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The character of the paper is purely experimental. The pulse breakdown voltage as well as impulse characteristics of the SF6+He and SF6+N2 gas mixture were examined by reliable and highly reproducible procedure. The obtained results were compared to the matching results for the pure SF6 gas (that was obtained under the same conditions). It was found that the positive synergy of the SF6+He gas mixture...
Causes of measurement uncertainties might be numerous and as the rule, not all of them can be considered. Two basic types of measurement uncertainty are the type A and the type B. Measurement uncertainty of type A is determined only by method of statistical data processing. A result of this is that measurement uncertainty of type A exists only in case of a measurement repeated several times. Measurement...
The increasing trend of electronic components' miniaturization makes them unresisting to overvoltage occurrences. Therefore, it is necessary to pay special attention to overvoltage protection at the low-voltage level. Overvoltage protection components at the lowvoltage level may be divided into linear and non-linear. Non-linear components of overvoltage protection include overvoltage diodes, varistors...
Strictly speaking, electrically uncharged and electrically charged gas mixtures can approach the Maxwell's specter in the context of low-ionized mono-atomic mixtures within a weak electric field. The parameters of the Maxwell spectrum pertaining to the gas of free electrons directly determine the insulating characteristics typical of the examined gas mixture at the fundamental level. A condition for...
Dc breakdown of helium in the range to the left of the Paschen minimum is examined. An expression relating breakdown voltage to the pd product (pressure × inter-electrode distance) and the breakdown temperature of the free electron gas Maxwell spectrum is derived. The type of breakdown mechanism is deduced by submitting the measured values of breakdown voltage in the range to the left of the minimum...
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