A closed busbar bridge grounding ring in substation

Abstract

The invention relates to the technical field of power grid operation maintenance, in particular to an enclosed busbar bridging ground ring for a transformer substation. The enclosed busbar bridging ground ring for the transformer substation is characterized by comprising a busbar connecting device at the bottom, a connecting shaft device above the busbar connecting device, and a ground ring fixed above the connecting shaft device, wherein two symmetrically placed shaft brackets are fixed on the busbar connecting device; a bolt hole is formed in the middle part of each of the shaft brackets; the connecting shaft device is arranged in the bolt holes; the connecting shaft device comprises a threaded rod as well as a pressure spring and a nut arranged on the threaded rod; gaskets are arranged on two sides of the pressure spring; a vertical hole is formed in the bottom of the ground ring; and the threaded rod passes through the vertical hole to fix the ground ring on the gaskets. The enclosed busbar bridging ground ring for the transformer substation is simple in structure and reasonable in design, the power supply reliability is improved, and the power failure time slot is shortened, so that the customer complaints are obviously decreased.

Description

technical field [0001] The invention relates to the technical field of grid operation inspection, in particular to a grounding ring of a substation enclosed bus bridge. Background technique [0002] Substation busbar bridges must be closed, because if the busbar bridges are exposed, due to small animals, other foreign objects, air pollution or weather, it is easy to cause vicious accidents such as grounding and phase-to-phase short circuits, which seriously affect the safe operation of the power grid. Substation lean management and countermeasures require that the substation bus bridge must be sealed with insulating thermoplastic materials, and a place for hanging the ground wire must be reserved, and the outside should be wrapped with a removable special sheath to achieve the purpose of completely sealing the bus bridge. [0003] When the equipment is overhauled and inspected and the ground wire is connected, the special insulating sheath of the bus bridge must first be rem...

AI Technical Summary

Problems solved by technology

[0003] When the equipment is overhauled and inspected and the ground wire is connected, the special insulating sheath of the bus bridge must first be removed with an insulating tool. After the overhaul, the exposed part must be wrapped with a special sheath. Remove the sheath, and then carry out a series of safety measures such as electrical inspection. Removing the sheath with electricity not only has certain potential safety hazards, but also takes up a lot of maintenance time

It is time-consuming and labor-intensive to install a special insulating sheath after the overhaul, and there is a great potential safety hazard; frequent disassembly and assembly of the insulating sheath can easily damage the sheath and cause unnecessary economic losses

Shortening the power outage time, improving the efficiency of equipment maintenance, and ensuring the safe and stable operation of the power grid are the current high-quality service requirements. However, due to the closed treatment of the busbar bridge in the substation, it is more difficult for the work of power inspection, hanging and removing the grounding wire, and removing and installing the busbar bridge. The special insulating sheath greatly delays the progress of maintenance work

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