Proceedings of the Institution of Electrical Engineers · 1975 · 11 citations · 2 references
EngineeringElectrical EngineeringCircuit TheoryHeat TransferThermal AnalysisCurrent-voltage CharacteristicsDevice ModelingDevice SimulationElectric CircuitsFinite Difference Time Domain AnalysisHeat Transfer AnalysisElectrothermal SimulationExperimental Results InterpretationFinite Difference ModelingShort Circuit TestingShort-circuit AnalysisShort-circuit CurrentShort-circuiting Analysis
The heating of notched fuse elements under a.c. short-circuit conditions has been studied, using finite-difference methods to solve for the transient current and temperature distributions in the element. The method gave good agreement with experimental results. A comparison of the behaviour with that of a uniform-section element described in a companion paper shows that there are significant differences. In particular, the notched element shows large discontinuities in the time/current characteristic, and a wide variation in prearcing I2t, depending on the circuit parameters.
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