Transformer Services

Scheduled maintenance programs as per SEC requirements

Condition-based monitoring and performance trend analysis

Infrared thermography and on-site inspection

Transformer Turns Ratio (TTR)

Insulation Resistance (IR) and Polarization Index (PI)

Winding Resistance Testing

Tan Delta (Power Factor) Testing

Sweep Frequency Response Analysis (SFRA)

Dielectric Frequency Response Analysis (DFRA)

Partial Discharge (PD) testing

Magnetic Balance Test

Excitation Current Test

Short Circuit Test

Functional and operational testing

Dissolved Gas Analysis (DGA)

Moisture, acidity, and dielectric strength testing (BDV)

Oil filtration, dehydration, and vacuum treatment

Oil reclamation and regeneration services

Inspection, maintenance, and overhaul of OLTC/DETC

Contact replacement and mechanism calibration

Timing and operational sequence testing

Radiator cleaning and flushing

Fans, pumps, and cooling system performance checks

Thermal performance optimization in high ambient conditions

Transformer erection, assembly, and alignment

Oil filling under vacuum and drying processes

Pre-commissioning and Site Acceptance Testing (SAT)

Energization and commissioning supervision

Inspection Methods

Visual inspection of tank joints, flanges, radiators, bushings, and valves

Identification of corrosion, gasket failure, and welding defects

Oil level monitoring and verification of leakage points

Advanced Leak Detection Techniques

Vacuum and pressure testing for integrity verification

Dye penetrant or tracer methods for identifying micro leaks

Thermal imaging to detect abnormal temperature patterns linked to oil loss

Oil loss monitoring and trend analysis