Typical Protection Relay Timing Errors Protection relay grading intervals are critical in ensuring selective coordination in power systems. The recommended protection relay grading intervals typically depend on the type of …
Earthing systems are essential components of electrical systems, serving to safeguard individuals in close proximity from potential electric shocks and ensuring the proper functioning of equipment in the event of …
I was reminded of this article which I have written about many years ago when I attended some product presentations about variable speed drives. What catch my attention most was …
The selection of utilization and distribution voltage levels is one of the most important considerations in power system design. System voltages usually affect the economics of equipment selection and plant …
What is a Statutory Law? What do NFPA 70, BS 7671 and AS/NZS 3000 have in common? The former is National Electrical Code (U.S.), the next is the wing regulation …
In 2008, I have written some articles on voltage drop calculations as a tool in the selection of the correct cable sizes. Voltage Drop Calculation; Voltage Drop Calculation Part 2; …