Electrode gap adjustment device used for insulation oil withstand-voltage detection and adjustment method

Abstract

The invention provides an electrode gap adjustment device used for insulation oil withstand-voltage detection and an adjustment method. The device includes an upper panel, a left fine-adjustment mechanism, a right fine-adjustment mechanism, a front side edge support plate, a rear side edge support plate, a double-plate measurement mechanism and a scale observation mechanism. Upper ends of the twoside edge support plates are connected with a front side edge and a rear side edge of the upper panel. Lower ends of the side edge support plates are supported on an oil cup glass frame. A dial is arranged at a center position of the upper panel. The scale observation mechanism used for observing a scale is installed above the dial. The fine-adjustment mechanisms are connected with a left side anda right side of the upper panel. Upper ends of the two fine-adjustment mechanisms are fixedly connected with lower surfaces of the left side and the right side of the upper panel. Adjustment screws are installed at lower ends of the fine-adjustment mechanisms, and are used to adjust height of the upper panel in a vertical direction. According to the device, a geometric principle is used for proportional enlargement on displacement vectors of two flat plates, minute spacing and displacement are enlarged, use of an operator is facilitated, and accuracy of electrode discharge gap adjustment is guaranteed.

Description

technical field [0001] The invention relates to the field of insulating oil withstand voltage detection, in particular to an electrode gap adjustment device and adjustment method for insulating oil withstand voltage detection. Background technique [0002] The breakdown voltage test of insulating oil is to make the insulating oil use its own insulating properties to prevent the occurrence of electron collapse under the action of an alternating electric field. When the voltage is high enough, the resistance of the insulating oil between the two electrodes suddenly drops sharply, and the current increases sharply. , conduction occurs between the electrodes, and the insulating oil is broken down at this time. The alternating voltage when this breakdown phenomenon occurs is called "breakdown voltage", which is an important indicator of the electrical strength of insulating oil. [0003] In the insulating oil breakdown voltage tester, there are many factors that affect the insul...

AI Technical Summary

Problems solved by technology

When the conventional gap gauge is used to detect the electrode spacing, because the insertion angle of the gap gauge cannot be accurately grasped, the measurement data of the electrode gap of the spherical cover is often inaccurate. changed

However, the precision required for the electrode spacing of the withstand voltage test is high. In this case, the result of the insulating oil withstand voltage test may not be very accurate, resulting in an increase in uncertainty.

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