Projets&Actualités

With the increasing demand for electricity, power supply reliability requirements of the power system is becoming higher and higher, many power supply systems have two or more power supply lines. Automatic switching device for backup power supply can effectively improve the reliability of power supply, this type of device can automatically and quickly put the backup power supply into operation or switch the user to the backup power supply after the working power supply is disconnected due to a fault. This paper introduces AM5-DB low-voltage automatic switching device for backup power supply, which can provide corresponding protection functions for different power supply modes in Dongting substation project, and can greatly improve the reliability, safety and power supply quality of substation operation, which is conducive to the realization of comprehensive automation of the substation, and the realization of unmanned or fewer people on duty.

This article analyzes the connotation and main characteristics of the ubiquitous power Internet of Things, and conducts a comprehensive discussion on the construction goals, basic architecture, key technologies and future development strategies of the ubiquitous power Internet of Things.

As a part of the urban public transportation system, ailway transportation has been extensively developed and expanded in the past few decades. It plays an important role in solving urban traffic congestion, reducing environmental pollution, and improving urban sustainability. With the advancement of science and technology, ailway transportation systems are constantly introducing new technologies and innovations to improve operating efficiency and passenger experience, save energy and reduce operating costs.
The monitoring of air-conditioning circuits in rail transit train carriages is one of the important aspects to ensure the comfort and safety of passengers in the train. Monitor the electrical parameters of the air conditioning circuit in real time to determine the operating status of the air conditioner, detect potential faults, and take timely measures when power problems occur to ensure the operation of the air conditioning system. At the same time, monitoring data of the air conditioning loop should be recorded for subsequent analysis and trend observation, which can help identify the long-term performance and health of the system.

In recent decades, China's modern economy has continued to develop, and computer technology, information technology and other related industries have also made rapid progress.As commercial, residential and public buildings continue to increase their requirements for intelligent management and energy conservation, power monitoring systems have begun to gradually penetrate into people's daily lives and play an irreplaceable role.The optimization of the economic atmosphere has generally increased people's demands for the reliability, safety, comfort, and efficiency of office and living environments. Intelligent buildings have emerged as the times require, successfully achieving the perfect combination of quality of life and information services, and becoming the construction industry of the 21st century. mainstream.Intelligent buildings are not only the embodiment of the country's comprehensive national strength and technological level, but also reflect the social development's concern for human nature.

With the promotion of smart substations, the power system adopts reliable, integrated, and environmentally friendly smart equipment, relying on the digitization of station-wide information, standardization of information sharing, and networking of communication platforms to automatically complete the collection, measurement, protection, and monitoring of substation equipment information. For basic functions such as control, the traditional "visible" and "tangible" secondary circuit has become an "invisible" and "tangible" "black box", which increases the uncontrollability of substation operation, maintenance and maintenance. , this paper proposes a research plan for an intelligent substation operation and maintenance management platform. It can remotely control and control the substation relay protection. Enable remote online monitoring and intelligent operation and maintenance management of operation and maintenance stations and maintenance work areas.