Northrop Grumman tested a solid rocket motor Dec. 4 as part of an internal program to advance solid rocket propulsion ...

Art. 430, Part XII provides the NEC requirements for the protection of the live parts of motor systems, regardless of the voltage. At less than a quarter page, Part 12 is the shortest Part of Art. 430 ...

Electrical equipment often has at least one motor used to rotate or displace an object from its initial position. There are a variety of motor types available in the market, including induction motors ...

Kristin is a lead editor at Forbes Home and has nearly a decade of professional experience as a writer and editor. She's previously worked at sites like Talking Points Memo, Insider, Delish, Angi and ...

If the source of supply is d.c. (for example in a battery vehicle or a rapid transit system) a chopper-type converter is usually employed. The basic operation of a single-switch chopper was discussed ...