MR fits old Westinghouse UVT with VACUTAP® RMV-II
USA, Florida: Spare parts for many Westinghouse UVTs, placed in service more than 40 years ago, are costly and increasingly difficult to obtain. It is, however, possible to utilise RMV-II components in the VACUTAP® UVT-LTX in order to increase reliability of tap changers.
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USA, Florida: Spare parts for many Westinghouse UVTs, placed in service more than 40 years ago, are costly and increasingly difficult to obtain. It is, however, possible to utilise RMV-II components in the VACUTAP® UVT-LTX in order to increase reliability of tap changers.
The UVT-LTX retrofit was performed at the Big Pine substation, 100 miles south of Miami, operated by the energy supplier Keys Energy Services. The UVT on-load tap-changer on an old Westinghouse transformer has regularly required maintenance. However, the final solution was retrofit with a new VACUTAP® UVT-LTX from MR.
The LTX (Life Time Extension) built VACUTAP® RMV-II into the old transformer. Only the load-switching unit, gearbox and motor-drive unit had to be replaced, while the housing, contact board and selector elements of the old UVT were kept. The oil was not pumped out of the transformer and the maintenance interval was extended to 500,000 tap-change operations.
MR-Experts from the US subsidiary Reinhausen Manufacturing (RM) visited the site to undertake the replacement. Under the direction of RM service technicians the work was successfully completed in under a week. Transformer components were also replaced in the process. The pressure relief device, displays, and dehydrating breather are now from Messko.
Source: Maschinenfabrik Reinhausen GmbH
Image: Maschinenfabrik Reinhausen GmbH
#Maschinenfabrik Reinhausen#MR#power transformers#VACUTAP® RMV-II#VACUTAP® RMV-II Florida#VACUTAP® UVT-LTX#Westinghouse UVT Florida#Westinghouse UVTs