Test platform and test method of mechanical reliability of three-post insulator of GIL device

Abstract

The invention discloses a test platform of mechanical reliability of a three-post insulator of a GIL device. The test platform comprises a test platform for verifying the mechanical reliability of a fixed three-post insulator of a horizontally arranged GIL form in a horizontal direction dynamic plug-and-pull test, and a test platform for verifying the mechanical reliability of the fixed three-postinsulator of a corner-arranged GIL form in a vertical direction dynamic plug-and-pull test. The platform implements the plug-and-pull of a sliding three-post insulator GIL form conducting rod on a contact pedestal through a driving machine, and simulates the actual working conditions of reciprocating stress of the fixed three-post insulator caused by the thermal expansion and contraction deformation of a GIL pipeline in an actual operation process and abnormal stress of the fixed three-post insulator after foundation settlement of the GIL; 15,000 times of reciprocating plug-and-pull mechanical verification tests and insulation verification are carried out by using the test platform, so that the influence of the thermal expansion and contraction of a GIL shell and the foundation settlementon the service life of the fixed three-post insulator can be effectively evaluated, and the deterioration of an insulating material at an insert of the fixed three-post insulator is prevented.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to a mechanical reliability test platform and a test method for three-pillar insulators of GIL equipment. Background technique [0002] In the actual operating conditions of the GIL pipeline busbar, affected by the change of the ambient temperature, there is a small relative slip between the contact conductor and the contact (millimeter level or even below), and the relative movement of the contact conductor and the contact will produce a reciprocating motion at the contact part. Insertion force. Since the conductor is rigidly connected to the fixed three-post insulator, the force of this continuous reciprocating motion will be transmitted to the fixed three-post insulator. In addition, due to the large length of GIL equipment arrangement, GIL is easily affected by foundation settlement. At present, the GIL mechanical test only carries out the axial and radial sta...

AI Technical Summary

Problems solved by technology

In addition, due to the large length of GIL equipment arrangement, GIL is easily affected by foundation settlement

At present, the GIL mechanical test only carries out the axial and radial static pressure tests of the three-pillar insulator, and does not take into account the influence of the thermal expansion and contraction of the pipeline busbar and the foundation settlement on the life of the three-pillar insulator

Images