Detection monitoring system of power transmission and transformation device of power distribution network

Abstract

The invention discloses a detection monitoring system of a power transmission and transformation device of a power distribution network. The detection monitoring system comprises a centralized controlSCADA system, a relay protection and fault information management system and a power transmission circuit fault range finding system. Information interaction is performed between a safety monitoringsystem and an asset management system of the power transmission and transformation device. According to the invention, perception of panoramic states of a 500kV power grid is achieved; an operator iscapable of ensuring smooth carrying out of services of operation, maintenance and repairing of the 500kV power transmission and transformation device according to required remote metering and remote signaling information and relay protection and fault recording information. A monitoring center automation system which takes a public information platform as a core comprises subsystems of the centralized control SCADA system, the relay protection and fault information management system and the power transmission circuit fault range finding system, and is capable of interacting with a provincial dispatching EMS system, thereby achieving rapid initialization of automation of the centralized control center. The detection monitoring system interacts with the asset management system and an operation management system, and supports optimized asset management and analysis application.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation, in particular to a detection and monitoring system for power transmission and transformation equipment in a distribution network. Background technique [0002] Power transmission and transformation is the transmission of power from the power plant to the grid. It increases the low voltage (such as 500,000 volts) for remote transmission. The higher the voltage of the same power, the smaller the current, and the smaller the current, the smaller the loss on the line. Generally, in the power industry, 35kV~1000kV is called power transmission and transformation, and 10kV and below is called distribution network. Power transmission and transformation can be simply divided into two main parts: 1. Transmission lines. 2. Substation. Generally, the voltage sent from the power plant is relatively low. If it is not boosted, then according to the ratio of AC UI, the current on ...

AI Technical Summary

Problems solved by technology

[0003] Substation is a relatively important part of the power system. Important equipment such as high-voltage switchgear, bus connectors, cable connectors, power transmission and transformation line connectors, and outdoor knife switches in substations have high requirements on the environment, and during long-term operation It is easy to generate heat due to insulation aging and excessive contact resistance, which will lead to fires and large-scale power outages, resulting in major economic losses and serious social impacts

In related technologies, the temperature, health status and environmental monitoring of substation equipment can only be carried out by manual on-duty through wired methods, and the monitoring efficiency and reliability are low; the current centralized control system engineering of substations is basically based on the automation systems of the dispatching center. According to the discrete design of the substation application, this architecture design is difficult to give full play to the overall advantages of the monitoring center; second, there are various disadvantages for the safety monitoring needs of 500 kV ultra-high voltage power transmission and transformation equipment

Images