IEC Equipment Voltages

There are two (2) voltage levels used in IEC, low voltage ( < 1000 V ) and high voltage ( > 1000 V ). Medium voltage, inspite being oftenly used …

10 Reasons to Use Per unit

In the advent of computers, per unit or percent methods of calculations simplify short circuit calculations. J. Lewis Blackburn and Thomas J. Domin, in their book Protective Relaying, Principles and …

IEEE and IEC Interface

A project dealing only with either IEEE or IEC standards is not an issue. If there will be mix standards within a single project, then compliance becomes an issue. In …