FIELD: electricity.
SUBSTANCE: device to measure and monitor equivalent resistance of insulation of power DC electric circuits under working voltage insulated from ground (body) comprises a pulse generator with a switching key K1 at the outlet, supply, alarm and indication units, a shunt Rm. At the same time the device comprises a pulse shaper connected to the pulse generator with keys K2 and K3 at the outlet, the first and second units of analogue signal sampling and storage (UASSS), a differential amplifier, an electronic voltage divider with a multiplier of voltage at the outlet.
EFFECT: higher reliability of measurement and monitoring of insulation resistance of monitored DC electric circuits with voltage of up to 1,000 V, high-voltage DC circuits with voltage of above 1,000 V insulated from ground.
1 dwg
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