The Integrity of ACSR Full Tension Splice Connector at Higher Operation Temperature

Wang, Jy-An John; King, Thomas F.; Graziano, Joe; Chan, John K. W.

doi:10.1109/tpwrd.2008.917661

Cited by 16 publications

(5 citation statements)

References 4 publications

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“…The rapid decrease of compressive force in the conductor section at the early stage of thermal cycling (from 20°C to 150°C) will lead to a relatively sharp temperature increase in this temperature range and above before reaching a quasi-steady state. This is consistent with the observation from the thermal cycling temperature profile experiment [1]. Different trends in compressive force from thermal cycling simulation are observed between the heat-up and the cooldown cycles for the core-grip section.…”

Section: B Fem Thermal Cycling Simulationsupporting

confidence: 91%

“…In collaboration with the Electrical Power Research Institute (EPRI) a series of experiments were carried out to determine the temperature profiles within the connector fitting of an ACSR Drake conductor system during thermal cycling. Measurements were obtained for conductors with both SSC and TSC connectors [1].…”

Section: Temperature Profiles and Thermo-mechanical Characterizationmentioning

confidence: 99%

“…= 20992*e -0.024T * L cond + 14449*e -0.02T * L core (1) R SR is the effective shear resistance capacity provided by the splice system. The frequency-dependent surface temperature, T, was described as below, T = 0.6375*T cond *N f 0.0969 (2) where, T cond is the control conductor temperature and N f is the number of thermal cycles.…”

Section: R Sr = Minimum (R H R C ) = R Hmentioning

confidence: 99%

“…Previously developed methodology to evaluate SSC systems [1,2], is extended to the study of TSC systems. The potential of failure frequency of TSC fittings at higher temperature operations is considerably lower than that of SSC fittings.…”

Section: Introductionmentioning

confidence: 99%

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The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power Transmission Lines

Wang¹,

Jiang²,

Ren³

2024

RE&PQJ

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Due to material discontinuity and inherited forming mechanism from a crimped-type splice connector, the associated conductor-connector system is highly sensitive to system components aging, especially during high-temperature operations. Furthermore, due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than the original designed values. This has led to the accelerated aging and degradation of conductor-connector systems. The implications of connector aging are twofold: (1) significant increase in resistivity of the splice connector and (2) significant reduction in the connector clamping strength. Therefore, splice connectors are one of the weakest links in the electric power transmission infrastructure. In this paper we will discuss the reliability of splice connector systems, including both single stage and two stage splice connectors, used in ACSR conductor of transmission lines under high temperature operations.

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Section: B Fem Thermal Cycling Simulationsupporting

confidence: 91%

Section: Temperature Profiles and Thermo-mechanical Characterizationmentioning

confidence: 99%

Section: R Sr = Minimum (R H R C ) = R Hmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power Transmission Lines

Wang¹,

Jiang²,

Ren³

2024

RE&PQJ

View full text Add to dashboard Cite

show abstract

“…The consequence of temperature rise is the primary root cause of failure in such system. This work explained the myth of increasing failure frequency of conductor-connector system in recent years due to increase in the power demand, which won a 2009 R&D 100 Award [26][27]. There is striking similarity between this earlier work and that of surveillance capsule regarding the gap density in the tubing system.…”

Section: Issue Associated With Hfir Surveillance Capsule Temperaturementioning

confidence: 59%

Low Temperature Irradiation Embrittlement of Reactor Pressure Vessel Steels

Wang

2015

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A thermal model for calculating axial temperature distribution of overhead conductor under laboratory conditions

Zhang

Ying

Chen

et al. 2019

Electric Power Systems Research

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The Integrity of ACSR Full Tension Splice Connector at Higher Operation Temperature

Cited by 16 publications

References 4 publications

The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power Transmission Lines

The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power Transmission Lines

Low Temperature Irradiation Embrittlement of Reactor Pressure Vessel Steels

A thermal model for calculating axial temperature distribution of overhead conductor under laboratory conditions

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