Portable suspension insulator withstand voltage test system and its withstand voltage test method

Abstract

A portable suspension insulator voltage insulation test system and a voltage insulation test method thereof relate to a voltage insulation test system. The current insulator voltage insulation test is low in efficiency and high in safety loophole. The portable suspension insulator voltage insulation test system comprises a voltage regulator connected with a 220V alternating current power supply and is characterized by also comprising a first excitation transformer, a second excitation transformer, two insulation support pillars and magnetic connection rods; the upper part of each magnetic connection rod is connected with a lead; one magnetic connection rod is magnetically connected with a suspension insulator metal part; adjacent magnetic connection rods are arrayed in a staggering mode to form two lines of magnetic connection rods; the two lines of magnetic connection rods are respectively connected by a first lead and a second lead which are respectively connected with the first excitation transformer and the second excitation transformer; the two insulation support pillars are arranged at two sides of an insulator string and the first lead and the second lead are respectively erected at the tops of the two insulation support pillars. According to the technical scheme, the preparation work time and workload are greatly reduced, the efficiency is high and the safety is good.

Description

technical field [0001] The invention relates to a withstand voltage testing system. Background technique [0002] Traditional porcelain bottle pressure resistance method: Since 60kV AC voltage is applied to one end, the voltage of the metal flange to the ground is also 60kV, which causes the insulation breakdown of the flange to the ground during the test. Therefore, the porcelain bottle must be hung on a special shelf for pressure resistance. Hanging the heavy porcelain bottle greatly increases the workload of the experimenter. Moving the porcelain bottle back and forth not only consumes a lot of physical strength of the construction workers, but also wastes a lot of time in preparation. In work, the efficiency of this operation is low. At the same time, the thin iron wire connecting the flange and the high-voltage lead wire should be separated enough to meet the safety distance of 60kV, which increases the difficulty of the test. These long-term preparations are the bigg...

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Problems solved by technology

[0002] Traditional porcelain bottle pressure resistance method: Since 60kV AC voltage is applied to one end, the voltage of the metal flange to the ground is also 60kV, which causes the insulation breakdown of the flange to the ground during the test

Therefore, the porcelain bottle must be hung on a special shelf for pressure resistance. Hanging the heavy porcelain bottle greatly increases the workload of the experimenter. Moving the porcelain bottle back and forth not only consumes a lot of physical strength of the construction workers, but also wastes a lot of time in preparation. In terms of work, the efficiency of the operation is low

At the same time, the thin iron wire connecting the flange and the high-voltage lead wire should be separated enough to meet the safety distance of 60kV, which increases the difficulty of the test

These long-term preparations are the biggest drawback of the traditional test method, resulting in a daily test volume of less than 100 tablets

At the same time, the high test voltage and the fatigue of construction personnel also increased the safety risk on site during the test

Such a test method with low efficiency and high safety hazards obviously cannot meet the demand for tens of thousands of porcelain bottles in new substations today.

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