Replacing CT's with bus bar

[aelectricalman]

Im relocating CT's that are mounted in a cabinet within the 2000amp gear box. As part of the install of a transfer switch, we had to set a free standing CT cabinet next to the transfer switch. We could not reuse the existing Ct's because the generator to be added would spin the meter, due to the set up. Now that we are moving the standard 4 bolt pattern cts, we need to bridge the gap. Aside from setting 5 slot lugs on each phase and bridging wire between it, in not having any luck. Seems like the makers of the cts would also make a bridge. Anyone know of any solutions similar to this.

 

[hillbilly1]

We have had buss bars made for such an application, but might be tough though if the inspector asks for a UL listing.

 

[GearMan]

Talk to the Mfg. of the CT cabinet you just installed. Since they build per your utility requirements, they could supply the bus links to match the CT's you just removed. We do it all the time, never had an issue in our area.

 

[iwire]

We have them made by a panel shop.

 

[GearMan]

We have them made by a panel shop.

Yes. Our local panel builders also Mfg all of our CT cabinets.

 

[shockin]

Like others have said talk to the manufacture.

I just ordered three today to replace 3,000 amp CT's. They were $100 each

 

[rgomes26]

I would be looking for documentation from the manufacturer for this modification. If its not in the installation instructions for this gear then they you would be required to have a NRTL relist the equipment after the mods.

 

[iwire]

If its not in the installation instructions for this gear then they you would be required to have a NRTL relist the equipment after the mods.

That is entirely up to the AHJ to decide and I have never had one request that for this change.