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The Extended Thin Wire Model of Lossy Round Wire Structures for FDTD Simulations
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This paper presents an extended thin wire model for simulating lightning surge or wave propagation on lossy round wire structures. The wire structures are represented with time-domain cascade circuits, and are integrated into a traditional FDTD...

Generalized Formulation of Earth-Return Impedance / Admittance and Surge Analysis on Underground Cables
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A generalized formulation of earth-return impedance and admittance for underground cables is proposed based on a complete solution of Maxwell equations. The frequency responses of wave propagation characteristics are evaluated by the newly...

Thermal Characteristic and Analysis of Microchannel Structure Flat Plate Pulsating Heat Pipe with Silver Nanofluid
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This study investigates the effect of silver nanofluid on a flat-plate pulsating heat pipe (FP-PHP). Simulation was performed using FLUENT 15.0 software, for which a three-dimensional model having a microchannel structure in the condensation section was...

FDTD analysis about surge phenomena arising on co-axial cable
2016 Edition, May 1, 2016 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In electrical systems, co-axial cables have come to be widely used (for example, transmission systems, building inner wirings and so on). A surge current entering into the cables might cause severe damage to them. Therefore it is necessary to investigate...

Computation of the magnetic field generated by an underground pipe-type cable
1996 Edition, Volume 11, April 1, 1996 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A hybrid computational method for predicting the magnetic field in the vicinity of an underground three-phase pipe-type cable is presented in this paper. This hybrid method combines the numerical techniques...

Cavities in mass-impregnated HVDC subsea cables studied by AC partial discharge measurements
2019 Edition, Volume 26, June 1, 2019 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Partial discharge measurements have been used for studying shrinkage voids in the insulation of mass-impregnated high voltage DC subsea power cables. Three 4.5-m long cable samples were subjected to ac partial discharge measurements at different ambient...

A New Adaptive Time-Delay Control Scheme for Cable-Driven Manipulators
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This paper proposes a new adaptive time- delay control (ATDC) scheme for cable-driven manipulat- ors. The proposed ATDC scheme contains three elements, i.e., time-delay estimation (TDE), injected dynamics and adaptive laws. The TDE utilizes intentionally...

Computation, Properties and Realizability of the Characteristic Immittance Matrices of Nonuniform Multiconductor Transmission Lines
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Power lines are longitudinally nonuniform, nonsymmetrical systems, where ordinary modal analysis, originally conceived for uniform multiconductor transmission lines (MTL), can be utilized only as a zeroth-order approximation. In this paper we present an accurate analysis of nonuniform...

Mutual coupling between driven rods in grounding system of transmission lines
2017 Edition, Volume 1, September 1, 2017 - Technical Committee on Dielectrics & Electrical Insulation, IEEJ

Driven rods connected by horizontal buried wire (counterpoise) is a common configuration of grounding in transmission lines. When subjected to a lightning current, the transient impedance of the grounding is prevailed by the surge impedance...

IEC 61643-352:2018 - Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
January 10, 2018 - IEC - International Electrotechnical Commission

IEC 61643-352:2018 covers the application of surge isolation transformers (SITs) that are used in telecommunication transformer applications with signal levels up to 400 V peak to peak. These transformers have a high rated impulse voltage with or without screen between...

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