Modelling and simulation of fault detection in Shielded Twisted Pair cables

Shirkoohi, G.H.

doi:10.1109/icit.2016.7474897

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…The monitoring and diagnostic systems are designed also for Shielded Twisted Pair cables so that there is no interference between the twisted pair cables. The paper [26] discusses computer models of electrical wires in Shielded Twisted Pair cables and test procedures based on an Enhanced Time Domain Reflectometry technique. The diagnostic models for the coaxial cable are under consideration in papers [27,28].…”

Section: Review Of Cable Fault Modeling Researchmentioning

confidence: 99%

Recognizing VSC DC Cable Fault Types Using Bayesian Functional Data Depth

2021

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Diagnostics of power and energy systems is obviously an important matter. In this paper we present a contribution of using new methodology for the purpose of signal type recognition (for example, faulty/healthy or different types of faults). Our approach uses Bayesian functional data analysis with data depths distributions to detect differing signals. We present our approach for discrimination of pole-to-pole and pole-to-ground short circuits in VSC DC cables. We provide a detailed case study with Monte Carlo analysis. Our results show potential for applications in diagnostics under uncertainty.

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Section: Review Of Cable Fault Modeling Researchmentioning

confidence: 99%

Recognizing VSC DC Cable Fault Types Using Bayesian Functional Data Depth

2021

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“…Conductors and their insulation material act as plates and dielectric of this capacitance, respectively. (24) shows the dependency of the mutual capacitance to the wire's geometries [46]:…”

Section: E Self and Mutual Capacitancementioning

confidence: 99%

“…Modeling of the twisted pair cables was thoroughly investigated in the literature. Some models have been extracted experimentally based on the S-parameter [11][12][13][14][15][16] or time-domain measurements [17][18][19][20][21][22][23][24][25]. The main disadvantage of the experimental models is that all measurements must be repeated even only by changing one of the cable parameters.…”

Section: Introductionmentioning

confidence: 99%

Design Analysis and Evaluation of a W-Element Model for a Twisted-Pair Cable

2020

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Unlike the twisted pair cable's simple installation mechanism, evaluating a circuit equivalent and certifying it is not very convenient anymore. Although the best way to model transmission lines is to use the field solver software programs such as ANSYS Maxwell or HFSS, this procedure is very overwhelming and time-consuming. This paper presents a straightforward approach to extract a W-element model for the twisted pair cable based on its structural and electrical characteristics. The W-element model employs a novel state-of-the-art transmission line simulation method which is very fast, accurate and robust. Both system designers and cable manufacturers can easily exploit the presented equations and the derived models to predict the behavior of the balanced transmission lines with two conductors using simulators such as HSpice, etc. Nexans unshielded CAT6 twisted pair cable, one of the most common types of cables used in today's networks, is selected as a case study in this paper to verify the proposed model. A variety of simulations have been carried out to evaluate the performance and accuracy of the proposed model. Furthermore, the validity of the model is assessed against the real Fluke test results. INDEX TERMS Twisted pair cable, W-element, Transmission line modeling, Fluke test, RLGC model. I. NOMENCLATURE ε 0 Permittivity of free space ε r Relative permittivity of material µ0 Magnetic permeability of free space µr Relative magnetic permeability of material ρ Specific electrical resistance of material σ DC conductivity of the insulation material δ Skin depth f Frequency d Diameter of the conductor D Center to center separation of the conductors H Height of the wire above the ground NVP Nominal Velocity of Propagation tan(δ) Loss tangent of insulation material kp Correction factor of proximity effect l Length of wire lmax Maximum length of RLGC element LCable Cable jacket length Lwire Wire's electrical length Lwire-pitch Wire's pitch length

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“…Furthermore, TDR is able to estimate the location where the failure happened. From the literature, the 3 common TDR measurement methods used are Single-Ended Method [24,25], Single-Pin Grounded Method [17,26] and All-Pin Grounded Method [27,28].…”

Section: Introductionmentioning

confidence: 99%

Comparison Study of Time Domain Reflectometry (TDR) Measurement Methods for Detecting Wire Interconnect Related Open-Contact and Short-Contact Failures in Power Semiconductor

Ng¹,

Soo

2022

Trends Sci

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Open-contact and short-contact are 2 common failures that causing power semiconductor to have electrical malfunctioned. One of the reasons of these failures relate to defective in the wire interconnect. Time domain reflectometry (TDR) is a common method widely used to detect failures in semiconductor devices. This study focused on comparing 3 different TDR measurement methods in detecting wire related open and short failure for power semiconductor, namely Single-Ended method, Single-Pin Grounded method and All-Pin Grounded method. A special custom-made jig is used during the measurements to ensure all the methods are measured under the same conditions. This study shows that all the 3 TDR measurement methods are able to detect wire related open and short failures in power semiconductor. The Single-Pin grounded method is the preferred method because it is easy in term of setup and having the good capability in detecting both open and short failures. Furthermore, the study also shows that the TDR is able to detect the location of open and short failures that is not able to achieve by using the conventional electrical testing method. HIGHLIGHTS Comparison study on Single-Ended, Single-Pin Grounded and All-Pin Grounded TDR measurement methods in detecting open-contact and short-contact failure in power semiconductor The study shows Single-Pin Grounded TDR measurement method is the preferred method since it is easy in term of setup and able to detect both the open-contact and short-contact failures TDR measurement method is also able to locate the location of open-contact and short-contact failures GRAPHICAL ABSTRACT

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Modelling and simulation of fault detection in Shielded Twisted Pair cables

Cited by 6 publications

References 11 publications

Recognizing VSC DC Cable Fault Types Using Bayesian Functional Data Depth

Recognizing VSC DC Cable Fault Types Using Bayesian Functional Data Depth

Design Analysis and Evaluation of a W-Element Model for a Twisted-Pair Cable

Comparison Study of Time Domain Reflectometry (TDR) Measurement Methods for Detecting Wire Interconnect Related Open-Contact and Short-Contact Failures in Power Semiconductor

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