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Power Quality Duck Test


The duck test is a humorous term for a form of inductive reasoning. It is explained this way: ”If it looks like a duck, swims like a duck and quacks like a duck then it probably is a duck.”

The test implies that a person can figure out the true nature of something by observing the subjects readily identifiable traits. It can also used to identify something that is not what it appears to be.

We can use this very inductive reasoning for electrical devices that fail or continue to fail during a power disturbance.

If an electrical device fails and the standard procedure is to reboot it, repair it or replace it, then it’s probably a power disturbance issue and the electrical device will probably continue to fail during a power disturbance.

If one electrical device often fails and one of the above methods corrected the failure, than it’s probably a power disturbance issue and the electrical device will probably continue to fail during a power disturbance.

If several electrical devices often fail and one or more of the above methods corrected the failure, than it’s probably a power disturbance problems and the electrical devices will probably continue to fail during a power disturbance.

If any statement is true then in addition to the restoration costs production time, income, and productive labor time have been lost.

If these issues have been occurring over a long period of time then in addition to the restoration costs, a large amount of production time, income, and productive labor cost have been lost.

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