NDLI: The Response of Substation Bus Systems to Short Circuit Conditions, Part II: Measurements on the Transverse Vibration of Selected Station Post and Pin-Cap Insulators

Content Provider	IEEE Xplore Digital Library
Author	Borhaug, J.E. Cambias, S. Davey, J. Thompson, H.A.
Copyright Year	1963
Abstract	The first three natural frequencies of selected, 230 and 115 KV, cantilever-mounted insulators were measured using a frequency scanning procedure. The values of these frequencies indicate that the behavior of the insulators under fault load conditions may usually be described by a mathematical model having distributed mass and elasticity, the Euler-Bernoulli equation. The values of the first and second natural frequencies of most of the insulators were found to be less than 120 Hz, indicating that hazards are associated with the use of a single, spring-mounted mass to simulate their forced vibration in the design of substations. Measurements of the decay in their free vibration showed that the inherent damping of the insulators is no more important than the damping of the other structural elements in substations.
Starting Page	1706
Ending Page	1711
Page Count	6
File Size	3657967
File Format	PDF
ISSN	00189510
Volume Number	PAS-90
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1971-07-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vibration measurement Substations Insulation Damping Frequency measurement Circuit faults Mathematical model Elasticity Equations Hazards
Content Type	Text
Resource Type	Article
Subject	Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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