Novel Approach to Arc Flash Mitigation for Low-Voltage Equipment

Catlett, Raymond; Lang, Mike; Scala, Steve

doi:10.1109/tia.2016.2591499

Cited by 7 publications

(1 citation statement)

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“…In order to obtain comparability of fuse-link characteristics, the standards require that the fuses ought to be prepared in the cold initial state and as the function of the RMS current. I ogr (fuse limiting current) is the highest instantaneous short-circuit current in the circuit when the electric arc is ignited in the fuselink [1][2][3][4]. The characteristic of limiting current is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Daszczyński,

Pochanke,

Kolimas

2020

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Functional properties of some electrical devices are expressed in the form of a dependence between parameters defining a given aspect of device duty or work circumstance (e.g. breakdown voltage): contacts distance for a circuit breaker, current (voltage for voltage limiters or reaction time), and load current for over current protection. Such characteristics are obtained experimentally, usually in a set of test series, each performed with a fixed independent parameter. Results of each series generate sets of data for estimation of statistical properties of a dependent parameter: distribution, expected value, variance and confidence interval. These statistics concern one point of the tested characteristic, so to get data of it as a whole, that would satisfy the needs for designing an electrical system, a large number of tests can be necessary. The way to reduce the number of tests may consists in: defining the characteristic not as a series of points, but as an analytical function with some specific parameters. This can be combined with aggregation of results of all tests in one set of data for estimation of statistical properties of the mentioned parameter. This paper presents an application of the above approach to tests of time-current characteristics of fuses.

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Section: Introductionmentioning

confidence: 99%