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 …
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 …
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 …
Electric Shock Electric shock is defined as a dangerous physiological effect resulting from the passage of electric current through a human body or livestock. A useful reference document is British …
The Philippine Electrical Code has specific provisions on the total load of a branch circuit that is required to be complied in any electrical installation. Section 2.20.2.9 is specific on …
In North America and in the Philippines, the standard system voltages are specified in ANSI C84.1. For Europe and the rest of the world, the standard system voltages are specified …