A transformer oil sample can reveal valuable information about an asset’s condition, but the laboratory needs more than the oil itself to interpret the results. The asset ID, sampling location, temperature, collection date, requested tests, and equipment observations all help connect the findings to the right transformer and its operating history.
Recording those details is easier with XQOhm®, MVA’s paperless sampling app. Technicians can find an asset with a quick search or photograph its nameplate to select it, then enter the temperature and choose the tests they need, without filling out a paper form. The app also supports sample tracking and access to historical test results.
Identify the Asset and Sample Location
Start with the correct asset ID so each result is assigned to the right transformer. Consistent identification also makes it possible to compare new results with previous samples. XQOhm simplifies this step by letting technicians select an asset through a search or nameplate photo.
Capture Conditions at the Time of Sampling
Include the collection date and time and the oil or equipment temperature, if measured. Temperature is particularly useful context when reviewing moisture results, while the date establishes when a change appeared in the asset’s testing history. XQOhm lets technicians enter the temperature as they log the sample in the field.
Include relevant comments, too. Was the transformer operating normally? Did the transformer trip off line? Details recorded at the time of sampling can help explain changes in the results.
Select the Tests and Document What You See
Clearly identify the tests requested for each sample, whether the goal is routine monitoring or investigation of a specific concern. In XQOhm, technicians select the desired tests after choosing the asset and entering the temperature.
Field observations add another layer of context. Record concerns such as oil leaks, an unusual noise, a change in oil level, a recent alarm, or maintenance performed since the last sample. Photographs and notes from the site can help communicate what prompted the testing. Equipment history and operating conditions are useful alongside laboratory data when evaluating transformer condition.
Better Records Support Better Interpretation
When sample information is complete, MVA’s transformer oil testing lab can connect the test results to the correct asset, review its history, and assess changes over time. If a technician needs to revisit that history while in the field, XQOhm provides access to previous test reports through the app.
Make accurate documentation part of every sample. With XQOhm, technicians can log sample details, select tests, track samples, and review results from their phone. Request a transformer oil testing quote.