Surface wind pressure gauge for transmission conductor

Abstract

The invention discloses a surface wind pressure gauge for a transmission conductor, which comprises an airtight protection shell and a wind pressure measuring device; the airtight protection shell is provided with a plurality of air inlets; the wind pressure measuring device is fixed in the airtight protection shell and comprises a wind pressure sensing module, a circuit control module, a wireless communication module and a power management module; the circuit control module is respectively connected with the wind pressure sensing module, the wireless communication module and the power management module; the wind pressure sensing module comprises a pressure stabilizing box and a plurality of wind pressure sensors each of which comprises a first air inlet and a second air inlet; the first air inlets are connected with the pressure stabilizing box by guide pipes and the second air inlets are connected with the air inlets of the airtight protection shell by guide pipes. The surface wind pressure gauge adopts a pressure difference measuring manner, can measure the stress condition of a section of a conductor or an ice-coated conductor during galloping in real time, and provides reliable data support for research of a galloping mechanism of the transmission conductor and the development of an anti-galloping device.

Description

Technical field [0001] The invention relates to the technical field of on-line monitoring of power transmission and transformation equipment, in particular to a pressure difference sensor-based wind pressure measuring instrument on the surface of a power transmission wire. Background technique [0002] Most of the transmission lines in power transmission and transformation projects are in an outdoor environment. Due to the influence of wind factors, galloping of transmission wires is inevitable. Galloping of transmission conductors is an important factor threatening the safe operation of transmission lines. In severe cases, it may cause various hazards such as tripping, wire arc burns, damage to fittings, wire breakage, disconnection, and collapse of transmission towers. These accidents will cause major economic consequences. Loss and social impact. [0003] At present, the research on the galloping mechanism of power transmission wires by those skilled in the art is not perfect a...

AI Technical Summary

Problems solved by technology

[0003] At present, the research on the galloping mechanism of transmission wires by those skilled in the art is not perfect, and cannot explain all kinds of galloping phenomena that occur

For example, when the wind direction and the line direction are at an angle of 20°~30° in the actual transmission line, thin (no) ice-coated conductor galloping and corona galloping have occurred, which cannot be explained by the traditional Den Hartog or O Nigol theory

However, there are many problems in the anti-dancing device designed based on the traditional transmission wire galloping theory, and the anti-dancing effect is often not ideal. For example, the wind field simulated by the wind tunnel test for the transmission wire is far from the actual situation. lack of

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