Switching device

Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems

Reexamination Certificate

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Details

C318S009000, C318S560000, C318S563000, C318S569000

Reexamination Certificate

active

07151353

ABSTRACT:
A method for evaluating a condition of a switching device. The switching device includes contact parts, an electric motor and a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts. A self-diagnostic test is performed on a component of the switching device. The test includes making at least one small movement with the electric motor. A switching device includes contact parts, an electric motor, a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts, and tester for making self-diagnostic tests, wherein the tester makes small motor movements that are a fraction of a full breaking movement, thereby producing data for evaluating a condition of the switching device.

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