A main transformer foundation for installing seismic isolation device in 500kv substation

Abstract

The invention provides a main transformer base for installing an isolation device for 500kV transformer substation. The main transformer base for installing the isolation device for 500kV transformer substation comprises a base substrate, a base installing part and a jack embedded part composed of a first embedded plate and an isolation device embedded part composed by fixedly connecting a second embedded plate and an embedded bolt sleeve, the bottom end of the base installing part is fixedly connected with the base substrate, certain distance is formed between two adjacent base installing parts, the top end of the base installing part is respectively and fixedly connected with the jack embedded part and the isolation device embedded part, the second embedded plate is opened with a locating hole connected with the embedded bolt sleeve, the embedded bolt sleeve is fixedly connected to the interior of the base installing part. The isolation device is easily fixed with the isolation device embedded part through the high strength bolt, the anti-knock stability of the main transformer device is raised, and the main transformer device and the isolation device can be conveniently installed, detected and replaced by the operators, the structure is simple and the cost is saved.

Description

technical field [0001] The invention relates to the field of ultra-high voltage power transmission infrastructure, in particular to a main transformer foundation for installing shock isolation devices in 500kV substations. Background technique [0002] The main electrical equipment in a 500kV substation located in an area with a high seismic intensity of 8 degrees needs to meet the seismic capability of the seismic horizontal acceleration of 0.4g (where g is the acceleration of gravity, the same below). For the main transformer ("main transformer" For the abbreviation of , the same below), because of its large structural size, low center of gravity, and high mass, it is mainly sheared and deformed under earthquake action, which belongs to heavy and low equipment. When an earthquake occurs, the body of the main transformer body has an obvious seismic amplification effect on the porcelain casing on the top. Therefore, even the casing with anti-seismic design may withstand eart...

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