Displacement measurement of high-voltage winding for design verification of short-circuit strength of transformer

Oh, Yeon-Ho; Song, Ki-Dong; Lee, B.Y.; Park, K.Y.

doi:10.1109/tdc.2003.1335383

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…The double integration of a constant offset in acceleration data for example leads to a huge parabolic error in distance. Thus, for example in [3], where acceleration sensors were used for coil displacement measurements without adequate signal processing resulting in displacement time series with parabolic shapes. The disadvantage of the signal processing procedure according to Fig.…”

Section: Measurement System Using Acceleration Sensorsmentioning

confidence: 99%

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Deformation measurement system for buckling tests on Continuously Transposed Cable using a high-speed camera

Geissler

2014

2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)

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An optical deformation measurement system for buckling tests on Continuously Transposed Cable (CTC) using high-speed camera recordings and marker tracking is proposed. The aim of the buckling test setup is to analyze the mechanical strength of CTCs with respect to radially acting electromagnetic forces as they appear in power transformers. Therefore a CTC winding arrangement is fed by a short-circuit current while the deformation is recorded by the camera system. The verification of the new deformation measurement system is done by an independent system based on acceleration sensors. Especially operationally aged power transformers can be affected by high short circuit currents, resulting in serious damages on windings. Thus, the influence of ageing phenomena on the mechanical strength of CTCs like degradation of the paper insulation shall be investigated with the proposed system. Experimental results are proposed for a factory-new CTC and the influence of paper insulation on its stiffness is evaluated from the marker tracking results during the short circuit tests.

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Section: Measurement System Using Acceleration Sensorsmentioning

confidence: 99%

“…In [3] the authors used acceleration sensors to monitor axial and radial displacements of a winding during a short-circuit event. In [4] strain gauges were used to measure the coil displacements by converting the displacements into strain in an acrylic resin plate.…”

Section: Introductionmentioning

confidence: 99%

Deformation measurement system for buckling tests on Continuously Transposed Cable using a high-speed camera

Geissler

2014

2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)

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“…Large amounts of short circuit currents result in mechanical stress on the transformer winding due to the electromagnetic force which is proportional to the square of the short circuit current. The magnitude of the electromagnetic force due to the short circuit current may amount to a few million Newton [8]. This force can deform the arrangement of the winding conductors or even mechanically destroy fixed transformer parts.…”

Section: Winding Failurementioning

confidence: 99%

Condition-based hazard rate estimation and optimal maintenance scheduling for electrical transmission system

Jiang¹

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The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleed-through, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion.

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The Risk-Based Optimal Maintenance Scheduling for Transmission System in Smart Grid

Zhang

Lixin

Qiu

et al. 2010

2010 International Conference on Electrical and Control Engineering

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Displacement measurement of high-voltage winding for design verification of short-circuit strength of transformer

Cited by 7 publications

References 4 publications

Deformation measurement system for buckling tests on Continuously Transposed Cable using a high-speed camera

Deformation measurement system for buckling tests on Continuously Transposed Cable using a high-speed camera

Condition-based hazard rate estimation and optimal maintenance scheduling for electrical transmission system

The Risk-Based Optimal Maintenance Scheduling for Transmission System in Smart Grid

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