Transformer bushings

[alterrex]

Looking for documented problems with General Electric "U" Type bushings.

 

[jbartos]

Suggestion: Visit

http://www.hepn.com/resource.htm

for:
Note: Complete test data available for the following equipment. Removed from service in 2001
General Electric Bushing
Type U
Class 345 KV
Category No. 11B877BBG6
BIL 1050
Amps 1600
Voltage 220 KV
Manufactured 1978 3 4/15/02
General Electric Bushing
Type U
Class HRY196
Category No. 11BB34BBG3
BIL 900
Amps 2500/3000
Voltage 146 KV
Manufactured 1978 3 4/15/02
General Electric Bushing
Type U
Class AT-23
Category No. 7B522BBG11
BIL 150
Amps 400/1200
Voltage 16KV
Manufactured 1978 3 4/15/02


For more information, please contact Phil Johnson at 812-876-0256 or pjohnson@hepn.com.

 

[buzzp]

I can send you a pdf file of discussions on these bushings. Problem is I need your email since this document is on companies intranet, the link will not help you. Let me know where I should send it.

 

[alterrex]

Guess I was not real clear. I am looking to replace three of this type bushing on a 700 MVA GSU next spring because we had one fail a Doble test on a 40 MVA reserve auliary transformer, and I had heard there was an issue of failures
involved with the GE "U" type bushing. I am looking for supporting documentation to justify their replacement.

 

[alterrex]

To member buzzp, my work email address is John_Baker@dynegy.com send it there if you don't mind, my home dial-up connection may take too long to download the pdf file. Thank you very much, sounds like what I am looking for.

 

[jbartos]

Suggestion: Visit

http://www.netaworld.org/files/ItemFileA335.pdf

for General Electric U type bushing

 

[buzzp]

I emailed it. Let me know if you did not get it. Thanks