System and method for transformer repair

Abstract

A system includes a portable transformer repair station that includes a portable building. The portable building includes a framework, a roof, and walls having a disassembled building configuration and an assembled building configuration. The portable building is configured to be transported in the disassembled building configuration. The portable building is configured to enclose a transformer repair space in the assembled building configuration. The portable transformer repair station also includes a portable floor having a disassembled floor configuration and an assembled floor configuration. The portable floor is configured to be transported in the disassembled floor configuration. The portable floor is configured to be disposed within the portable building in the assembled floor configuration. The portable transformer repair station also includes a portable oven configured to be disposed within the portable building. The portable oven is configured to remove moisture from a core and coils of a high voltage power transformer.

1 . A system, comprising:
 a portable transformer repair station, comprising:
 a portable building comprising a framework, a roof, and walls having a disassembled building configuration and an assembled building configuration, wherein the portable building is configured to be transported in the disassembled building configuration, the portable building is configured to enclose a transformer repair space in the assembled building configuration, and the roof and the walls comprise at least one fabric sheet; 
 a portable floor having a disassembled floor configuration and an assembled floor configuration, wherein the portable floor is configured to be transported in the disassembled floor configuration, the portable floor is configured to be disposed within the portable building in the assembled floor configuration; and 
 a portable oven configured to be disposed within the portable building, wherein the portable oven is configured to remove moisture from a core and coils of a high voltage power transformer. 
   
     
     
         2 . The system of  claim 1 , wherein the at least one fabric sheet comprises a flame retardant material and a moisture resistant material. 
     
     
         3 . The system of  claim 1 , wherein the portable floor comprises a flame retardant material and a moisture resistant material. 
     
     
         4 . The system of  claim 1 , wherein the portable floor comprises a plurality of floor segments configured to selectively couple together. 
     
     
         5 . The system of  claim 4 , wherein each segment comprises a cushioning material and a plurality of structural supports. 
     
     
         6 . The system of  claim 1 , wherein the portable oven comprises a portable heater coupled to a portable transformer enclosure, and the portable transformer enclosure comprises insulated metal walls. 
     
     
         7 . The system of  claim 1 , wherein the portable oven comprises a heat source, at least one sensor, and a controller, wherein the controller is responsive to feedback from the at least one sensor to maintain a temperature level for the core and coils of the high voltage power transformer. 
     
     
         8 . The system of  claim 1 , comprising a portable heating and air conditioning unit configured to heat or air condition the transformer repair space. 
     
     
         9 . The system of  claim 1 , comprising a transformer rack configured to support core laminations of the high voltage power transformer. 
     
     
         10 . The system of  claim 1 , comprising at least one trailer or vehicle having a cargo area configured to transport the portable transformer repair station. 
     
     
         11 . A system, comprising:
 a portable transformer repair station, comprising:
 a portable transformer enclosure comprising walls surrounding an interior chamber configured to house a core and coils of a high voltage power transformer; 
 a moisture removal unit configured to remove moisture from the interior chamber; and 
 a temperature controller configured to adjust the moisture removal unit to reduce a moisture level below a threshold moisture level in the interior chamber to substantially dry the core and coils of the high voltage power transformer. 
   
     
     
         12 . The system of  claim 11 , wherein the moisture removal unit comprises a heater, a heat exchanger, an induced draft fan, a coalescing filter, or a combination thereof. 
     
     
         13 . The system of  claim 11 , wherein the portable transformer enclosure comprises an oven, and the moisture removal unit comprises a heater. 
     
     
         14 . The system of  claim 13 , wherein the oven comprises a portable metal enclosure with a framework, a roof, and walls having a disassembled oven configuration and an assembled oven configuration, wherein the portable metal enclosure is configured to be transported in the disassembled oven configuration, and the portable metal enclosure is configured to house at least one coil of the high voltage power transformer in the assembled oven configuration. 
     
     
         15 . The system of  claim 11 , wherein the portable transformer repair station comprises a portable building with a framework, a roof, and walls having a disassembled building configuration and an assembled building configuration, wherein the portable building is configured to be transported in the disassembled building configuration, and the portable building is configured to house the portable transformer enclosure in a transformer repair space in the assembled building configuration. 
     
     
         16 . The system of  claim 11 , wherein the portable transformer repair station comprises a portable floor having a disassembled floor configuration and an assembled floor configuration, wherein the portable floor is configured to be transported in the disassembled floor configuration, and the portable floor is configured to support the portable transformer enclosure in the assembled floor configuration. 
     
     
         17 . A method, comprising:
 transporting a portable transformer repair station to a local site surrounding a transformer site, wherein the portable transformer repair station comprises a portable building, a portable floor, and a portable oven;   assembling the portable floor at the local site;   assembling the portable building at the local site;   placing the portable oven inside the portable building; and   drying a core and coils of a high voltage power transformer in the portable oven.   
     
     
         18 . The method of  claim 17 , wherein the portable floor comprises a plurality of floor segments, and the portable building comprises at least one fabric layer defining a wall or a roof. 
     
     
         19 . The method of  claim 17 , comprising rewinding the coils and subsequently drying the core and coils in the portable oven. 
     
     
         20 . The method of  claim 19 , comprising disassembling the coils from the core of the high voltage power transformer at the local site or the transformer site, receiving the coils without the core at a remote site away from the local site and the transformer site, rewinding the coils at the remote site, receiving the coils at the local site after the rewinding, reassembling the coils with the core of the high voltage power transformer at the local site, and drying the core and coils in the portable oven at the local site.