Monitor to characterise electrical noise in alternate current network. / Monitor para caracterização de ruídos em redes de corrente alternada.

AUTOR(ES)

Alvaro Macedo da Silva

DATA DE PUBLICAÇÃO

1992

RESUMO

Power line disturbances can adversely affect electronic sensitive equipment, particularly microcomputer based systems. In order to register these disturbances a power line monitor has been developed. The developed instrument is microprocessor based using a 80C86-2 as the main CPU. The following electrical disturbances can be monitored: nominal frequency deviations, radio-frequency interference, under and overvoltages, transient over voltages. Attempting to minimize Von Neumann´s bottle neck, the hardware was designed in such a way that most of the readings were requested through interrupts. The equipment was tested through a series of disturbance simulations, and the results are presented.

ASSUNTO(S)

descarga atmosférica electrical network voltage surge overvoltage rede elétrica ruído eletrical noise sobretensão lightening surto de tensão

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