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Transformer Onsite/Inhouse Services

Transformer Inspection

Comprehensive field inspection to assess transformer condition and operational reliability.

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  • External visual inspection of transformer tank, bushings, radiators, and valves

  • Check oil level indicators and pressure gauges

  • Inspection of cooling fans and pumps

  • Inspection of grounding connections

  • Inspection of cable terminations and connections

  • Identify oil leaks, corrosion, or mechanical damage

  • General condition assessment and service recommendations

Oil Processing & DGA

Transformer oil treatment and diagnostic testing to maintain insulation integrity.

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  • Transformer oil sampling

  • Dissolved Gas Analysis (DGA)

  • Oil moisture content testing

  • Oil dielectric strength testing

  • Oil filtration and dehydration

  • Oil degassing and vacuum processing

  • Oil top-off or replacement

  • Oil contamination removal

Electrical Testing & Commissioning

Comprehensive electrical testing and commissioning services following maintenance or repair activities.

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  • Insulation resistance testing (Megger)

  • Transformer Turns Ratio (TTR) testing

  • Winding resistance measurement

  • Power factor / dissipation factor testing

  • Functional checks of auxiliary systems

  • Verification of control circuits

  • Pre-energization inspection

  • Support during transformer energization

Gasket Replacement

Replacement of aged or damaged gaskets to restore transformer sealing performance.

 

Manhole gasket replacement

  • Handhole gasket replacement

  • Radiator gasket replacement

  • Valve gasket replacement

  • Conservator gasket replacement

  • Breather gasket replacement

  • Re-torque of sealing bolts

  • Pressure check after installation

Leak Detection & Repair

Identification and repair of transformer oil leaks to prevent equipment damage and environmental risks.

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  • Leak source identification

  • Valve leak repair

  • Radiator leak repair

  • Flange sealing repair

  • Oil drain / sampling valve repair

  • Pipe connection sealing

  • Tank weld repair (minor leaks)

  • Oil containment cleanup if required

Oil Processing & DGA

Transformer oil treatment and diagnostic testing to maintain insulation integrity.

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  • Transformer oil sampling

  • Dissolved Gas Analysis (DGA)

  • Oil moisture content testing

  • Oil dielectric strength testing

  • Oil filtration and dehydration

  • Oil degassing and vacuum processing

  • Oil top-off or replacement

  • Oil contamination removal

Bushing Replacement

Removal and replacement of damaged or degraded high-voltage and low-voltage bushings.

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  • Safe removal of existing bushing

  • Inspection of bushing flange and insulation

  • Installation of new HV or LV bushing

  • Replacement of sealing gaskets

  • Oil level adjustment after installation

  • Torque verification

  • Functional inspection after installation

Cooling System Repair

Maintenance and repair of transformer cooling systems to ensure proper thermal performance.

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  • Cooling fan replacement

  • Oil pump inspection and replacement

  • Radiator inspection and repair

  • Temperature control device inspection

  • Cooling circuit cleaning

  • Fan motor troubleshooting

  • Thermostat or sensor replacement

  • Cooling system operational testing

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