| 摘要 |
FIELD: electricity. ^ SUBSTANCE: high-voltage transducer of alternating voltage in direct voltage is related to procedure of electric equipment insulation and electric wire testing. It is achieved by adding to transducer circuit limiting resistor and two measurement instruments that control voltage at the outlet and leakage current, and also by observance of conditions, when power of step-up transformer of transducer is accepted as equal to power at the outlet of transducer with tested object insulation resistance that is equal to half of permissible, and capacities of capacitors of transducer voltage doubler and current at the outlet of transducer that is regulated with safety conditions are accepted as equal to 20% from design (permissible) value. Invention may be used for testing of objects with both one or several nominal voltages, and also for detection of safety margin of insulation of single-type electric equipment, for instance, traction engines when selecting place of their installation in traction electrical equipment in order to increase its reliability. ^ EFFECT: possibility to use as more sensitive, than existing megaohmmeter and as more portable and safe disruption device. ^ 3 cl, 2 dwg |
