Mixing low voltage (LV) and extra-low voltage (ELV) control voltages in a multicore cable is a common mistake committed by inexperienced design engineers. Combining these control voltages may look good …
This paper presents the criteria in the selection and coordination of motor control centers (MCCs) components to comply with the requirements for motor service continuity in the most of industrial …
This paper discusses the fundamentals of a motor thermal model and its mathematical interpretation and physics for the different stages of motor operation such as overload, locked rotor, too frequent …
When Thomas Alva Edison started his electric illuminating company and began the electrical distribution system, he used only one insulated (from earth) conductor and the earth for the return conductor. …
What is an Engineer? An engineer is a professional who invents, designs and maintains machines, structures and information systems. Engineers adheres to the client’s specifications, budget and timeline. Engineers are …
Grounded System In a grounded system, the primary function of the main bonding jumper and of the system bonding jumper is to create the link for ground-fault current between the …