Seismic test model of UHVDC double-column coupled composite post insulator and its quality simulation method

Abstract

The invention discloses an ultra-high-voltage DC double-column coupled composite post insulator earthquake resistance test model and a quality simulation method. The ultra-high voltage DC double-column coupled composite post insulator earthquake resistance test model comprises an inner side pipe bus; two ends of the inner side pipe bus are provided with a single column test model; the single post test model comprises a support and a single column post insulator; the lower end of the single column post insulator is installed on the support; the upper end of the single column post insulator is provided with a counterweight; the upper end of the counterweight is provided with a hardware fitting; and two ends of the outer side pipe bus are connected to the hardware fitting of the single column test model of a corresponding terminal. The ultra-high-voltage DC double-column coupled composite post insulator earthquake resistance test model and the quality simulation method arrange the counterweight on the upper end of the single column post insulator which can effectively simulate an original grading ring and the outer side pipe bus on the top of the single column post insulator, have no influence on an earthquake resistance test, and is simple in structure and easy in test point distribution.

Description

technical field [0001] The invention relates to the technical field of substation equipment, in particular to an anti-seismic test model of an UHV DC double-column coupled composite post insulator and a quality simulation method thereof. Background technique [0002] With the development of my country's power transmission and transformation projects in the direction of high voltage, ultra-high voltage and ultra-high voltage, a large number of key substations are equipped in AC substations and DC converter stations. These key substations are generally supported by post insulators. Traditionally, the pillar insulators used in substations are mostly made of ceramic materials. Ceramic materials are brittle materials with a large elastic modulus, but poor impact resistance and ductility. Once tiny cracks are formed inside, it is easy to cause earthquakes Brittle fracture damage, and then cause damage to substation equipment. In recent years, composite post insulators have been g...

AI Technical Summary

Problems solved by technology

However, there are few studies on the seismic test of the coupling system of multiple single-column post insulators and pipe busbars, and there is no test model suitable for seismic tests.

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