Emergent Transformer Change-Out & IPB Repair

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Summary:

EBI mobilized to this natural gas generating station to assess the damaged caused by an unexpected failure at the transformer and develop a plan for necessary repairs.

Scope of Work:

  • Opened GCB covers.
  • Completed a visual inspection of the GCBs and determined areas of concern.
  • Re-gasket and installed covers.
  • Unbolted bushing sections and remove bushing sections.
  • Removed first section of the GIB and replaced bellow supplied by others.
  • Clean contact surfaces, replaced “O” rings and cleaned enclosure interior, then installed first section of the GIB.
  • Cleaned contact surfaces, replaced “O” rings and cleaned enclosure interior, then installed Bushing section.
  • Opened, cryogenically cleaned, and inspected insulators from the end of the new IPB sections back to the GCB, as well as openings allowed.
  • Opened, cryogenically cleaned, and inspected insulators on the remaining IPB from the GCB towards the generator, as well as openings allowed.
  • Silver plated the LV bushings on the replacement GSU.
  • Opened, cleaned, and inspected the GCB, auxiliary transformer, exciter transformer, and the generator area.
  • Cut and removed existing damaged IPB sections.
  • Set the EBI supplied GSU IPB Turret Adapters.
  • Set and aligned EBI supplied IPB sections.
  • Welded EBI supplied conductors.
  • Welded EBI supplied enclosures and shorting plates.
  • Completed a DC Hi-Pot acceptance test of the IPB per IEEE standards from GSU to Isolated side of GCB.
  • Installed EBI supplied braids and covers at the GSU.

When an unexpected failure happens, you need a trusted partner to guide you through the repair process. With EBI’s deep bus duct expertise, we provide tailored solutions to meet your critical electrical and transformer change-out needs. Whether you're dealing with a routine project or an emergency, planned well in advance or needing immediate action, EBI delivers more than just standard bus services—we offer custom fabrication, modification, and repair solutions. You can count on us to get you back online quickly and safely, ensuring minimal downtime and maximum reliability.

Project Details

Plant Type:Natural Gas
Plant Size:580 MW
Plant Location:Puerto Rico
EBI Job #3825/3826/3841
JPR Score

Testimonial

“Excellent management of tasks. Crew works very well, and PM is excellent. Very responsible. Very knowledgeable. Excellent time management. Always safety first. Good relationship and can accomplish the goals as required. Very satisfied.”

Daniel S.
Technical Services Manager

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