Installation method of optical fiber current transducer in power distribution network automation

Abstract

The invention relates to an installation method of an optical fiber current transducer in power distribution network automation and belongs to the technical field of the optical fiber current transducers. The installation method comprises the following steps: coating silica gel on a needed installation position; closely fitting the concave surface of a sensing head on the silica gel and tightly binding by a binding belt; downward leading an optical fiber along a cable; separating the optical fiber from a conductor through a heat-resisting gasket and binding by the binding belt; when the optical fiber enters an armor or a shielding layer region, not utilizing the gasket; paving the optical fiber along a selected path and fixing at a proper position by utilizing the binding belt; carrying out polishing treatment on the section of the tail of the optical fiber through a special process. In an operation process, the cleanness of the section of the tail of the optical fiber needs to be kept, and the section is not in contact with mud, oil stains and the like; the section is not touched by fingers, so that a condition that refraction and reflection of light are caused by pollutants and the transmission of the light is influenced is avoided; a wide measurement range, high precision, a wide frequency band and rapid response of the optical fiber current transducer can be ensured; meanwhile, requirements on measurement and protection can bet met; whole insulation and high-temperature resistance are realized; the reliability of a power supply system is improved, and energy saving and environment friendliness are realized.

Description

technical field [0001] The invention relates to an installation method of an optical fiber current transformer in distribution network automation, and belongs to the technical field of current transformer applications. Background technique [0002] With the large-scale and rapid development of the national economy in the past 20 years, the demand for electricity has increased sharply, the transmission capacity of the power system is increasing day by day, and the voltage level has been developed to 500kV and will develop to a higher voltage level. Therefore, the accurate measurement of the primary current is of great significance in the operation and protection of the relay. In the past, the current measurement mainly adopts the traditional electromagnetic current transformer with iron core. However, the traditional electromagnetic current transformer is showing more and more difficult technical difficulties due to its working principle. In the face of many problems, a new...

AI Technical Summary

Problems solved by technology

If there is a deviation in understanding, excessive pursuit of the narrow fault handling function (DA), and the failure to establish an overall overall view, the comprehensive benefits of the distribution network automation system cannot be displayed

[0008] D. The central master station system has not been well integrated into the comprehensive information system, and has failed to serve the planning, operation, and maintenance of the distribution network; the lack of overall consideration of the entire distribution dispatching management system has greatly limited the distribution network. Ease of use and practicality of electric automation system