|Glossary of Terms
- Horsepower Work done by a power producing device. One horsepower equals 33,000 foot-pounds of work per minute. (1 h.p. = 746 Watts.)
- Foot-Pound Energy required to raise one-pound weight against the force of gravity the distance of one foot.
- Torque Rotating force produced by a motor.
- Units of Torque Pound-feet, ounce-inches, ounce-feet.
- Full Load Torque Torque required to produce rated horsepower at full load speed.
- Breakdown Torque Maximum torque a motor will produce. Often times referred to as Pull-Out Torque, or Maximum Torque
- Starting Torque Torque produced by a motor at rest when power is applied.
- Synchronous Speed Maximum speed for a Squirrel Cage alternating-current motor.
Equal to: Frequency x 120
- Full Load Speed Speed at which rated horsepower is developed.
- Slip Percentage difference between synchronous and full load speeds.
- Poles The number of magnetic poles set up inside the motor by the placement and connection of the windings.
- Stator Stationary part of a motor.
- Rotor Rotating element of an induction machine.
- Armature Rotating element of a machine requiring a commutator.
- Insulation Non-conducting materials separating the current-carrying parts from each other or from the core.
- Mush Coil Coil made with round wire.
- Form Coil Coil made with rectangular or square wires.
- Rated Temperature Rise The permissible rise in temperature when operating under load.
- Hertz Preferred terminology for “Cycles per Second”.