Testing device and testing method for spark voltage of electrolyte under non-critical state

Abstract

The invention discloses a testing device for spark voltage of electrolyte under non-critical state. The testing device is provided with a 1000V-T-V tester, a beaker, high-voltage electrolyte and an electrode foil. The middle part of the electrode foil is wrapped with a plurality of layers of insulation tapes, and the insulation tapes separate the electrode foil into a suspending area and a liquid precipitating area. The operation steps are as follows: 1) the suspending area of the electrode foil is connected with the 1000V-T-V tester, and an ammeter and a voltmeter are connected between the electrode foil and the 1000V-T-V tester in series; 2) a proper amount of high-voltage electrolyte is injected into the beaker according to the height of the liquid precipitating area of the electrode foil; 3) the electrode foil is placed and suspended in the electrolyte, and half of the insulation tape is immersed in the electrolyte; and 4) a power supply is switched on to input current of 5mA-10mA, and the voltage of the sparks of the electrolyte is tested. The safe surge voltage of the product at high temperature can be ensured by the variation of the sparks of the electrolyte at each temperature section, and the stability of the product at high temperature is ensured.

Description

technical field [0001] The invention relates to a test device and a test method for the flashover voltage of an electrolyte in a non-critical state. Background technique [0002] The existing method of testing the flashover voltage is as follows, such as figure 1 As shown, the more commonly used test method is the double anode test, but because this method is tested under normal conditions, there are many unreasonable points. The reason is that during the test, the contact surface between the test anode sheet and the electrolyte is exposed to the air, which is easy to ionize. At the same time, during the test, the air bubbles generated during the test make the liquid level of the electrolyte fluctuate, and even splash the liquid, so that the range of the test electrode is constantly changing. In terms of change, the mechanism shows that the electrical polarization is not synchronized, and the test results are flickering false image values. [0003] Such as figure 2 As sh...

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Problems solved by technology

[0003] like figure 2 As shown in the figure, it is a single anode test, and there are also problems such as test artifacts. The reason is that the foil electrode is fixed by the plexiglass splint, and the edge gap will also cause the measured area to fluctuate, and it will also become asynchronous at the edge, which is easy Edge ionization flicker, the same test value is false image value

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