Run Transformer Startup and Oil Sampling Record — Free

Inspection Identification and Transformer Details

Transformer asset ID and location recorded

Startup date and time recorded

Transformer nameplate data verified critical (required)

Confirm nameplate voltage, kVA/MVA rating, serial number, and cooling class match the asset record.

Yes No N/A

Pre-start condition noted

Document whether the unit is new, returned from maintenance, or re-energized after outage.

Note (optional)

Reference work order or commissioning record attached

Safety, Isolation, and Sampling Readiness

LOTO applied and verified before pre-energization sampling critical (required)

Confirm lockout-tagout controls were applied in accordance with OSHA 1910.147 before any sampling or inspection activity.

Yes No N/A

Appropriate PPE worn for oil sampling and electrical work area critical (required)

Verify gloves, eye protection, arc-rated PPE as required by the task hazard assessment, and any additional site-specific PPE.

Yes No N/A

Sampling valve and surrounding area clean and free of contamination critical (required)

Inspect the valve, fittings, and sample port for dirt, moisture, leaks, or residue before collecting the sample.

Yes No N/A

Photo evidence (optional)

Sampling container and labels prepared

Confirm clean, appropriate containers are available and sample labels are ready for pre- and post-energization identification.

Yes No N/A

Sampling method followed per site SOP critical (required)

Document that the sample was drawn using the approved procedure to minimize air ingress and contamination.

Yes No N/A

Pre-Energization Oil Sample and Baseline Readings

Pre-energization oil sample collected critical (required)

Record whether the baseline sample was taken before energization.

Yes No N/A

Pre-energization sample time

Pre-energization sample identification number

Pre-energization oil temperature

Record the oil temperature at the time of sampling.

Pre-energization ambient temperature

Pre-energization DGA baseline submitted or queued critical (required)

Confirm the sample is designated for dissolved gas analysis baseline testing and chain-of-custody is complete.

Yes No N/A

Post-Energization Startup Readings and Oil Sample

Transformer energized successfully critical (required)

Confirm the transformer was energized without abnormal alarms, trips, or protective relay operation.

Yes No N/A

Post-energization oil sample collected critical (required)

Record whether a follow-up sample was taken after energization for comparison to the baseline.

Yes No N/A

Post-energization sample time

Post-energization sample identification number

Post-energization DGA sample preserved for lab submission critical (required)

Confirm the sample was sealed, labeled, and prepared for laboratory submittal without contamination or delay.

Yes No N/A

Post-energization oil temperature

Operating Load, Observations, and Sign-Off

Initial load reading recorded

Record the transformer load at startup or shortly after stabilization.

Voltage and current readings recorded

Document initial operating voltage and current values for the energized transformer.

Yes No N/A

Note (optional)

No abnormal noise, vibration, odor, or leakage observed critical (required)

Verify the transformer is operating normally with no visible or audible deficiencies.

Yes No N/A

Inspector signature

Supervisor or authorized reviewer signature

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Run: Transformer Startup and Oil Sampling Record

Inspection Identification and Transformer Details

Safety, Isolation, and Sampling Readiness

Pre-Energization Oil Sample and Baseline Readings

Post-Energization Startup Readings and Oil Sample

Operating Load, Observations, and Sign-Off

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