The Dielectric Field in an Electric Power Cable

Calculation of the internal thermal resistance and ampacity of 3-core unscreened cables with fillers

“…The first paper on this subject dates from 1905 (Mie, 1905). Further work on determining the value of for various types of three-core cables was done by Russel (19 14), Atkinson (1924) and Simmons (1923Simmons ( , 1932. The difficulty in solving mathematically the problem of a 3-core cable mentioned above has been overcome by other methods such as the integral-equation method and the filament heat source simulation (f.h.s.s.)…”

Power Cable Rating Calculations - A Historical Perspective [History]

“…A few months later, Atkinson [17] presented a continuation of his previous work [13], where he determined the dielectric stresses and the geometric factor in three-conductor cables from new measurements performed on immersed electrodes and showed satisfactory agreement with the results obtained from Simons' graphical method [14]. To further extend the previous publication [15], Melsom and Beer [18] reported new results of measurements carried out on single-phase cable systems laid up straight on a wooden floor, surrounded by still air.…”

“…He proposed a graphical correction method to improve the estimation of the thermal resistance between the conductors and the surrounding sheath in belted cables having from two up to four identical conductors. He also provided an estimation of errors of his new formulation compared with the ones reported by Mie [7], Russel [11], and the experimental data of Atkinson [13].…”

“…Later, during the year 1919, Atkinson [13], concerned about the lack of knowledge about internal heat conduction in threeconductor cables, investigated experimentally their internal thermal resistances and capacitances by means of electrical measurements on electrodes immersed in an electrically conducting liquid to simulate the operation of three conductors insulated with a homogeneous dielectric.…”

“…Computation of Temperature Cycles from Principal Harmonics of Load Curves. Atkinson (1924) [17], New Measurement of Geometric Factor of Three-Core Cables and Result Comparison with Its Former Paper [13] and Reported Results of [11] and [14]. Miller and Wollaston (1932) [20] and [21], Simplified Analytical Method for Cable Transient Temperature Rise Due to Rectangular Load Changes Using the Superposition Theorem.…”