On-line intelligent monitoring module for intelligent transformer substation GISs (gas insulated switchgear)

Abstract

The invention discloses an on-line intelligent monitoring module for intelligent transformer substation GISs, which comprises an SF6 monitoring function module, a circuit beaker monitoring function module, a capacitive equipment monitoring function modules for mutual inductors and the like, a lightning arrester monitoring function module, a station level communication function module and a human-machine interface function module. By means of the function modules, the on-line intelligent monitoring module for intelligent transformer substation GISs can monitor the gas insulation condition in a gas insulated metal-enclosed switchgear (GIS) and the operating condition of the primary equipment of each power system on line, consequently, power system operation maintainers can fully know the operating state of the GIS in real time and accordingly arrange the operation and maintenance time of the equipment, the safety of the operation of the GIS is enhanced, the safe operation of a power grid is effectively guaranteed, moreover, the maintenance method for the GIS is changed from the conventional scheduled maintenance to state maintenance, the equipment maintenance cost is effectively reduced, and the benefit of a power grid operation maintenance enterprise is increased.

Description

technical field [0001] The invention relates to an intelligent substation GIS online monitoring intelligent component, which belongs to the technical field of electric equipment online monitoring. Background technique [0002] In the electric power industry, GIS refers to sulfur hexafluoride enclosed combined electrical appliances, which is called "Gas Insulated Switchgear" (Gas Insulated Switchgear) in the world, referred to as GIS, which combines all equipment in a substation except transformers, including Circuit breakers, isolating switches, grounding switches, voltage transformers, current transformers, surge arresters, busbars, cable terminals, inlet and outlet bushings, etc. are organically combined into a whole through optimized design. [0003] With the rapid development of smart grid technology in my country, smart substations, as an important part of smart grid, have gradually become popular in China. Due to its small footprint, high reliability, strong security,...

AI Technical Summary

Problems solved by technology

SF6 gas leakage, external moisture infiltration, presence of conductive impurities, aging of insulators and other factors may lead to internal insulation failure of GIS

At the same time, due to the fully enclosed structure of GIS, once an insulation fault occurs inside, fault location and maintenance are very difficult, and the maintenance period is long, which will directly affect the normal operation of the substation and even affect the safety and stability of the regional power grid

Images