Multifunction testing device for gas-filled switch cabinet

Abstract

The invention discloses a multifunction testing device for a gas-filled switch cabinet. The multifunction testing device comprises a test cable head, a transition flange and a pluggable inner cone insulator which are connected to a cabinet body filled with an insulating medium with a certain pressure, wherein the pluggable inner cone insulator is mounted in the cabinet body and connected with a maim loop in the cabinet body; the top end of the test cable head is provided with a connecting assembly which is mounted with the pluggable inner cone insulator in an adaptive way; the transition flange is mounted on the connecting assembly in an adaptive way; the connecting assembly of the test cable head is mounted on the pluggable inner cone insulator by the transition flange and connected with the main loop inside the cabinet body by the pluggable inner cone insulator; a wiring terminal at the tail end of the test cable head is connected to a test terminal of test equipment. The detection of a plurality of test items is realized, the mounting and detaching work in the checkout procedure is reduced, the visual ground connection of a primary loop is increased, the function is safer, and the actual application requirements of users can be met.

Description

technical field [0001] The invention relates to a test device for a switch cabinet in a power system, specifically a multifunctional test device suitable for an inflatable switch cabinet with a voltage level of 12kV-40.5kV and a current level of 630A-2500A. Background technique [0002] The inflatable cabinet is a switchgear that seals the main electrical components in the box and fills the sealed box with a certain pressure of gas as the insulating medium. When testing the performance of the switchgear, because the main components are sealed in the box, the external The input for detecting current and voltage can only be connected to the main circuit of the switchgear by installing a specific test device. Most of the existing inflatable switchgear test devices are designed for a specific test, so it is often necessary to install and replace a variety of test devices on site to complete a series of acceptance, inspection, and maintenance work. For example, the insulation tes...

AI Technical Summary

Problems solved by technology

Most of the existing inflatable switchgear test devices are designed for a specific test, so it is often necessary to install and replace a variety of test devices on site to complete a series of acceptance, inspection, and maintenance work. For example, the insulation test requires the installation of a voltage test Cable, main circuit resistance measurement and current transformer measurement need to install current test device, the operation process is cumbersome and time-consuming

[0003] With the gradual promotion of the application of inflatable switchgear at home and abroad, the inspection and maintenance of the product at the operation site requires a multi-functional test device that meets the actual requirements, which simplifies the acceptance process, and because the primary circuit of the inflatable cabinet is fully sealed The protective visual grounding function of the primary circuit cannot be solved during the process

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