A variable frequency drive (VFD) motor is an advanced electric motor controlled by a VFD that adjusts frequency and voltage ...

A. A motor can be protected against overload as well as short circuit and ground fault by a single overcurrent device sized to the overload requirements contained in Sec. 430.32 [430.55]. For example, ...

Note: This article is based on the 2011 NEC. Article 430 provides the requirements for electric motors while Art. 440 offers amended and additional requirements for hermetic motors, such as those used ...

All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings ...

The electric-motor manufacturer is partnering with pyrotechnic specialist Pyroalliance to bring equipment to market by 2023 that could provide instant protection against electric arcs. Safran ...

Nikesh Kooverjee has been contributing to the automotive sphere for 11 years. His previous roles include Digital Editor at CAR South Africa and associate editor at CarBuzz. He has always had a strong ...

Any enthusiast will be able to tell you the seat-of-the-pants characteristics of their favorite engine. The torque-peakiness of an Eighties turbo car, the endless rev-hungry climb of a naturally ...