Research on Multi-function Insulation Resistance Tester

Previous measuring instruments have a number of defects (such as: the output voltage is prone to large variations and can be measured in a narrower interval, etc.), has faced the situation of being replaced by new instruments. In order to make up for the megohmmeter function of a single shortcomings, and completely eliminate its difficult to measure the real polarization index of the equipment under test and the absorption ratio and other phenomena, this paper gives a kind of intelligent insulation resistance tester, the instrument supplements the function of the defects, can maximize the solution to the traditional megohmmeter existing problems. For a variety of insulation requirements of the equipment under test, the tester can be adjustable DC high-voltage power supply to give the appropriate test voltage, can be applied to a number of voltage levels, to meet the measurement needs of different electrical equipment, the measurement of the real insulation resistance of electrical equipment. After the relevant personnel enter all the parameters used in the test, the instrument can quickly measure the real polarization index and absorption ratio of the equipment under test, compared with the traditional megohmmeter, greatly facilitating the work of the test personnel, but also reduce the traditional measurement methods of manual timing and reading process caused by the error. The QZ-M514 Multi-function Insulation Resistance Tester product from Qinzhou Power Supply Bureau provided the inspiration for this design.