Challenges, opportunities, constraints and innovations
Grand designs did not start with a grand idea. Evolution is always a big factor in achieving the great fate brought about by a successful project. As one of my …
NEMA Design Letters of Polyphase Squirrel-Cage Induction Motors
As per NEMA Standard MG-1, polyphase squirrel-cage induction motors may be one of the following. The four NEMA (National Electrical Manufacturers Association) designs have unique speed-torque-slip relationships – making them …
Voltage Classes – ANSI vs IEC
As Electrical Engineers, we deal with voltages almost every day in our lives. Sometimes, voltages levels or voltage classes are a bit confusing not only for us but for other …
IEEE 519-2022 Changes from IEEE 519-2014
Introduction IEEE 519 Standard for Harmonic Control in Electric Power Systems is a highly recognized and referenced standard and has been updated in 2022. The purpose of the IEEE 519 …
Sizing Generator for Motor Starting
1. Generator Motor Starting Capability It is the task of Electrical Engineers to ensure that a selected generator is capable of supplying the motor starting requirements of a power system. …
How to Protect Your House and Its Contents from Lightning
This IEEE Guide for Surge Protection of Equipment Connected to AC Power and Communication Circuits. Authors: Richard L. Cohen Doug Dorr James Funke Chuck Jensen S. Frank Waterer Surge protection …