IEC 60076-5 Transformer Impedances
The impedance of a power transformer has a direct impact on the total cost of the power system. Cost of power transformer, protective devices, etc will be affected. Electrical Engineers …
Arc Flash – Hazard and System Grounding
IEEE 1584 Guide Equation for calculation of incident energy has a factor K2 for system grounding. The value of K2 is Ungrounded and high or low resistance grounded systems = …
IEEE / IEC Oil-immersed Transformers – Methods of Cooling
Oil-immersed transformer cooling methods are consistent in both the IEC and IEEE. This designation is one of the few that is the same for both standards. Oil-immersed transformer cooling method …
IEC 60909 vs ANSI/IEEE 141 Short-Circuit Current Calculations
Short-circuit calculation is one of the most important work to be undertaken in plant power distribution. A comprehensive, detailed and accurate short-circuit currents will be used in switchgear selection, protection …