Pontefract Yorkshire

Onsite refurbishment of 1 x 11.5/23MVA 33kV transformer
Client:
Undisclosed
Pontefract, Yorkshire

Scope of work

  • Onsite refurbishment of 1 x 11.5/23MVA 33kV transformer.
  • Full PID 360 security installed.
  • Full site setup including welfare.
  • Extract oil samples from the transformer main tank before the commencement of the works and upon completion.
  • Partially drain 8500 litres of oil from the transformer.
  • Refill and oil filtration on completion of refurbishment works.
  • Removal and disposal of the complete existing cooler bank with full contract lift.
  • Design and installation of new A frame, radiators and fans.
  • Modification of existing pipework to suit the new cooler bank.
  • Supply and install of new PRD with deflector shield and 2.1M ground vent.
  • Supply and Installation of new buchholz relay complete with bleed and sampling pipes/taps.
  • Supply and installation of all new breathers.
  • Installation of all new warning labels.
  • Completed all earthing of the new cooler back to existing substation earthing as per the client specification.
  • Re-gasket any leaks on the transformer including, Transformer lid inspection covers, instrument capillary pockets, tank side inspection covers and tap changer covers.
  • Installation of new overload protection devices, contactors, for the new fan.
  • Steam cleaning of 132kV Transformer including ancillary equipment.
  • Full painting of the transformer including cooler bank and auxiliary transformer.

Installation of Molecular Sieve System

 

 

 

 

 

 

 

 

 

 

  • Install 1 x mounting frame for molecular sieve system.
  • Install 1 x molecular sieve system including wiring.
  • Installation of new overload protection devices, contactors, for the new molecular sieve.

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