DEVICE FOR MEASURING ISOLATION RESISTANCE Russian patent published in 2006 - IPC G01R27/16 

FIELD: electro-measuring equipment, in particular, automated control systems, possible use when controlling resistance of isolation of electric circuits in radio-technical goods.

SUBSTANCE: operation of device for measuring electric resistance of isolation in electric wires and cables of networks under direct current voltage includes digitizing and recording potential of body bus prior to beginning of effect on capacitor chain being measured of known nominal. After finishing evaluation of transit process, charged restorative capacitor is connected to body bus, which restores potential of body bus up to recorded value.

EFFECT: minimal time between measurement cycles due to usage of restorative capacitor, digital-analog converter and comparator as element for comparing body potential changing during restoration process and recorded original body potential.

4 dwg