Transformer Testing & Commissioning

We test and commission distribution and power transformers — every reading documented in a calibration-traceable report.

What we provide

• Turn-ratio (TTR) & vector group verification
• Insulation resistance, PI & winding resistance
• Magnetic balance & magnetisation current
• SFRA, tan-delta & capacitance testing
• Oil BDV testing & transformer oil filtration
• OLTC, WTI/OTI calibration & Buchholz check

Why choose Tajalli Tech for transformer testing

At Tajalli Tech, we provide comprehensive pre-commissioning and diagnostic testing of distribution and power transformers, designed to confirm that each unit is sound before it is placed in service. Our experienced engineers carry out the full test regime — turns-ratio (TTR), insulation resistance and polarisation index, winding resistance, magnetising current, magnetic balance, vector-group and ratio verification, tan-delta and capacitance, and SFRA to detect any winding movement following transport or a through-fault — together with oil BDV and dissolved-gas analysis. On completion we verify the protection scheme and charge the transformer on load, ensuring it is energised correctly the first time.

What you get

On completion of testing, you receive a calibration and NABL-traceable report presenting every measured value against its acceptance limit — TTR per tap, insulation resistance and polarisation index, winding resistance, tan-delta, the SFRA response, and oil BDV and dissolved-gas figures — prepared in accordance with IS 2026, IEC 60076 and IS 1866 and suitable for your records and auditors.