Abstrakt
The paper discusses problems arising in attempts to accurately represent
dynamic processes of an electric arc by means of simple mathematical
models. It describes the properties of the universal Pentegov model,
employing any shape of static voltagecurrent characteristics of an arc.
Next, it presents spectral and integral measuring methods for determining
arc parameters in the Mayr, Cassie and Pentegov models of the electric arc
with a forced sinusoid current circuit, with the raising static
characteristics of hyperbolic-flat and hyperbolic-linear shape. The
influence is discussed of the random power supply disturbances on errors
of determining the mathematical model parameters.
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