Seismic Vulnerabilities and Retrofit of High-Voltage Electrical Substation Facilities

Knight, Brian; Kempner, Leon

doi:10.1061/41050(357)22

Cited by 10 publications

(5 citation statements)

References 1 publication

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“…Wire ropes are often used for the vibrational control of industrial equipment [32]. They have never been used in practical applications as seismic isolators that have only been demonstrated in research studies [8,35,4,9,23,16,18,17]. The outcome confirmed that wire rope isolators are the suitable isolation system to mitigate the response of HV equipment to earthquakes.…”

Section: Introductionsupporting

confidence: 68%

“…Similar effects were recorded during the 1999 Itzmit, 1999 Chi Chi, 2003 Bahm, 2010 Christchurch and 2010 Tohoku earthquakes [11,31,16,14,20]. Based on work by Schiff [30], Anagnos [2] developed a database for electrical substation equipment performance that contains information on the damaged and undamaged components from 12 California earthquakes (from the San Fernando Earthquake in 1971 to the Northridge Earthquake in 1994).…”

Section: Introductionmentioning

confidence: 85%

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Seismic retrofitting of an HV circuit breaker using base isolation with wire ropes. Part 1: Preliminary tests and analyses

Alessandri

Giannini

Paolacci

et al. 2015

Engineering Structures

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Section: Introductionsupporting

confidence: 68%

Section: Introductionmentioning

confidence: 85%

Seismic retrofitting of an HV circuit breaker using base isolation with wire ropes. Part 1: Preliminary tests and analyses

Alessandri

Giannini

Paolacci

et al. 2015

Engineering Structures

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“…The seismic vulnerability of High Voltage (HV) equipment installed in electric substations within power transportation and distribution networks has been clearly shown during recent destructive earthquakes [1][2][3][4]. This is not surprising because many of these equipment are slender, with heavy masses placed at top and mostly composed by porcelain, a material with a good strength but extremely brittle.…”

Section: Introductionmentioning

confidence: 99%

Seismic vulnerability assessment of a high voltage disconnect switch

Paolacci

Giannini

Alessandri

et al. 2014

Soil Dynamics and Earthquake Engineering

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“…Poor seismic performance of these system components could result in extended power outages that might propagate far beyond the local epicentral region. Knight and Kempner, Jr. (2009) [5] …”

Section: Introductionmentioning

confidence: 99%

Soil–Structure–Equipment Interaction and Influence Factors in an Underground Electrical Substation under Seismic Loads

et al. 2017

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Underground electrical substations play an increasingly significant role in urban economic development for the power supply of subways. However, in recent years, there have been few studies on the seismic performance of underground electrical substations involving the interaction of soil-structure-equipment. To conduct the study, three-dimensional finite element models of an underground substation are established. The implicit dynamic numerical simulation analysis is performed by changing earthquake input motions, soil characteristics, electrical equipment type and structure depths. According to a seismic response analysis, acceleration amplification coefficients, displacements, stresses and internal forces are obtained and analyzed. It is found that (1) as a boundary condition of soil-structure, the coupling boundary is feasible in the seismic response of an underground substation; (2) the seismic response of an underground substation is sensitive to burial depth and elastic modulus; (3) the oblique incidence of input motion has a slight influence on the horizontal seismic response, but has a significant impact on the vertical seismic response; and (4) the bottom of the side wall is the seismic weak part of an underground substation, so it is necessary to increase the stiffness of this area.

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Seismic Vulnerabilities and Retrofit of High-Voltage Electrical Substation Facilities

Cited by 10 publications

References 1 publication

Seismic retrofitting of an HV circuit breaker using base isolation with wire ropes. Part 1: Preliminary tests and analyses

Seismic retrofitting of an HV circuit breaker using base isolation with wire ropes. Part 1: Preliminary tests and analyses

Seismic vulnerability assessment of a high voltage disconnect switch

Soil–Structure–Equipment Interaction and Influence Factors in an Underground Electrical Substation under Seismic Loads

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