System and method for impact testing wedge tightness in an electrical generator
AssigneeWestinghouse Electric Corp.
InventorsGeorge F. Dailey, Mark W. Fischer, Harry L. Sill
Life of this patent
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Abstract
An improved apparatus for impact testing stator wedge tightness in an electrical generator includes a base assembly that has a vibration sensor mounted thereon and is adapted to temporarily attached to a stator core lamination in an electrical generator, an impact assembly for creating an impact against the stator core lamination; and a mounting system for mounting the base assembly to the impact assembly. The mounting system includes an isolating system for vibrationally isolating the base assembly from the impact assembly during use, so that the vibration sensor will receive vibrations from the stator core lamination, and not said impact assembly. The method of use is also disclosed.
Claims15
An improved apparatus for impact testing stator wedge tightness in an electrical generator, comprising:
- a base assembly having a vibration sensor mounted thereon, said base assembly further comprising attaching means for temporarily attaching said base assembly to a stator core lamination in an electrical generator;
- an impact assembly for creating an impact against a stator core lamination;
- and
- mounting means for mounting said base assembly to said impact assembly, said mounting means including isolating means for vibrationally isolating said base assembly from said impact assembly during use, whereby said vibration sensor will receive vibrations from the stator core lamination, and not said impact assembly.
An improved apparatus for impact testing stator wedge tightness in an electrical generator, comprising:
- a base assembly having a vibration sensor mounted thereon, said base assembly further comprising attaching means for temporarily attaching said base assembly to a stator core lamination in an electrical generator;
- an impact assembly for impacting a stator core lamination, said impact assembly comprising an electrical impact drive mechanism and an impacting tool driven by said impact drive mechanism;
- and
- mounting means for mounting said base assembly to said impact assembly.
A method of impact testing stator wedge tightness in an electrical generator, comprising steps of:
- (a) attaching a base assembly having a vibration sensor mounted thereon to a stator core lamination in an electrical generator;
- (b) creating an impact against a stator core lamination with an impact assembly;
- and
- (c) simultaneously with step (b), vibrationally isolating the base assembly from the impact assembly during use, whereby said vibration sensor will receive vibrations from the stator core lamination, and not said impact assembly.
Dependencies are inferred from the claim text.