With the continuous growth of electricity demand, increasingly stringent requirements are being placed on the reliability of power system supply. Many power supply systems are now equipped with two or more incoming feeder circuits. Automatic Transfer Switching (ATS) devices can effectively improve power supply reliability. Such devices can automatically and rapidly switch the standby power source into service or transfer loads to the standby power source when the primary power source is disconnected due to a fault. The AM5SE-B high-voltage ATS device introduced in this paper was specially programmed for the unique configuration of this project, which consists of two utility incoming feeders, one bus-tie breaker, and two diesel generator feeders. The device was integrated into the existing secondary circuits on site. The ATS scheme implemented segmented bus transfer and diesel generator backup transfer functions, significantly improving the reliability, safety, and power quality of substation operation. It is also beneficial for realizing substation integrated automation and unattended or minimally attended operation.

Arc flash faults are among the most serious types of faults in switchgear assemblies. The resulting arcs can easily damage other components, thereby exacerbating the incident and often leading to significant economic losses. Arc flash protection monitors arc intensity and current fluctuations to promptly isolate the fault, providing effective protection and minimizing economic losses. This paper presents application and configuration schemes for the ARB series arc flash protection in busbars of low-voltage power distribution systems, as well as in critical individual cabinets such as capacitor compensation cabinets and active filter cabinets. These examples clearly demonstrate the necessity of installing arc flash protection.

Acrel has introduced an energy storage cabinet metering solution based on the DJSF1352-RN-6 1500V DC energy meter. Integrated with BMS, PCS, and cloud platforms, it enables real-time monitoring and accurate bidirectional metering. The solution addresses key challenges in energy storage systems and supports safe, efficient, and low-carbon lifecycle management.

Acrel Energy Storage Cabinet Product Series Key Technical Parameters Parameter Item Specification System Model AESB-125/261-L Rated Power 125kW Nominal Capacity 261kWh System Efficiency Initial single-cycle maximum efficiency 87% (fully charged and d...

Project Overview This Project covers the comprehensive monitoring of different energy sources such as electricity, water, and gas at the Shanghai headquarters, the Kunshan subsidiary in Jiangsu, the Guangde subsidiary in Anhui, and the Anting subsidi...