Test special voltage equalizing ring which can be adjusted with voltage equalizing radius

Abstract

The invention discloses a test special voltage equalizing ring which can be adjusted with the voltage equalizing radius. The test special voltage equalizing ring comprises a test special voltage equalizing ring body, a supporting plate arranged inside the test special voltage equalizing ring, three supporting bars which have the same structure and the same size and mutually form an angle of 120 degrees, a support bar with a sliding rail, three hooks having the same structure and the same size, a pulling ring and a lifting hook; the hooks are corresponding to the supporting bars; the center ofthe supporting plate has a through hole; one ends of the three supporting bars are connected to the shared supporting plate, and the other ends of the supporting bars are connected to an inner wall ofthe test special voltage equalizing ring. The test special voltage equalizing ring adopts spring hooks, and the test special voltage equalizing ring can open the hooks by using its own gravity duringhoisting; after the hooks are hooked to the running voltage equalizing ring, springs naturally contract to make the hooks tighten outward along the voltage equalizing radius; the test special voltageequalizing ring be used for various running voltage equalizing rings having different voltage equalizing radiuses, is convenient and stable to fix, is very convenient to remove, and can greatly improves the working efficiency of high voltage electrical test.

Description

technical field [0001] The invention relates to the technical field of high-voltage electrical test equipment, in particular to a test-specific pressure equalizing ring that can be adjusted along with the equalizing radius. Background technique [0002] At present, in the on-site high-voltage electrical tests of power plants and substations, especially in the field tests of long-term induction withstand voltage and partial discharge detection of high-voltage electrical equipment such as transformers and circuit breakers, the test equalizing ring is often used. Because the field test voltage of these high-voltage electrical equipment often reaches 1.5 times or even higher than the normal operating voltage, and the partial discharge detection test requires strict control of the background discharge amount detected by the environment to prevent background interference from causing misjudgment of the test data, so it is necessary to avoid Corona discharge caused by distortion of...

AI Technical Summary

Problems solved by technology

In the existing operation, the pressure equalizing ring for operation is often removed first, and then the special pressure equalizing ring for the test is installed. After the experiment, the special pressure equalizing ring for the test is removed, and finally the pressure equalizing ring for operation is reinstalled. The process requires two disassembly and assembly processes, which will inevitably lead to unnecessary extension of the construction period; and there is a risk of accidentally touching the live spacer or high-voltage insulating bushing during the entire process of disassembly and installation, so the safety is low

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