Leak detection in transformers

A non-transitory computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

• obtaining moisture data of a substance in a power transformer;
• determining, based on the moisture data, a functional relationship between relative saturation of moisture of the substance and temperature of the substance;
• determining, based on the functional relationship, a gradient of the relative saturation with respect to the temperature of the substance;
• determining, based on the gradient, a leak of moisture of an environment surrounding the power transformer into the power transformer has occurred;
• and
• in response to determining that the leak has occurred, generating a visual alert or an audio alert to indicate that the leak has occurred.

A computer-implemented system comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, cause the computer-implemented system to perform one or more operations comprising:
• obtaining moisture data of a substance in a power transformer;
• determining, based on the moisture data, a functional relationship between relative saturation of moisture of the substance and temperature of the substance;
• determining, based on the functional relationship, a gradient of the relative saturation with respect to the temperature of the substance;
• determining, based on the gradient, a leak of moisture of an environment surrounding the power transformer into the power transformer has occurred;
• and
• in response to determining that the leak has occurred, generating a visual alert or an audio alert to indicate that the leak has occurred.