Rogowski coil uniformly wound with enameled wire and winding method thereof

Abstract

The invention discloses a Rogowski coil uniformly wound by an enameled wire, which comprises a skeleton, an enameled wire and a ring-shaped body composed of a silicone tube arranged sequentially from the inside to the outside, the enameled wire is wound on the skeleton, and joints are provided at both ends of the enameled wire. Compensation coil and lead-out wire are arranged inside, one end of the compensation coil is connected to the enameled wire, and the other end is connected to the lead-out wire; the surface of the skeleton is provided with a spiral winding groove, and the side wall and bottom wall of the winding groove are arranged to reduce the winding of the enameled wire The rolling body of constant friction is made of nylon material, and the outer surface of the silicone tube is provided with a marking layer, and the marking layer is marked with a spiral line matching the winding groove. The present invention can ensure that the enameled wire is evenly wound on the skeleton by prefabricating a concave winding groove on the skeleton, and setting rolling bodies in the winding groove can avoid abrasion of the enameled wire during threading, and the winding process is simple And effective, it can be wound very well without a winding machine, and it can be wound by manual and mechanical methods.

Description

technical field [0001] The invention relates to a Rogowski coil uniformly wound by an enameled wire and a winding method thereof. Background technique [0002] With the development of social economy, electric energy, as the main energy source in modern society, is more and more closely related to people's life and production and construction. With the rapid development of EHV and UHV power transmission and transformation technologies, the capacity and quantity of power equipment have increased significantly, and the scale of power grids has gradually expanded. The operation of the modern power system must not only ensure the quality of qualified power supply, but also ensure the stable and reliable power generation and power supply capacity. The power transformer is one of the most important equipment in the power system, and it is particularly important to improve the operation reliability of the power transformer. On-line monitoring of transformers can detect transformer...

AI Technical Summary

Problems solved by technology

The Rogowski coil is born from the application, and the Rogowski coil itself cannot be a completely ideal device, and a certain phase error will be caused by the manufacturing process, installation method, etc.

The current ways to improve the accuracy include: uniform wiring, increasing the winding density of the enameled wire, adding return turns, etc.; uniform wiring and increasing the winding density of the enameled wire can play a good role in suppressing the parallel interference magnetic field to improve the accuracy. role; but how to better ensure the uniformity of winding, there is no good way

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