Influence of vibration recorders on conductor vibration

The influence of four conductor vibration recorders on the vibration they measure was assessed on a full-scale outdoor test line. Measurements made with the line wind-excited by aeolian vibration, and excited by a shaker suspended from the conductor, both showed that a large recorder inertia changes...

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Published in:IEEE transactions on power delivery 1994-04, Vol.9 (2), p.919-938
Main Authors: Heics, R.C., Havard, D.G.
Format: Article
Language:English
Subjects:
240303 - Power Transmission Lines & Cables- Overhead Lines- (1990-)
Analytical models
Clamps
Conductors
Damping
DYNAMIC LOADS
Fatigue
Laboratories
Length measurement
MEASURING INSTRUMENTS
MEASURING METHODS
MECHANICAL VIBRATIONS
MONITORS
POWER TRANSMISSION AND DISTRIBUTION
POWER TRANSMISSION LINES
Predictive models
Testing
Vibration measurement
WIND LOADS
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description The influence of four conductor vibration recorders on the vibration they measure was assessed on a full-scale outdoor test line. Measurements made with the line wind-excited by aeolian vibration, and excited by a shaker suspended from the conductor, both showed that a large recorder inertia changes the distribution of conductor bending about a suspension clamp. The maximum bending amplitudes measured are significantly affected when differences in span length, tension, damping, or wind exposure result in large differences in maximum antinode vibration amplitudes in adjacent spans. A simplified analytical model for conductor bending in the vicinity of a suspension clamp was developed to interpret the field data. This model was used to predict the range of aeolian vibration frequencies that can be recorded with a reasonably low level of recorder influence on several ACSR conductor sizes using various vibration recorders.< >
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1937-4208
language eng
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source IEEE Electronic Library (IEL) Journals
subjects 240303 - Power Transmission Lines & Cables- Overhead Lines- (1990-)
Analytical models
Clamps
Conductors
Damping
DYNAMIC LOADS
Fatigue
Laboratories
Length measurement
MEASURING INSTRUMENTS
MEASURING METHODS
MECHANICAL VIBRATIONS
MONITORS
POWER TRANSMISSION AND DISTRIBUTION
POWER TRANSMISSION LINES
Predictive models
Testing
Vibration measurement
WIND LOADS
title Influence of vibration recorders on conductor vibration
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