Westinghouse 7000:5A Current Transformers
Westinghouse 7000:5A Current Transformers
(OP)
I am trying to find information on a few Westinghouse 7000:5A CT's, but am having no luck. If anyone could tell me where to get nameplate data from old Westinghouse products or even be able to tell me information on these particular CT's such as ratings, accuracy class, excitation curve, etc. I would be greatly appreciative.
Thanks,
Justin
Thanks,
Justin






RE: Westinghouse 7000:5A Current Transformers
That ratio is not ANSI-standard for single or multi-ratio units, making it likely a special-order component. You may have luck comparing measured characteristics to similar currently listed in catalog data. The overall weight, saturation voltage and ratio {it could be mislabeled} will probably have the largest effects for ratings comparison.
RE: Westinghouse 7000:5A Current Transformers
RE: Westinghouse 7000:5A Current Transformers
Above 6000A type RCF at www.abb.com/global/abbzh/abbzh289.nsf/0/af41de45f90f0d85c1256c480057423a
RE: Westinghouse 7000:5A Current Transformers
RE: Westinghouse 7000:5A Current Transformers
RE: Westinghouse 7000:5A Current Transformers
Exactly what is wrong with the existing CTs?
RE: Westinghouse 7000:5A Current Transformers
RE: Westinghouse 7000:5A Current Transformers
RE: Westinghouse 7000:5A Current Transformers
Please, please, please don’t change ‘em out because some salesman suggests it. He’s just after a bit of quick sales volume. If you have been led to believe that 7000:5s are perilously non-mainstream and should be discarded for that reason, 3500:2.5s will throw an even semi-conscious, slightly qualified test technician into convulsions, while making equally effective door stops or canoe anchors.
ABB Pinetops can and regularly does make a good product, but parent-company droids will sell anything. Personally, if for whatever reason push comes to shove, you will likely be far better off buying 8000:5s and stripping off 200 turns from each.
If there are any significant concerns, spend a little maintenance money {or project funds} on having the existing CTs given routine, in-situ tests. Very likely they are in good shape, or if not, the associated gear is crumbling around them, and an odd CT ratio is the least of your problems.
RE: Westinghouse 7000:5A Current Transformers
RE: Westinghouse 7000:5A Current Transformers
https://www.kuhlman.com/navigation.asp?pathIDs=10,1645&selectedID=1645