Introduction This guide discusses the basic concepts involved in studies of harmonic analysis of industrial and commercial power systems. The need for such an analysis, recognition of potential problems, corrective …
Short-circuit withstand ratings of a switchboard or motor control centre is a measure of its ability to withstand the dynamic and thermal stresses when a fault occurs within or near …
1. Arc-Flash Hazard Warning The requirement of arc-flash hazard warning in the Philippine electrical Code 2017 is stipulated in Section 1.10.17 Arc-Flash Hazard Warning. This section of the PEC requires …
As far as I know, IEC has not mentioned medium voltage in any of its standards except in IEC 61000-3-6. The following table provides the different voltage levels as per …
IEC 60909 recommends the calculation of maximum and minimum short circuit currents. The article expounds the discussion on the purpose for maximum and minimum short-circuit currents. Maximum short-circuit currents need …
Electrical Injuries Electrical injuries represent a serious workplace health and safety issue. Many workers who experience electrical injury have insufficient training for working on or around energized electrical equipment. The …