Special connection terminal for grading ring

Abstract

The invention discloses a special connection terminal for a grading ring. The special connection terminal comprises a connection terminal I and a connection terminal II which are symmetrically arranged, wherein the connection terminal I comprises a connection plate I and an omega-type connection terminal I connected with the lower end of the connection plate I; bolt holes A are arranged in a panel of the connection plate I; a rectangular slot I is transversely arranged in one side of the connection plate I at the lower side of each bolt hole A; the upper end of the omega-type connection terminal I is connected with the lower end of the connection plate I through a horizontal connection panel; bolt holes B for tightening a high-voltage phase line leading-out terminal are arranged in two side panels of the omega-type connection terminal I separately; and the two side panes of the omega-type connection terminal I are parallel to the connection plate I. The connection terminal only needs to be installed once, does not need to be dismantled when the grading ring is installed; the grading ring is firmly installed; connection is convenient; the test security coefficient is improved; and the special connection terminal is suitable for multiple casing leading-out terminals which need to be provided with the grading ring.

Description

technical field [0001] The invention belongs to the technical field of installation of AC and DC transformers and reactors, and in particular relates to a terminal specially used for voltage equalizing rings of power equipment with bushings. Background technique [0002] When carrying out high-voltage tests on ultra-high and ultra-high voltage AC-DC transformers and reactors, often because the test voltage level of the test product is too high, it is necessary to add a voltage equalizing ring or a voltage equalizing cover to the outgoing terminal of the test product to meet the test requirements. For the convenience of the test, the pressure equalization ring is generally used for pressure equalization. The existing installation sequence of the voltage equalizing ring is as follows: 1. Dismantle the transformer terminal; 2. Set the voltage equalizing ring on the transformer outlet terminal; However, during the test wiring, the grading ring of this kind of transformer is eas...

AI Technical Summary

Problems solved by technology

However, during the test wiring, the voltage equalizing ring of this kind of transformer is easy to loosen, the wiring is more difficult, and problems such as interference are prone to occur during the test process, and there are also certain potential safety hazards

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