Earthquake-proof safety connecting device of flexible bus connecting device of transformer station

Abstract

The invention belongs to the field of transformer equipment, and particularly to an earthquake-proof safety connecting device of flexible bus connecting device of transformer station. The earthquake-proof safety connecting device of flexible bus connecting device of transformer station is obtained through extending a transition plate at a part where the flexible bus is connected with the device. The planar shape of the transition plate of an extension is an arc which dents inwards at the two sides. The dimension of a minimum cross-section of the transition plate is determined according to theearthquake resistance of the bus connecting device, and the dimension at the minimum cross-section must be smaller than the dimension of the cross-section, which is allowed by the earthquake resistance of the bus connecting device. The earthquake-proof safety connecting device of flexible bus connecting device of transformer station has the advantages of no effect to the electric performance, easymanufacturing, convenient installing and remarkable effect, can be widely used for the part where the device in the transformer station is connected with the flexible bus, can obtain a purpose of preventing a fact that the electrical equipment is drawn and damaged by the flexible bus under the earthquake function, and has a function of protecting the expensive electrical equipment.

Description

Technical field [0001] The invention belongs to the technical field of safe substation equipment, and specifically relates to a flexible busbar equipment connection device with seismic performance. Background technique [0002] In order to meet the power requirements, various devices in the substation are usually connected by bus bars. The bus is divided into two forms: soft bus and hard bus. The hard bus bar is generally composed of aluminum tubes. One end of the hard bus bar is connected to the equipment through an expansion joint that allows a certain deformation. The other end of the hard bus bar is connected to the equipment by passing the hard bus bar through two clamps with holes fixed on the top of the equipment. . Although the original purpose of the expansion joint is to adapt to temperature deformation, it can allow a certain relative displacement between the equipment under the action of an earthquake, and can absorb and dissipate seismic energy. This kind of expan...

AI Technical Summary

Problems solved by technology

However, this method cannot completely guarantee that the equipment will not be damaged by the soft bus, because the coupling between the soft bus and the equipment may cause dynamic instability, which will cause a large pulling force; on the other hand, due to Requirements for electrical insulation distance, the slack of soft busbar is limited

At present, the interaction between the soft bus and the equipment has not been well grasped and controlled

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