A fully installation oil-immersed high-voltage power transformer, successfully installed at the client’s substation. This transformer is a critical asset for voltage regulation and reliable transmission within the electrical grid.

Key Features and Components:

• Cooling System:
  The transformer is equipped with dual radiator banks and forced-air cooling (ONAF) using high-efficiency axial fans to enhance heat dissipation. This setup allows for both natural and forced cooling modes, extending operational capacity during peak load conditions.

• Conservator Tank and Breather Assembly:
  Located on top, this maintains oil levels and compensates for expansion during heating cycles, while the silica gel breather ensures moisture-free air intake.

• Buchholz Relay & PRV (Pressure Relief Valve):
  Installed as part of the protection system to detect internal faults and relieve excess pressure in the event of an abnormal situation.

• Control & Marshalling Panels:
  The front panel includes local control interfaces, analog/digital meters, and terminal compartments for SCADA interfacing and protection relays.

• HV & LV Bushings:
  Mounted on top and sides for connection to incoming and outgoing feeders through overhead conductors or GIS terminations.

• Construction Zone:
  The transformer is installed within a fire-rated concrete pit, complying with fire safety standards and noise control requirements.

Compliance & Standards:

The unit was erected in accordance with IEC 60076, IEEE, and relevant utility specifications, ensuring electrical, mechanical, and thermal reliability under various environmental conditions.