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Experience has shown that HV equipment in a switchyard, particularly oil-filled instrument transformers, can fail explosively following dielectric breakdown. Failure of HV equipment can cause injuries to personnel in the vicinity due to fire and explosion, and therefore utilities implement various risk mitigation procedures.
Emission spectroscopy of plasma-excited chemical species is widely used for generalized chemical analyses in bench-top systems. This paper explores the use of pulsed microdischarges between two and three electrode microstructures, which operate in air at atmospheric pressure, for use in handheld chemical analyzers. Pulsed microdischarges are fired between two-electrodes spaced apart by 0.2-2 mm. Synchronized...
This paper will describe a power system configuration that provides improved energy efficiency for telephone power plants. This is accomplished by supplying the plant load with a voltage lower than typically used. The approach will be explained using a standard configuration for a +24 volt (12 cells per string) battery plant. The following points will be emphasized: - Circuitry necessary to maintain...
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