| 摘要 |
FIELD: measurement technology. ^ SUBSTANCE: device is used for measurement, inspection and signaling on reduction in resistance of isolation in ac and dc power networks. It can be used for measurement and inspection of resistance of isolation at ships, vessels, mines, underground, oil industry, namely, everywhere where there are split electric power networks isolated from earth. Device has first and second diodes, first, second and third electronic switches, first and second analog signal storing units, first and second differential amplifiers, electronic voltage divider, first and second dc voltage dividers, generator and control signals former provided with two outputs. There are also new links between members introduced to inspect resistance of isolation of dc and ac power networks. ^ EFFECT: improved reliability of inspection. ^ 1 dwg |
