Technical Knowledge Sharing

1. Overview and Objectives An 11 kV / 0.4 kV substation is an important part of the power distribution infrastructure serving industrial facilities, commercial buildings, and public facilities. Its primary functions are to receive power, step down the voltage, and distribute electricity. Power is supplied from the upstream 11 kV network and transformed to 0.4 […]

1. Internal Arc Fault: A Rapidly Developing and Destructive Fault Internal arc faults in MV/LV switchgear are among the most destructive fault types in power distribution systems. When insulation breaks down or a sustained arc forms between conductors, intense light radiation, high temperature and pressure effects are produced within an extremely short time. As the […]