MODE OF CONTROLLING REDUCTION OF RESISTANCE OF INSULATION IN A LINE OF FEEDING VOLTAGE TO A LOAD AND AN ARRANGEMENT FOR ITS EXECUTION Russian patent published in 2007 - IPC G01R31/02 

FIELD: the invention refers to measuring technique.

SUBSTANCE: the essence in that constant voltage from the primary feeding source is attached to the load and the current leakage is measured in the feeding line. Then at the switched on primary feeding source of voltage they attach to the voltage feeding line an additional feeding source and measure once more the summary current leakage in the feeding line. The difference of made metering is defined and the received value is compared with permissible value of leakage. The arrangement has a main source of voltage connected to the line of feeding voltage to a load (for example, a pressure sensor). The plus output of the source is connected through a commute arrangement to the minus output of the additional source of voltage. The second output of the commute arrangement is switched to the plus output of a stabilizer diode connected with the minus output with the plus output of the additional source and with input of a divisor of voltage. The divisor is connected with the scheme of the analysis of measuring.

EFFECT: provides possibility to control the resistance of insulation without disconnection of a working source at simplification of measuring means and increasing of accuracy of control.

2 cl, 2 dwg