Apparatus and method of vibration testing for manufacturing defect detection in composite insulators
AssigneeElectric Power Research Institute, Inc.
InventorsAndrew John Phillips, Kristopher C. Kozak
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Abstract
The present application relates to an apparatus and method for detecting defects in composite insulators used in power systems. The apparatus includes a test frame, a hydraulic cylinder connected to a first end of the test frame for imparting a load on a composite insulator, a hammer for imparting excitations into the composite insulator, and a data collection device for collecting frequency responses traveling in the composite insulator as a result of the hammer striking the insulator. The composite insulator is secured between the hydraulic cylinder and a second end of the test frame.
Claims4
An apparatus for testing composite insulators, comprising:
- (a) a test frame having spaced-apart first and second ends;
- (b) a hydraulic cylinder connected to the first end of the test frame;
- (c) a composite insulator connected to the hydraulic cylinder and the second end of the test frame, with the hydraulic cylinder and composite insulator are disposed in a parallel, in-line configuration to each other;
- (d) a hammer for imparting non-destructive excitations into the composite insulator;
- and
- (e) one or more accelerometers attached to the composite insulator for collecting frequency responses traveling in the composite insulator as a result of the hammer striking the insulator.
Dependencies are inferred from the claim text.