EQUIVALENT INSULATION RESISTANCE MEASUREMENT TECHNIQUE FOR ELECTRIC LINES Russian patent published in 1994 - IPC

Abstract RU 2011999 C1

FIELD: electric measurement technology. SUBSTANCE: after each line pole is shorted out, upper and lower levels of threshold voltages are set by reducing instant voltage across shorting resistor at moment of its connection to respective line pole by value of preset reference voltage and its doubled value; voltage across shorting resistor is compared with threshold levels obtained and in the process time intervals between line pole shorting-out moment and moment when voltage across shorting resistor reaches threshold level are measured; equivalent insulation resistance is found from proposed equation. EFFECT: reduced measurement time. 5 dwg

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RU 2 011 999 C1

Authors

Pikulin G.E.

Osetrov V.S.

Melan'In E.I.

Dates

1994-04-30—Published

1991-07-12—Filed