Transformer Maintenance Knowledge Vault

Risk & Reliability of Transformers

A significant and growing risk for unplanned outages and lost production has been increasing in the past decade due to failures of critical power transformers. With plant capacity running at all-time highs in the US, and little room for unplanned outages, it is more critical than ever that transformer reliability become front and center of any effective reliability program.

Sampling - Part 2

Information about your electrical equipment is critical but is of limited use by itself. Laboratory testing is also required to get the most accurate diagnosis, but accurate and representative test results are dependent on getting a good representative sample.

Sampling - Part 3

Regarding containers for Karl Fischer Moisture Analysis, SDMyers has found that a glass bottle functions as an excellent container for moisture analysis, if all of the following conditions are met: Before sampling, the capped bottle is kept dry by using a desiccant tablet; the glass bottle has a metal cap with a Teflon liner; when sampling, the bottle is filled to the very top in order to minimize the gas space in the bottle; and the KF Moisture test is the first test performed out of the bottle. Using proper sample containers will help ensure that your samples are representative of the actual conditions inside your electrical equipment, enabling proper diagnosis to extend the life of your transformer.

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Risk & Reliability of Transformers

Sampling - Part 2

Sampling - Part 3

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