.com/Catalogs/SwitchModernizing/CatalogSwitchModernizing.htm

may have applicable info on 'switch uprating.' Wouldn't withstand ratings be as- or more-critical than continuous ratings?