Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Reexamination Certificate
2006-12-19
2006-12-19
Masih, Karen (Department: 2837)
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
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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Backman Magnus
Bosga Sjoerd G.
Jonsson Lars
Kiaer Philip C.
Larsson Per
ABB AB
Franklin Eric J.
Masih Karen
Venable LLP
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