Electrical Aging Phenomena of XLPE and EPR Cable Insulation Energized by Switching Impulses

Grzybowski, S.; Shrestha, Prakash; Cao, L.

doi:10.1109/ichve.2008.4773963

Cited by 33 publications

(12 citation statements)

References 9 publications

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“…In addition to these stresses, conditions of surrounding environment would also affect the aging of power cables. In some cases, such as in marine conditions, the influence of the surrounding environment would be of more significance [1][2][3].…”

Section: Introductionmentioning

confidence: 98%

Electrical aging phenomena of medium voltage EPR cable energized by ac voltage with switching impulses superimposed

Cao

Zanwar

Grzybowski

2011

2011 IEEE Electric Ship Technologies Symposium

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Electrical aging of polymer insulated power cables has been an important subject of investigation in the last several decades. Cable insulation is placed under heavy electrical stress due to overvoltages occurring during switching operations taking place in the power system. Transients overriding the normal ac operation voltage are some of the most hazardous conditions for cable insulation life. Although a good understanding of aging mechanisms under single stress has been achieved, more research work is needed to fully grasp the phenomena taking place under multi-stress conditions. In this study, the electrical aging of 15 kV Ethylene Propylene Rubber (EPR) power cables was undertaken by ac voltage with switching impulses superimposed in wet condition. The experiments aimed at providing a better understanding of the electrical aging phenomenon of EPR cable insulation in wet condition. It also helped to assess the reliability of EPR cables used under such circumstances.

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Section: Introductionmentioning

confidence: 98%

Electrical aging phenomena of medium voltage EPR cable energized by ac voltage with switching impulses superimposed

Cao

Zanwar

Grzybowski

2011

2011 IEEE Electric Ship Technologies Symposium

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“…The power cables need to endure the threats from electrical, mechanical, and thermal stress [10][11][12]. All of these stresses will initiate the change of properties of cable insulation materials, resulting in the deterioration of cable insulation [13][14].…”

Section: B Xlpe and Epr Cable Under Electrical Stressmentioning

confidence: 99%

“…Ambient temperature during the experiment was maintained at 20˚C. In the experiment, the cable samples were aged by the specific number of impulses [8][9][10][11][12]. [7].…”

Section: ) Details Of the Tested Cable Samples: The Mississippimentioning

confidence: 99%

Tools and dielectric requirements for the design of marine cabling systems

Mazzola

Card

Grzybowski

et al. 2013

2013 IEEE Electric Ship Technologies Symposium (ESTS)

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This paper explores various power cable challenges for notional electric ship applications including future technology trends for shipboard power cables. To meet the demands of an "all electric ship," the cabling requirements of the design are not a trivial issue which can result in significant error in estimating final size, weight, and cost at time of construction along with costly failures and early repairs that impact lifecycle cost. This paper provides information on the development of a design tool known as a "Generic Cable Calculator" to estimate parameters such as impedances, weights, and bending radii for ship power cabling. Analysis of actual experience in designing ship cabling suggests improvements in early design tools needed to capture additional requirements in terms of grounding, shielding, and satisfying current standards for cables used in the variable frequency drive train. Also addressed are results specific to future trends of cable insulation and future standards.

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“…New challenges are caused by electronic converters stressing the dielectric structure with high slew rate and repetition frequency of switching pulses [e.g. [20][21][22][23][24][25][26][27][28][29].…”

Section: Partial Discharges At Impulse Stimulusmentioning

confidence: 99%

Exploitation stresses and challenges in diagnostics of electrical industrial equipment

Florkowski

2011

2011 IEEE International Symposium on Industrial Electronics

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Exploitation strategies of electric power and industrial equipment, stimulated mainly by economic and environmental trends, play a crucial role in ensuring uninterrupted power delivery and continuous operation. The diagnostics of industrial equipment is particularly important in this context, due to both operational multistresses and the strive for higher and higher voltage levels as well as due to increasing requirements with respect to safety, security and reliability in electric power and industrial networks. Modern diagnostics is a multidisciplinary domain. The development of power electronics, sensors, optoelectronics, communication, information technology and new materials has a strong influence on new approaches. This keynote will address the challenges and trends of modern diagnostics with a special focus on electric insulation systems exposed to power electronics stimuli. The main challenge nowadays is the proper interpretation of acquired diagnostic information and correlation with physical phenomena and degradation processes. Various complementary methods will be presented along with industrial examples; like the signal and image processing methods applied for assessing pulse diagnostic symptoms coming from stochastic signals of partial discharges in various structures of the insulation systems and high frequency response analysis applied to winding assessment. New challenges caused by electronic converters subjecting and stressing the electric insulation systems with high slew rate and repetition frequency of switching pulses is shown. The noninvasive and non-destructive character of applied methods make them especially attractive for diagnostics and monitoring purposes. Further, from the global perspective, reliability and safety drive the recent trends in industrial diagnostics.

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Electrical Aging Phenomena of XLPE and EPR Cable Insulation Energized by Switching Impulses

Cited by 33 publications

References 9 publications

Electrical aging phenomena of medium voltage EPR cable energized by ac voltage with switching impulses superimposed

Electrical aging phenomena of medium voltage EPR cable energized by ac voltage with switching impulses superimposed

Tools and dielectric requirements for the design of marine cabling systems

Exploitation stresses and challenges in diagnostics of electrical industrial equipment

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