Projets&Actualités

With the widespread use of electronic devices, non-linear loads are increasing, which results in that the harmonic pollution in enterprise power grids is becoming more and more serious. Due to the adverse effects of harmonics, the quality of electricity is deteriorating, the additional losses increasing, the reliability of the power grid reducing, so that the normal operation of enterprise power supply and consumption equipment is affected, and even equipment is damaged to cause electrical faults. Based on the requirements and current situations of electricity safety, this paper analyzes the functions and effects of active filter devices in biopharmaceutical safety power supply systems.

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.